ORO2U Dirt Catalogue - Dirt Section E - Engine and Performance Section. clutch plates, clutch covers, ignition covers, reeds, air filters, fuel taps, exhausts, piston kits, engine bearings, con-rods, cylinder kits, cam chains, engine valves, cam shafts, gaskets sets.
Section E
Index
Accelerator Pump Covers Accelerator Pump Rebuild Kits
E350 E340 E403
- Psychic Cylinder Kits - Vertex Cyliner Kits
E69-71
Muffler Gaskets Muffler Packing
E401 E391 E373 E264
E71
Adhesive Thermometers Air Box Covers - Psychic Air Cut-Off Valves Air Filter Accessories
Cylinder Re-Boring
E1 E1
O-Clips
E296-297 E338-339
Cylinder Re-Nikasil Plated Bores
Oil Coolers
Cylinder Sleeves Drive Shaft Seals
E62-65
Oil Drain Plugs Oil Filler Caps Oil Filter Covers
E264b-265 E264-264a E265a-266b
E300
E155 E287 E146 E404
Air Filter Seals Air Filter Skins
E298-299
Dust Covers
E301
Engine Bearings
Oil Filters
E267-272
Air Filters - Clamp On
E302-303
Engine Hour Meters
Oil Pump Covers Oil Reservoir Pincer Tools Pipe Protectors
E263b E267 E373 E392 E2-57
Air Filters - Flo Air Filters - ProX
E294
Engine Oil Seals Engine Valves Exahust Plugs
E158-166 E206-217
E289-292
Air Filters - Ready Racing
E295
E392 E387 E395 E394
Air Filters - Twin Air Air Flow - FMF Snap
E273-286
Exahust Strap Mounts
Piston Kits
E304 E300 E300 E232
Exhaust Clamps & Sealing
- Athena Piston Kits - Namura Piston Kits - Prox Piston Kits - Vertex Piston Kits - Wiseco Piston Kits - Wossner Piston Kits Piston Pin Size Chart Power-Flo Fuel Taps Power-Up Jet Kits Powervalve Covers
E37
Airbox - Mini MX Airbox Vents Ball Hones Big End Pins Breather Caps Breather Hoses
Exhaust Connectors Exhaust Gaskets
E38-43
E398-402
E2-8
Exhaust Maintenance & Performance
E391 E403 E393 E389
E44-57
E61
Exhaust Misc.
E9-22
E349 E349 E202
Exhaust Mountings
E23-36
Exhaust Packing (FMF)
E58
Cam Chain Tensioner
Exhaust Spares Exhaust Springs
E387-388 E396-397
E364 E390 E266 E372 E267
Cam Chains Camshafts
E195-201 E202-205
Exhaust Springs & O Rings (FMF)
E388 E395
Carburettor Accessories Carburettor Assemblies Carburettor Needle Clips Carburettor Repair Kits
E351 E312 E330
Exhaust Tape
Quick Disconnect Couplings
Exhausts
E375-383 E345-346
Racing Oil Filters
Extended Fuel Mixture Screw
Rad Block Reeds - OEM
E308-311b E305-307
E313-320
Filter Cages Filter Care
E286 E293 E288 E341 E331
Rad Valve Blocks
Carburettor Spares Choke Plunger Kits
E330 E343
Rocket Cover Gaskets
E186 E237 E392 E384 E385 E386
Filter Care - Twin Air
Rubber Clutch Cushions - Wiseco
Float & Pin Sets
Silencer Cores Silencer Decals Silencer End Caps Silencer Inserts Sprocket Seal Kits
Clutch Baskets - ProX Clutch Baskets - Wiseco Clutch Components - Wiseco
E238-239 E236-237
Float Bowl - Boyesen Float Bowl Gaskets Float Bowl Nuts Float Bowl Screws
E321-324
E234 E260
E351 E330
Clutch Cover Guard
E156-157
Clutch Covers - Boyesen
E258-259
Float Needles Float Valves FMF Apparel FMF Exhausts
E325-330 E325-330
Stator Rewinds Super Cooler
E1
Clutch Covers - FIR
E259c-259e
E261 E232 E232
Clutch Cylinder Protectors
E259f
E390
Tappet Adjusting Screws
Clutch Gaskets
E187-191
E375-390
Tappets
Clutch Gaskets - Wiseco Clutch Parts - Mini MX
E235 E257
Free Flo Vent Hoses
E374 E374 E370 E374 E372 E370 E371 E368 E344 E347 E374
Thrust Washers Top Gasket Sets
E61
Fuel Breather
E174-182 E153-154
Clutch Plate Sets
E243-257
Fuel Filters
Transmission Bearing Kits
Clutch Pressure Plates
E241 E233 E256 E242
Fuel Filters / Cap Vents
Universal Filter Foam Valve & Spring Kits
E303
Clutch Push Rod Bearing & Seal Kits
Fuel Hose Clips Fuel Line Plugs
E220-222 E228-229 E223-227
Clutch Removal Tool
Valve Guides Valve Shims
Clutch Rubbers
Fuel Lines
Complete Gasket Sets
E174-182
Fuel Petcock Tap Mount O-Rings
Valve Spring Compressors
E222
Con Rod Bearing
E60 E59
Fuel Pump Rebuild Kits
Valve Spring Kits Valve Stem Seals
E218-219 E230-231b
Con Rod Bearings & Pins
Fuel Screws
Con Rod Kits
E121-137 E128-129 E130-131 E132-133 E134-135 E136-137 E372-373 E138-144 E148-152
Fuel Tank Filters - TwinAir
Vintage Filter Cages Water Pump Cooler Kits Water Pump Covers Water Pump Re-Build Kits
E286
- Athena Con Rod Kits - Hotrods Con Rod Kits - Prox Con Rod Kits - Psychic Con Rod Kits
Fuel Tap Repair Kits
E365-369 E352-364 E352-353 E174-182
E262-263
Fuel Taps
E263a
Fuel Taps (Fuel Star)
E168-170
Gasket Sets
Water Pump Seals Water Pump Shafts
E167
- Wossner Con Rod Kits Connectors, Clamps & Clips Crank / Main Bearings & Seals Crank Bearing & Seal kits
GY6 Engine Parts
E145
E171-173
Head & Base Gaskets Header Gaskets Heat Shield (FMF) Hot Start Plunger Kits
E183-185b E398-400
E387 E342
Crank Seals
E147
Crankshaft Repair & Rebuilding
E1
Hotcams
E203-205
Crankshafts
E116-120 E116-117
Hour Meters
E404
- Hotrods Crankshafts - Prox Crankshafts - Psychic Crankshafts - Wiseco Crankshafts - Wossner Crankshafts
Ignition Covers - Boyesen
E259a-259b
E118 E119 E120 E118 E115 E115
Ignition Gaskets Inner Clutch Hubs Intake Holder Kits
E192-194
E240, E242
E348 E331
Jets (Dellorto) Jets (Keihin) Jets (Mikuni)
Cylinder Head Kits
E332-334 E335-337
Cylinder Head Service Kits
Cylinder Kits
E66-114 E72-99 E100-114
Manifold / Flange Gaskets
E402 E351
- Athena Cylinder Kits
Mino Power Bowl
- Cylinder Works Cylinder Kits
www.oro2u.com
Tel: 01597 822 666
Fax: 01597 825 224
Section E
Index
Crankshaft Repair & Rebuilding
E1 E1 E1 E1
Cylinder Re-Boring
Cylinder Re-Nikasil Plated Bores
Stator Rewinds
Piston Kits
E2-57
- Athena Piston Kits - Namura Piston Kits - Prox Piston Kits - Vertex Piston Kits - Wiseco Piston Kits - Wossner Piston Kits Piston Pin Size Chart
E37
E38-43
E2-8
E44-57
E9-22
E23-36
E58
www.oro2u.com
Tel: 01597 822 666
Fax: 01597 825 224
Service
Cylinder Re-Boring • We offer a Reboring service (Not in house). • 10-14 day turn around. • Collection and delivery service available. Cylinder Re-Boring 71-100
Cylinder Re-Nikasil Plated Bores • Nickasil is the process as done by the manufacturers on all barrels. • Very hard finish and long lasting. • Beware of cheap alternatives i.e. Chroming, as not suitable for high performance engines. • Even if your bore is damaged, repair welding can be done before nicklesealing, and
barrel will look like new. • 10-21 day turn around. • Collection and delivery service available. • Any nickle bore barrel can be done. Cylinder Nikasil Re-Plating Cylinder Repair & Re-Plating
71-101 71-101R
Crankshaft Repair & Rebuilding • If you’re prepping your bike for the new season or rebuilding mid-season, you’ll find our services for crank re-builds are unrivaled. • 5-7 day turn around. • Collection and delivery service available. Crankshaft Repair & Rebuilding 71-103
Stator Rewinds • If you have an ignition problem we can solve it without you having to change the whole magneto which could cost you the earth. A stator coil rewind is a top clas solution. • Send it to us and we will have it back to you normally within 4 days or less. Stator Rewinds 71-133
Pj1 Engine Assembly Lube A special extreme pressure lubricant that eliminates all critical wear to engine and transmission components during initial start up of newly rebuilt engines. Assembly lube uses a ozone safe propellant. Engine Assy Lube 01-736
*Please visit our website for current prices
E-mail: sales@oro2u.com
www.oro2u.com
E1
Piston Kits
ProX
ProX Piston Kits ProX pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX piston kits are a first class solution to replace the original piston in your motorcycle. ProX piston kits for sleeved cylinders are available in standard size and a wide range of over sizes. ProX pistons for plated cylinders come in standard size, A, B, C, D & over sizes. All ProX piston kits are supplied complete with piston rings, wrist pin and circlips, ready to install!
ProX 2-Stroke Piston Kits
• ProX pistons are manufactured by the same factories in Japan that supply the OEMs. This ensures OEM quality but allows ProX to make improvements upon OEM designs when needed. • The majority of ProX 2-stroke pistons are cast from aluminum containing approximately 18% silicon. This material and manufacturing combination reduces thermal expansion, allowing pistons to be run at tighter tolerances and reducing wear. • ProX adds additional performance features to piston designs where they feel necessary. For example, some 2-stroke pistons will have wrist pin oiling holes drilled in the bottom of the pin towers. • A quality piston’s performance is only as good as the components it uses. ProX 2-stroke pistons come with OEM quality, Japanese rings to ensure durabilty and performance is consistent throughout the entire piston package.
BETA 2-Stroke Models
Years
Size
Piston Kit
Piston Rings
Piston Pin
Piston Clips 56-0166.PX 56-0174.PX 56-0181.PX 56-0181.PX 56-0181.PX 56-0181.PX 56-0181.PX 56-0181.PX
Small End Bearing
RR 50 Enduro RR 125 Enduro RR 250 Enduro
2005 - 16 40.3mm 56-W9850.130.PX 2018 - 23 54mm 56-W035.A.PX 2013 - 21 66.4mm 56-W9857.A.PX 2018 - 21 66.4mm 56-W9857.A.PX 2013 - 17 72mm 56-W9817.A.PX 2018 - 21 72mm 56-W6723.A.PX 2021 - 24 72mm 56-W6723.A.PX 2015 - 17 72mm 56-W9817.A.PX 2018 - 21 72mm 56-W6723.A.PX
–
56-6306.PROX 56-800.PROX 56-8020.PROX 56-8020.PROX 56-8020.PROX 56-8020.PROX 56-8020.PROX 56-8020.PROX
56-R1223.PX 56-R1200.PX 56-R1200.PX 56-R1201.PX 56-R1201.PX 56-R1201.PX 56-R1201.PX
56-783.PX 56-7924.PR 56-7924.PR
Xtrainer 250
RR 300 Enduro RR 300 Enduro
– – – – –
RX 300
Xtrainer 300 Xtrainer 300
–
–
–
BETA 4-Stroke Models
Years
Size
Piston Kit
Piston Rings
Piston Pin
Piston Clips 56-0189.PX 56-0181.PX 56-0181.PX
Small End Bearing
RR 250 Enduro (+2mm Oversize) RR 350 Enduro (Std. Comp. 12.9:1) RR 350 Enduro (Std. Comp. 13.2:1) RR 390 Enduro (Std. Comp. 12.5:1) RR 400 Enduro (Std. Comp. 12.4:1) RR 430 Enduro (Comp. 11.9:1)
2005 - 07 77mm 56-W029_200.PX 2011 - 14 88mm 56-W9818.A.PX 2015 - 22 88mm 56-W9835.A.PX 2015 - 22 88mm 56-W9846.A.PX 2010 - 14 95mm 56-W9819.A.PX 2015 - 22 95mm 56-W9887.A.PX 2005 - 09 89mm 56-W178.A.PX
–
–
– – – – – – – – – – – – – –
56-R1202.PX
56-0725.PR 56-0725.PR
56-R1203.PX
56-7970.PR
56-0187.PX
RR 450 Enduro (Std. Comp.)
56-R1204.PX 56-R1204.PX 56-R1203.PX 56-R1205.PX 56-R1205.PX 56-R1206.PX 56-R1206.PX
56-7967.PR 56-7967.PR 56-7970.PR
56-0187.PX 56-0187.PX 56-0187.PX 56-0187.PX 56-0187.PX 56-0187.PX 56-0187.PX
(High Comp.)
2005 - 09 89mm
56-W178.B.PX.HI
RR 450 Enduro (Std. Comp. 12.0:1) RR 480 Enduro (Std. Comp. 11.9:1) RR 498 Enduro (Std. Comp. 12.0:1) RR 520 Enduro (Std. Comp. 12.0:1)
2010 - 14 95mm 56-W9820.A.PX 2015 - 22 100mm 56-W6724.A.PX 2012 - 14 100mm 56-W9821.A.PX 2010 - 11 100mm 56-W9821.A.PX 2005 - 09 95mm 56-W4731.A.PX
56-7970.PR 56-7970.PR
RR 525 Enduro (Std. Comp.) RR 525 Enduro (High Comp.)
56-7958 56-7958
2005 - 09 95mm
56-W216+00B.PX
*Please visit our website for current prices E2
www.oro2u.com
Tel: 01597 822 666
Fax: 01597 825 224
ProX
Piston Kits
ProX Piston Kits ProX pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX piston kits are a first class solution to replace the original piston in your motorcycle. ProX piston kits for sleeved cylinders are available in standard size and a wide range of over sizes. ProX pistons for plated cylinders come in standard size, A, B, C, D & over sizes. All ProX piston kits are supplied complete with piston rings, wrist pin and circlips, ready to install!
GASGAS 2-Stroke Models
Years
Size
Piston Kit
Piston Rings 56-R1246.PX 56-R1248.PX 56-R1227.PX 56-R1223.PX 56-R1207.PX 56-R1200.PX 56-R1200.PX 56-R1200.PX 56-R1201.PX 56-R1201.PX 56-R1201.PX
Piston Pin
Piston Clips 56-0166.PX 56-0166.PX 56-0170.PX 56-0174.PX 56-0181.PX 56-0181.PX 56-0181.PX 56-0181.PX 56-0181.PX 56-0181.PX 56-0181.PX
Small End Bearing
MC 50 MC 65 MC 85 MC 125
2021 - 23 39.5mm 56-W802.A.PX 2021 - 23 45mm 56-W313.A.PX 2021 - 23 47mm 56-W012.A.PX 2021 - 23 54mm 56-W035.A.PX
56-6513.PROX 56-6307.PROX 56-821.PROX 56-800.PROX 56-802.PROX 56-8020.PROX 56-8020.PROX 56-8020.PROX 56-802.PROX 56-8020.PROX 56-8020.PROX
56-783.PX 56-781.PR
MC/EC/XC 250
1997 - 19 66.4mm 2021 - 23 66.4mm 2022 - 23 66.4mm 2022 - 23 66.4mm
56-W157.A.PROX 56-W214.A.PROX 56-W214.A.PROX 56-W214.A.PROX
EC 250 EX 250 MC 250
56-7924.PROX 56-7924.PROX 56-7924.PROX
EC/XC 300
2000 - 19 72mm 56-W159.A.PX 2021 - 23 72mm 56-W9984.A.PX 2021 - 23 72mm 56-W9984.A.PX
56-781.PR
EC 300 EX 300
GASGAS 4-Stroke Models EC 250F (Std. Comp. 12.5:1) EC 250F (Std. Comp. 13.8:1) EC 250F (Std. Comp. 14.5:1) EX 250F (Std. Comp. 14.4:1) EX 250F (Std. Comp. 14.5:1) MC 250F (Std. Comp. 14.4:1) MC 250F (Std. Comp. 14.5:1) EC 350F (Std. Comp. 13.5:1) EX 350F (Std. Comp. 14.2:1)
Years
Size
Piston Kit
Piston Rings 56-R1208.PX 56-R1225.PX
Piston Pin 56-0718.PR
Piston Clips 56-0175.PX 56-0176.PX
Small End Bearing
2010 - 15 77mm 56-W188.A.PX 2021 - 23 78mm 56-W954.A.PX
– – – – – – – – – – – – – – – –
56-6500.PROX
2024
81mm 56-W4984.A.PX
2021 - 23 78mm 56-W265.A.PX
56-R1278.PX
56-6500.PROX
56-0176.PX
2024
81mm 56-W4984.A.PX
2021 - 23 78mm 56-W265.A.PX
56-R1278.PX
56-6500.PROX
56-0176.PX
2024
81mm 56-W4984.A.PX
2021 - 24 88mm 56-W4735_00A.PX 2021 - 24 88mm 56-W4735_00A.PX 2023 - 24 88mm 56-W4735_00A.PX 2013 - 15 95mm 56-W222.A.PX 2013 - 15 95mm 56-W223.B.PX 2021 - 23 95mm 56-W956.A.PX
56-R1202.PX 56-R1202.PX 56-R1202.PX 56-R1209.PX 56-R1209.PX 56-R1203.PX
56-0725.PROX 56-0725.PROX 56-0725.PROX
56-0181.PX 56-0181.PX 56-0181.PX 56-0182.PX 56-0182.PX 56-0185.PX
MC 350F
EC 450F (Std. Comp. 12.5:1)
56-0726.PR 56-0726.PR
(High Comp. 13.0:1)
EX 450F (Std. Comp. 12.75:1) EX 450F (Std. Comp. 13.1:1) MC 450F (Std. Comp. 12.75:1) MC 450F (Std. Comp. 13.1:1)
56-7959.PROX
2024
95mm 56-W4985.A.PX
2021 - 23 95mm 56-W956.A.PX
56-R1203.PX
56-7959.PROX
56-0185.PX
2024
95mm 56-W4985.A.PX
ProX 4-Stroke Piston Kits
• ProX 4-stroke pistons for performance applications are forged, while others are cast. Because most motorcycle and ATV applications are high performance, the majority of ProX 4-stroke pistons are forged. • When treated properly, 4032 alloy offers greater strength and more wear resistance thanks to reduced thermal expansion and increased hardness. • ProX 4-stroke pistons’ alloy reduces the chances of microwelding in the ring grooves thanks to the additional hardness. • ProX pistons are designed and manufactured to OEM specifications at a minimum. Some designs are improved upon based on market need or an OEM weak point. • ProX only uses rings that come from reputable Japanese OE suppliers. A piston is only as good as its ring pack. • ProX 4-stroke piston kits include the piston, rings, wrist pin, and wire locks. They are available for a wide range of applications
*Please visit our website for current prices
E-mail: sales@oro2u.com
www.oro2u.com
E3
Piston Kits
ProX
ProX Piston Kits ProX pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX piston kits are a first class solution to replace the original piston in your motorcycle. ProX piston kits for sleeved cylinders are available in standard size and a wide range of over sizes. ProX pistons for plated cylinders come in standard size, A, B, C, D & over sizes. All ProX piston kits are supplied complete with piston rings, wrist pin and circlips, ready to install!
HONDA 2-Stroke Models
Years
Size
Piston Kit
Piston Rings
Piston Pin
Piston Clips
Small End Bearing
QR 50
All
40.75mm 56-W9925.075.PX
–
–
–
–
CR 80 (79cc) CR 80 (82cc)
1986 - 02 46mm 56-W041.PX 1986 - 02 47mm 56-W643.B.PX 2003 - 07 47.5mm 56-W833.B.PX
56-R1210.PX 56-R1211.PX 56-R1212.PX
56-7930.PR 56-7930.PR 56-7930.PR 56-722.PR 56-722.PR 56-722.PR 56-722.PR
56-0170.PX 56-0170.PX 56-0170.PX 56-0174.PX 56-0174.PX 56-0174.PX 56-0174.PX 56-0176.PX 56-0181.PX 56-0181.PX 56-0181.PX 56-0181.PX
56-821.PROX 56-821.PROX
CR 85 CR 125 CR 125 CR 125 CR 125 MTX 125 CR 250 CR 250 CR 250 CR 250 CR 480 CR 500
–
1988 - 91 54mm
56-W564+P0.PX
–
56-8142.PROX 56-8142.PROX 56-8142.PROX 56-8142.PROX
1992 - 03 54mm 56-W676.A.PX
56-R1239.PX 56-R1240.PX 56-R1213.00
2004
54mm
56-W840+00A.PX
2005 - 07 54mm 56-W859.A.PX 1988 - 90 56mm 56-W905.B.PX 1986 - 96 66.4mm 56-W614.A.PX 1997 - 01 66.4mm 56-W702.A.PX
–
–
–
56-R1215.00 56-R1215.00 56-R1215.00 56-R1216.00 56-R1222.PX 56-R1222.PX
56-7924.PR 56-7924.PR 56-7924.PR 56-7924.PR
56-6373.PROX 56-6373.PROX 56-6373.PROX 56-6373.PROX
2002 - 04 66.4mm 2005 - 07 66.4mm
56-W801+00A.PX 56-W860+00A.PX
1982 - 83 89mm 56-W636.000.PX 1982 - 01 89mm 56-W636.000.PX
–
–
–
56-0738.PR
56-0187.PX
56-7999.PROX
ProX 2-Stroke Piston Kits
• ProX pistons are manufactured by the same factories in Japan that supply the OEMs. This ensures OEM quality but allows ProX to make improvements upon OEM designs when needed. • The majority of ProX 2-stroke pistons are cast from aluminum containing approximately 18% silicon. This material and manufacturing combination reduces thermal expansion, allowing pistons to be run at tighter tolerances and reducing wear. • ProX adds additional performance features to piston designs where they feel necessary. For example, some 2-stroke pistons will have wrist pin oiling holes drilled in the bottom of the pin towers. • A quality piston’s performance is only as good as the components it uses. ProX 2-stroke pistons come with OEM quality, Japanese rings to ensure durabilty and performance is consistent throughout the entire piston package.
*Please visit our website for current prices
E3a
www.oro2u.com
Tel: 01597 822 666
Fax: 01597 825 224
ProX
Piston Kits
ProX Piston Kits
HONDA 4-Stroke Models
Years
Size
Piston Kit
Piston Rings
Piston Pin 56-0706.PR 56-0706.PR
Piston Clips 56-0169.PX 56-0169.PX 56-0174.PX 56-0174.PX 56-0170.PX 56-0170.PX 56-0170.PX
Small End Bearing
CRF 70 XR 70 XL 125 XL 125 S
2004 - 12 47mm 56-W9822.000.PX 1997 - 03 47mm 56-W9822.000.PX 1977 - 83 56.5mm 56-W9852.000.PX
– – – –
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
– –
56.5mm 56-W9823.000.PX
CRF 150R (Std. Comp. 11.7:1) CRF 150R (High Comp. 12.2:1) CRF 150R (Std. Comp. 11.7:1) XR 200 (Std. Comp. 10.0:1) XR 200R (Std. Comp. 10.0:1) CRF 230F (Std. Comp. 9.0:1) CRF 230L (Std. Comp. 9.0:1) CRF 250R (Std. Comp. 12.9:1)
2007 - 09 66mm 2007 - 09 66mm
56-W4915+00A.P 56-W4924+00B.P
56-R1214.PX 56-R1214.PX 56-R1214.PX
56-7965.PR 56-7965.PR 56-7965.PR
2012 - 23 66mm 56-W914.B.PX 1980 - 84 65.5mm 56-W4156.000.PX 1981 - 02 65.5mm 56-W4156.000.PX
– – – –
– – – – – – –
– – – –
2003 - 19 65.5mm 2008 - 09 65.5mm
56-W4816+000.P 56-W4816+000.P
2004 - 07 78mm 56-W4829.A.PX
56-R1217.PX 56-R1217.PX 56-R1217.PX 56-R1268.PX 56-R1218.PX 56-R1268.PX 56-R1268.PX 56-R1276.PX 56-R1276.PX 56-R1276.PX 56-R1276.PX 56-R1217.PX
56-0176.PX 56-0176.PX 56-0176.PX 56-0176.PX 56-0176.PX 56-0176.PX 56-0176.PX 56-0175.PX 56-0175.PX 56-0175.PX 56-0175.PX 56-0176.PX
(High Comp. 13.5:1)
2004 - 07 78mm 2008 - 09 78mm
56-W4829.A.PXH 56-W4829.A.PXH
CRF 250R (Std. Comp. 13.5:1) CRF 250R (Std. Comp. 13.2:1)
2010 - 13 76.8mm 56-W950.A.PX
56-7952.PR 56-7952.PR 56-7952.PR 56-7952.PR 56-7952.PR 56-7952.PR 56-7952.PR 56-7952.PR
(High Comp. 14.2:1)
2010 - 13 76.8mm
56-W950.A.PX.HC
CRF 250R (Std. Comp. 13.2:1)
2014 - 15 76.8mm 56-W958.A.PX 2016 - 17 76.8mm 56-W8800.A.PX 2018 - 19 79mm 56-W8806.A.PX 2020 - 23 79mm 56-W4788.A.PX
CRF 250R CRF 250R
CRF 250R (Std. Comp. 13.9:1)
CRF 250RX
2019
79mm 56-W8806.A.PX
CRF 250RX (Std. Comp. 13.9:1) CRF 250X (Std. Comp. 12.9:1) XR 250 Tornado (Std. Comp. 9.3:1)
2020 - 23 79mm 56-W4788.A.PX 2004 - 17 78mm 56-W4829.A.PX 2001 - 12 73mm 56-W9824.000.PX
– –
–
–
XR 400 (Std. Comp. 9.3:1)
1996 - 04 85mm
56-W4606+000.P
56-R1241.PX 56-R1272.PX 56-R1219.PX 56-R1219.PX 56-R1220.PX 56-R1221.PX 56-R1221.PX
56-0737.PR
56-0188.PX 56-0185.PX 56-0185.PX 56-0185.PX 56-0185.PX 56-0185.PX 56-0185.PX 56-0185.PX 56-0185.PX 56-0185.PX 56-0185.PX
CRF 450L CRF 450R
2019 - 23 96mm 56-W8811.A.PX 2002 - 03 96mm 56-W4820.A.PX23 2004 - 08 96mm 56-W4820.A.PX48 2009 - 12 96mm 56-W4978.A.PX 2013 - 16 96mm 56-W916.A.PX 2017 - 23 96mm 56-W9949.A.PX 2002 - 08 99mm 56-W4820_300.PX 2017 - 23 96mm 56-W9949.A.PX 2005 - 17 96mm 56-W4820.A.PX48 2019 - 23 96mm 56-W8811.A.PX
56-0749.PROX
56-0731.PR 56-0731.PR
CRF 450R (Std. Comp. 12.0:1) CRF 450R (Std. Comp. 12.0:1) CRF 450R (Std. Comp. 12.5:1) CRF 450R (Std. Comp. 13.5:1)
–
56-7959.PROX 56-7959.PROX 56-7959.PROX 56-7959.PROX
CRF 450R (Big Bore)
–
CRF 450RX (Std. Comp. 13.5:1) CRF 450X (Std. Comp. 12.0:1) CRF 450X (Std. Comp. 12.0:1) XL/XR 500R (Std. Comp. 9.3:1) XR 600R (Std. Comp. 9.0:1) XR 650L (Std. Comp. 8.3:1) XR 650R (Std. Comp. 10.0:1)
56-R1221.PX 56-R1219.PX 56-R1272.PX
56-0731.PR
56-0749.PROX
1979 - 82 89mm
56-W310+000.PX
– – – –
–
–
1985 - 00 97mm 56-W4366.000.PX 1993 - 19 100mm 56-W4562.000.PX 2000 - 07 100mm 56-W4715.00B.PX
56-0746.PR
56-0195.PX 56-0194.PX
– –
–
HUSABERG 2-Stroke Models
Years
Size
Piston Kit
Piston Rings 56-R1223.PX 56-R1200.PX 56-R1226.PX
Piston Pin 56-783.PX
Piston Clips 56-0174.PX 56-0181.PX 56-0183.PX Piston Clips 56-0176.PX 56-0176.PX 56-0176.PX 56-0181.PX 56-0185.PX 56-0185.PX 56-0185.PX 56-0185.PX 56-0185.PX
Small End Bearing
TE 125 TE 250 TE 300
2012 - 14 54mm 56-W035.A.PX
56-800.PROX 56-8020.PROX 56-8020.PROX
2011 - 14 66.4mm
56-W214.A.PROX
– –
2011 - 14 72mm 56-W854.A.PX
4-Stroke Models
Years
Size
Piston Kit
Piston Rings 56-R1224.PX
Piston Pin 56-0717.PR 56-0717.PR
Small End Bearing
FE 250 (Std. Comp. 13.2:1)
2013 2013 2014
76mm 76mm
56-W4730+00A.P 56-W4734+00A.P
– – – – – – – – –
(High Comp.)
–
FE 250 FE 350 FE 390 FE 450 FE 450 FX 450 FE 501
78mm 56-W954.A.PX
56-R1225.PX 56-R1202.PX 56-R1203.PX 56-R1203.PX 56-R1203.PX 56-R1203.PX 56-R1203.PX
–
2013 - 14 88mm 56-W960.A.PX 2010 - 12 95mm 56-W4739.B.PX 2009 - 12 95mm 56-W243.A.PX 2013 - 14 95mm 56-W968.A.PX 2010 - 12 95mm 56-W243.A.PX 2013 - 14 95mm 56-W9847.B.PX
56-0725.PR 56-7959.PR 56-7959.PR 56-7959.PR 56-7959.PR 56-7959.PR
*Please visit our website for current prices
E-mail: sales@oro2u.com
www.oro2u.com
E3b
Piston Kits
ProX
ProX Piston Kits ProX pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX piston kits are a first class solution to replace the original piston in your motorcycle. ProX piston kits for sleeved cylinders are available in standard size and a wide range of over sizes. ProX pistons for plated cylinders come in standard size, A, B, C, D & over sizes. All ProX piston kits are supplied complete with piston rings, wrist pin and circlips, ready to install!
HUSQVARNA 2-Stroke Models Years
Size
Piston Kit
Piston Rings 56-R1246.PX 56-R1248.PX 56-R1227.PX 56-R1223.PX 56-R1223.PX 56-R1223.PX 56-R1277.PX 56-R1277.PX 56-R1215.00 56-R1215.00 56-R1200.PX 56-R1200.PX 56-R1200.PX 56-R1226.PX 56-R1201.PX 56-R1201.PX 56-R1201.PX 56-R1201.PX
Piston Pin
Piston Clips
Small End Bearing
TC 50 TC 65 TC 85
2017 - 23 39.5mm 56-W802.A.PX 2017 - 23 45mm 56-W313.A.PX 2014 - 24 47mm 56-W012.A.PX 2014 - 24 54mm 56-W035.A.PX 2014 - 16 54mm 56-W035.A.PX 2017 - 19 54mm 56-W035.A.PX 2017 - 20 58mm 56-W6720.A.PX 2021 - 24 58mm 56-W053.A.PX 1998 - 05 66.4mm 56-W702.A.PX 1998 - 13 66.4mm 56-W702.A.PX
– – –
–
56-6306.PROX 56-6307.PROX 56-821.PROX 56-800.PROX 56-800.PROX 56-800.PROX 56-800.PROX 56-800.PROX 56-8021.PROX 56-8021.PROX 56-8020.PROX 56-8020.PROX 56-8020.PROX 56-8020.PROX 56-8020.PROX 56-8020.PROX 56-8020.PROX 56-8020.PROX
56-0166.PX 56-0170.PX 56-0174.PX 56-0174.PX 56-0174.PX 56-0174.PX 56-0174.PX 56-0181.PX 56-0181.PX 56-0181.PX 56-0181.PX 56-0181.PX 56-0183.PX 56-0181.PX 56-0181.PX 56-0181.PX 56-0181.PX
TC 125 TE 125 TX 125
56-783.PX 56-783.PX 56-783.PX
TE 150/150i TE 150/150i
–
56-0716.PROX
CR 250 WR 250 TC 250 TE 250 TE 250i TE 300 TE 300 TE 300i TX 300 TX 300i
56-7924.PR 56-7924.PR 56-7924.PR 56-7924.PR 56-7924.PR
2014 - 24 66.4mm 2014 - 17 66.4mm 2018 - 24 66.4mm
56-W214.A.PROX 56-W214.A.PROX 56-W214.A.PROX
2014 - 16 72mm 56-W854.A.PX
– – – –
2017
72mm 56-W9947.A.PX
2018 - 23 72mm 56-W9984.A.PX 2017 - 19 72mm 56-W9947.A.PX 2020 - 23 72mm 56-W9984.A.PX
HUSQVARNA 4-Stroke Models Years
Size
Piston Kit
Piston Rings 56-R1225.PX 56-R1225.PX
Piston Pin
Piston Clips 56-0176.PX 56-0176.PX
Small End Bearing
FC 250 (Std. Comp. 13.9:1) FC 250 (Std. Comp. 14.4:1) FC 250 (Std. Comp. 14.5:1) FE 250 (Std. Comp. 13.9:1) FE 250 (Std. Comp. 14.5:1) FC 350 (Std. Comp. 13.5:1)
2014 - 15 78mm 56-W954.A.PX 2016 - 22 78mm 56-W265.A.PX 2023 - 24 81mm 56-W4987.A.PX 2014 - 23 78mm 56-W954.A.PX
56-6500.PROX 56-6500.PROX
– – – – – – – – – – – – – – – – – – – – – –
56-R1225.PX
56-6500.PROX
56-0176.PX
2024
81mm 56-W4987.A.PX
2014 - 15 88mm 56-W4735_00A.PX
56-R1202.PX 56-R1202.PX 56-R1202.PX 56-R1202.PX 56-R1202.PX 56-R1202.PX 56-R1202.PX 56-R1203.PX
56-0725.PR 56-0725.PR 56-0725.PR 56-0725.PR
56-0181.PX 56-0181.PX 56-0181.PX 56-0181.PX
(High Comp. 14.5:1)
2014 - 15 88mm
56-W4736+00B.PX
2016 - 24 88mm 56-W4735_00A.PX 2014 - 16 88mm 56-W960.A.PX 2017 - 19 88mm 56-W9932.A.PX 2020 - 24 88mm 56-W4735_00A.PX 2017 - 24 88mm 56-W4735_00A.PX 2014 - 22 95mm 56-W956.A.PX 2023 - 24 95mm 56-W4985.A.PX 2014 - 19 95mm 56-W968.A.PX
FC 350 (Std. Comp. 13.5:1) FE 350 (Std. Comp. 12.3:1) FE 350 (Std. Comp. 12.3:1) FE 350 (Std. Comp. 13.5:1) FX 350 (Std. Comp. 14.1:1) FC 450 (Std. Comp. 12.6:1) FC 450 (Std. Comp. 13.1:1) FE 450 (Std. Comp. 11.9:1) FE 450 (Std. Comp. 12.75:1) FS 450 (Std. Comp. 12.6:1) FS 450 (Std. Comp. 13.1:1) FX 450 (Std. Comp. 12.6:1) FX 450 (Std. Comp. 13.1:1) FE 501 (Std. Comp. 11.8:1) FE 501 (Std. Comp. 12.75:1)
–
–
56-0725.PROX 56-0725.PROX 56-7959.PROX
56-0181.PX 56-0181.PX 56-0185.PX
56-R1203.PX
56-7959.PROX
56-0185.PX
2020
95mm 56-W8815.A.PX
2015 - 23 95mm 56-W956.A.PX 2023 - 24 95mm 56-W4985.A.PX 2017 - 22 95mm 56-W956.A.PX 2023 - 24 95mm 56-W4985.A.PX 2014 - 19 95mm 56-W9847.B.PX 2020 - 23 95mm 56-W8816.A.PX
56-R1203.PX
56-7959.PROX
56-0185.PX
56-R1203.PX
56-7959.PROX
56-0185.PX
56-R1203.PX
56-7959.PROX
56-0185.PX
*Please visit our website for current prices E4
www.oro2u.com
Tel: 01597 822 666
Fax: 01597 825 224
ProX
Piston Kits
ProX Piston Kits ProX pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX piston kits are a first class solution to replace the original piston in your motorcycle. ProX piston kits for sleeved cylinders are available in standard size and a wide range of over sizes. ProX pistons for plated cylinders come in standard size, A, B, C, D & over sizes. All ProX piston kits are supplied complete with piston rings, wrist pin and circlips, ready to install!
KAWASAKI 2-Stroke Models
Years
Size
Piston Kit
Piston Rings 56-R1228.PX 56-R1229.PX 56-R1230.PX 56-R1231.PX 56-R1232.PX 56-R1233.PX
Piston Pin 56-0748.PR 56-0748.PR 56-7988.PR 56-7988.PR 56-7988.PR
Piston Clips 56-0167.PX 56-0167.PX 56-0170.PX 56-0170.PX 56-0170.PX 56-0170.PX
Small End Bearing 56-6308.PROX 56-6308.PROX 56-823.PROX 56-823.PROX 56-823.PROX 56-823.PROX 56-823.PROX 56-823.PROX 56-823.PROX 56-800.PROX.KX 56-800.PROX.KX 56-800.PROX.KX 56-800.PROX.KX 56-8061.PROX
KX 60 KX 65
1983 - 04 43mm 56-W648.A.PX 2000 - 24 44.5mm 56-W752.A.PX 1988 - 00 47mm 56-W644 47.PX
KX 80 (79cc) KX 80 (82cc)
1990 - 00 48mm
56-W644+A.PX
KX 85 KX 85
2001 - 13 48.5mm 56-W782.A.PX 2014 - 24 48.5mm 56-W879.00A.PX 1995 - 13 52.5mm 56-W651.A.PX 2014 - 21 52.5mm 56-W651.A.PX1 2022 - 23 52.5mm 56-W651.A.PX1
– – – – –
KX 100 KX 100 KX 112 KX 125 KX 125 KX 125 KX 125
–
– – –
56-R1271.PX 56-R1271.PX
1995 - 97 54mm 1999 - 00 54mm 2001 - 02 54mm
56-W652.D.PX
–
56-0174.PX 56-0174.PX 56-0174.PX 56-0174.PX 56-0176.PX
56-W741+00D.PX 56-W783+00B.PX
56-R1234.PX 56-R1234.PX 56-R1234.PX 56-R1235.PX 56-R1236.PX 56-R1236.PX 56-R1237.PX 56-R1238.PX 56-R1242.PX
56-0713.PR 56-0713.PR 56-0713.PR
2003 - 08 54mm 56-W834.A.PX
KDX 200
1986 - 06 66mm 1992 - 95 67.4mm 1990 - 91 67.4mm
56-W597+0A.PX 56-W607+00B.PX 56-W607+00B.PX
– – – – – –
KDX 250 E
–
–
KX 250 KX 250 KX 250 KX 500
56-0180.PX 56-0181.PX 56-0181.PX
56-881.PROX 56-881.PROX 56-881.PROX 56-8050.PROX
1992 - 04 67.4mm 56-W617.B.PX 2005 - 08 66.4mm 56-W844.B.PX 1988 - 04 86mm 56-W575.A.PX
–
KAWASAKI 4-Stroke Models
Years
Size
Piston Kit
Piston Rings 56-R1243.PX 56-R1244.PX 56-R1245.PX 56-R1244.PX 56-R1245.PX 56-R1245.PX 56-R1225.PX 56-R1281.PX 56-R1281.PX 56-R1281.PX 56-R1281.PX
Piston Pin 56-7968.PR 56-7968.PR
Piston Clips 56-0176.PX 56-0176.PX 56-0176.PX 56-0176.PX 56-0176.PX 56-0175.PX 56-0175.PX 56-0175.PX 56-0175.PX 56-0175.PX 56-0175.PX 56-0187.PX 56-0185.PX 56-0185.PX 56-0185.PX 56-0185.PX 56-0185.PX 56-0185.PX
Small End Bearing
KX 250F (Std. Comp. 12.6:1) KX 250F (Std. Comp. 13.5:1) KX 250F (Std. Comp. 13.2:1) KX 250F (Std. Comp. 13.5:1) KX 250F (Std. Comp. 13.8:1) KX 250F (Std. Comp. 13.4:1) KX 250 (Std. Comp. 14.2:1) KX 250 (Std. Comp. 14.1:1) KX 250 (Std. Comp. 14.1:1) KX 250X (Std. Comp. 14.1:1) KX 250X (Std. Comp. 14.1:1) KLX 400R (Std. Comp. 12.2:1) KX 450F (Std. Comp. 12.0:1) KX 450F (Std. Comp. 12.5:1) KX 450F (Std. Comp. 12.5:1) KX 450F (Std. Comp. 12.8:1) KX 450F (Std. Comp. 12.8:1) KX 450 (Std. Comp. 12.5:1) KX 450X (Std. Comp. 12.5:1) KLX 450R (Std. Comp. 12.0:1)
2004 - 05 77mm 56-W4842.A.PX 2006 - 09 77mm 56-W4920.A.PX
– – – – – – – – – – – – – – – – – – – –
2010
77mm 56-W953.A.PX
– – –
2011 - 14 77mm 56-W952.A.PX 2015 - 16 77mm 56-W331.A.PX 2017 - 19 77mm 56-W8807.A.PX
56-6500.PROX 56-6500.PROX 56-6500.PROX
2020
78mm 56-W8817.A.PX
2021 - 22 78mm 56-W8820.A.PX 2023 - 24 78mm 56-W4983.A.PX 2021 - 22 78mm 56-W8820.A.PX 2023 - 24 78mm 56-W4983.A.PX
56-6500.PROX
2003
90mm 56-W4713.A.PX
–
–
2006 - 08 96mm 56-W212.A.PX 2009 - 12 96mm 56-W4980.A.PX 2013 - 14 96mm 56-W965.A.PX
56-R1219.PX 56-R1221.PX 56-R1221.PX 56-R1221.PX 56-R1221.PX 56-R1221.PX
56-0731.PR 56-7959.PR 56-7959.PR 56-7959.PR 56-7959.PR
2015
96mm 56-W330.A.PX
2016 - 18 96mm 56-W965.A.PX 2019 - 23 96mm 56-W8809.A.PX 2021 - 23 96mm 56-W8809.A.PX 2008 - 21 96mm 56-W212.A.PX
–
56-R1219.PX
56-0731.PR
56-0185.PX
*Please visit our website for current prices
E5
E-mail: sales@oro2u.com
www.oro2u.com
Piston Kits
ProX
ProX Piston Kits ProX pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX piston kits are a first class solution to replace the original piston in your motorcycle. ProX piston kits for sleeved cylinders are available in standard size and a wide range of over sizes. ProX pistons for plated cylinders come in standard size, A, B, C, D & over sizes. All ProX piston kits are supplied complete with piston rings, wrist pin and circlips, ready to install!
KTM 2-Stroke Models
Years
Size
Piston Kit
Piston Rings 56-R1246.PX 56-R1246.PX 56-R1246.PX 56-R1247.PX 56-R1248.PX 56-R1248.PX 56-R1227.PX 56-R1249.PX 56-R1250.PX 56-R1223.PX 56-R1249.PX 56-R1223.PX 56-R1223.PX 56-R1251.PX 56-R1277.PX
Piston Pin
Piston Clips 56-0166.PX 56-0166.PX
Small End Bearing
50 Adventure
2002 - 08 39.5mm 56-W803.A.PX 2001 - 08 39.5mm 56-W803.A.PX 2009 - 23 39.5mm 56-W802.A.PX 1997 - 99 43.5mm 56-W312.A.PX 2000 - 08 45mm 56-W746.A.PX 2009 - 23 45mm 56-W313.A.PX 2003 - 24 47mm 56-W012.A.PX
–
50 SX 50 SX 60 SX 65 SX 65 SX 85 SX
56-6306.PROX 56-6306.PROX 56-6307.PROX 56-6307.PROX 56-6307.PROX 56-821.PROX 56-800.PROX 56-800.PROX 56-800.PROX 56-800.PROX 56-800.PROX
– – – – –
–
56-0166.PX 56-0166.PX 56-0166.PX 56-0170.PX 56-0174.PX 56-0174.PX 56-0174.PX 56-0174.PX 56-0174.PX 56-0174.PX 56-0174.PX 56-0174.PX
54.25mm 56-W740.A.PX
56-783.PX 56-783.PX 56-783.PX 56-783.PX 56-783.PX 56-783.PX
125 SX 125 SX 125 SX
1994 - 00
2001 - 06 54mm 56-W010.A.PX 2007 - 24 54mm 56-W035.A.PX
125 EXC 125 EXC 125 XC-W
1994 - 00
54.25mm 56-W740.A.PX
2001 - 16 54mm 56-W035.A.PX 2017 - 19 54mm 56-W035.A.PX
–
144 SX
2008 2020
56mm 56-W036.B.PX 58mm 56-W6720.A.PX
– – – –
56-800.PROX 56-800.PROX
150 EXC TPi 150 EXC TPi
2021 - 24 58mm 56-W053.A.PX 2009 - 15 56mm 56-W036.B.PX 2016 - 22 58mm 56-W6720.A.PX 2017 - 19 58mm 56-W6720.A.PX 1998 - 16 64mm 56-W770.A.PX 1996 - 99 67.5mm 56-W694.B.PX
–
–
–
150 SX 150 SX
56-R1251.PX 56-R1277.PX
56-0174.PX
56-800.PROX 56-800.PROX 56-800.PROX 56-820.PROX 56-8020.PROX 56-8020.PROX 56-8020.PROX 56-8020.PROX 56-8020.PROX 56-8020.PROX 56-8020.PROX 56-8020.PROX 56-8020.PROX 56-8020.PROX
56-0601.PX 56-0601.PX
– –
150 XC-W 200 EXC
–
56-R1252.PX
–
56-0176.PX 56-0183.PX 56-0181.PX 56-0181.PX 56-0183.PX 56-0181.PX 56-0181.PX 56-0181.PX 56-0181.PX 56-0181.PX 56-0183.PX 56-0181.PX 56-0181.PX 56-0181.PX 56-0181.PX 56-0181.PX
250 SX 250 SX 250 SX
–
56-0724.PR 56-7924.PR 56-7924.PR 56-0724.PR 56-781.PR 56-7924.PR 56-7924.PR 56-7924.PR
2000 - 02 66.4mm 2003 - 24 66.4mm
56-W774.D.PX
56-R1253.PX 56-R1200.PX
56-W214.A.PROX
250 EXC 250 EXC 250 EXC
1996 - 99 67.5mm 56-W694.B.PX
–
2000 - 05 66.4mm 2006 - 17 66.4mm 2018 - 24 66.4mm 2014 - 17 66.4mm 1996 - 03 72mm
56-W753.B.PROX 56-W214.A.PROX 56-W214.A.PROX 56-W214.A.PROX 56-W712+00A.PX
56-R1207.PX 56-R1200.PX 56-R1200.PX 56-R1200.PX 56-R1201.PX 56-R1226.PX 56-R1201.PX 56-R1201.PX 56-R1201.PX
250 EXC TPI 250 R Freeride
300 EXC 300 EXC 300 EXC
– – – – –
2004 - 16 72mm 56-W854.A.PX
2017
72mm 56-W9947.A.PX
–
2018 - 24 72mm 56-W9984.A.PX 2023 - 24 72mm 56-W9984.A.PX
300 EXC TPI
56-8020.PROX 56-8020.PROX 56-8020.PROX 56-8020.PROX
300 SX
360 SX/EXC 380 SX/EXC
1996 - 97 78mm 1998 - 02 78mm
56-W747+00C.PX 56-W748+00C.PX
– –
56-7905.PR 56-7905.PR
*Please visit our website for current prices E6
www.oro2u.com
Tel: 01597 822 666
Fax: 01597 825 224
ProX
Piston Kits
ProX Piston Kits ProX pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX piston kits are a first class solution to replace the original piston in your motorcycle. ProX piston kits for sleeved cylinders are available in standard size and a wide range of over sizes. ProX pistons for plated cylinders come in standard size, A, B, C, D & over sizes. All ProX piston kits are supplied complete with piston rings, wrist pin and circlips, ready to install!
KTM 4-Stroke Models
Years
Size
Piston Kit
Piston Rings 56-R1224.PX 56-R1224.PX 56-R1254.PX 56-R1225.PX 56-R1225.PX 56-R1224.PX 56-R1254.PX 56-R1225.PX 56-R1225.PX 56-R1202.PX 56-R1202.PX 56-R1202.PX 56-R1202.PX 56-R1202.PX 56-R1202.PX 56-R1202.PX 56-R1202.PX 56-R1203.PX 56-R1204.PX 56-R1204.PX 56-R1203.PX 56-R1203.PX 56-R1203.PX 56-R1206.PX 56-R1206.PX 56-R1255.PX 56-R1255.PX 56-R1203.PX 56-R1203.PX 56-R1206.PX 56-R1206.PX 56-R1255.PX 56-R1255.PX 56-R1203.PX 56-R1203.PX 56-R1203.PX 56-R1203.PX 56-R1203.PX 56-R1206.PX 56-R1206.PX 56-R1206.PX 56-R1206.PX
Piston Pin
Piston Clips 56-0176.PX 56-0176.PX 56-0176.PX
Small End Bearing
250 EXC-F (Std. Comp. 12.8:1)
2007 - 11 76mm 2012 - 13 76mm 2007 - 13 76mm
56-W4730+00A.P 56-W4730+00A.P 56-W4734+00A.P
56-7931.PROX 56-7931.PROX 56-7931.PROX
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
(Std. Comp. 13.2:1) (High Comp. 13.3:1)
250 EXC-F (Std. Comp. 13.9:1) 250 EXC-F (Std. Comp. 14.5:1) 250 F Freeride (Std. Comp. 12.8:1) 250 SX-F (Std. Comp. 12.8:1)
2014 - 23 78mm 56-W954.A.PX
–
–
2024
81mm 56-W4984.A.PX
2018 - 20 78mm 56-W954.A.PX
56-6500.PROX
56-0176.PX 56-0176.PX 56-0176.PX 56-0176.PX 56-0176.PX 56-0181.PX 56-0181.PX 56-0181.PX 56-0181.PX 56-0181.PX 56-0181.PX 56-0181.PX 56-0181.PX 56-0185.PX 56-0187.PX 56-0187.PX 56-0185.PX 56-0185.PX 56-0185.PX 56-0187.PX 56-0187.PX 56-0185.PX 56-0185.PX 56-0185.PX 56-0185.PX 56-0187.PX 56-0187.PX 56-0185.PX 56-0185.PX 56-0185.PX 56-0185.PX 56-0185.PX 56-0185.PX 56-0185.PX 56-0187.PX 56-0187.PX 56-0187.PX 56-0187.PX 56-0193.PX 56-0193.PX 56-0193.PX 56-0193.PX 56-0187.PX 56-0187.PX 56-0187.PX 56-0193.PX
2006 - 12 76mm 2006 - 12 76mm
56-W4730+00A.P 56-W4734+00A.P
56-0717.PR 56-0717.PR
(High Comp. 13.3:1)
250 SX-F (Std. Comp. 13.9:1) 250 SX-F (Std. Comp. 14.4:1) 250 SX-F (Std. Comp. 14.5:1) 350 EXC-F (Std. Comp. 12.3:1) 350 EXC-F (Std. Comp. 12.3:1) 350 EXC-F (Std. Comp. 13.5:1) 350 SX-F (Std. Comp. 13.5:1)
2013 - 15 78mm 56-W954.A.PX 2016 - 22 78mm 56-W265.A.PX 2023 - 24 81mm 56-W4984.A.PX 2012 - 16 88mm 56-W960.A.PX 2017 - 19 88mm 56-W9932.A.PX 2020 - 24 88mm 56-W4735.A.PX
56-6500.PROX 56-6500.PROX
56-0725.PROX 56-0725.PROX 56-0725.PROX
2011 - 15 88mm 2011 - 15 88mm 2016 - 19 88mm
56-W4735+00A.P 56-W4736+00B.P 56-W4735+00A.P
56-0725.PR 56-0725.PR 56-0725.PR 56-0725.PR 56-0725.PR 56-7959.PR
(High Comp. 14.5:1)
350 SX-F (Std. Comp. 14.0:1)
2020 - 24 88mm 56-W4735_00A.PX 2012 - 17 88mm 56-W960.A.PX 2009 - 11 95mm 56-W4739.B.PX 2003 - 07 89mm 56-W178.A.PX
(Std. Comp. 14.2:1)
350 Freeride (Std. Comp. 12.3:1) 400 EXC (Std. Comp. 11.1:1) 450 EXC-R (Std. Comp. 11.0:1)
– –
(High Comp. 12.0:1)
2003 - 07 89mm
56-W178.B.PX.HI
450 EXC-R (Std. Comp. 11.9:1) 450 EXC (Std. Comp. 11.8:1) 450 EXC-F (Std. Comp. 11.8:1) 450 SM-R (Std. Comp. 12.0:1)
2008 - 11 95mm 56-W243.A.PX 2012 - 16 95mm 56-W968.A.PX 2017 - 20 95mm 56-W968.A.PX 2004 - 07 95mm 56-W4805.B.PX 2004 - 07 95mm 56-W4806.B.PX 2008 - 12 97mm 56-W107.B.PX 2008 - 12 97mm 56-W244.A.PX 2013 - 14 95mm 56-W956.A.PX 2021 - 22 95mm 56-W956.A.PX 2023 - 24 95mm 56-W4985.A.PX 2003 - 06 95mm 56-W4805.B.PX 2003 - 06 95mm 56-W4806.B.PX 2007 - 12 97mm 56-W107.B.PX 2007 - 12 97mm 56-W244.A.PX 2013 - 19 95mm 56-W956.A.PX 2020 - 22 95mm 56-W956.A.PX 2023 - 24 95mm 56-W4985.A.PX 2012 - 16 95mm 56-W9847.B.PX 2017 - 19 95mm 56-W9847.B.PX 2020 - 23 95mm 56-W8816.A.PX 2000 - 02 95mm 56-W4731.A.PX
56-7959.PR 56-7959.PR 56-7959.PR
56-7958 56-7958
(High Comp. 13.0:1)
450 SM-R (Std. Comp. 12.5:1)
56-7959.PR 56-7959.PR 56-7959.PR 56-7959.PR
(High Comp. 13.5:1)
450 SM-R (Std. Comp. 12.6:1)
450 SM-R 450 SM-R
450 SX (Std. Comp. 12.0:1)
56-7958 56-7958
(High Comp. 13.0:1)
450 SX-F (Std. Comp. 12.5:1)
56-7959.PR 56-7959.PR 56-7959.PR 56-7959.PR
(High Comp. 13.5:1)
450 SX-F (Std. Comp. 12.6:1)
(Std. Comp. 12.75:1)
450 SX-F (Std. Comp. 13.1:1) 500 EXC (Std. Comp. 11.8:1) 500 EXC-F (Std. Comp. 11.8:1) 500 EXC-F (Std. Comp. 12.75:1) 520 SX/EXC (Std. Comp. 11.0:1)
56-7959.PR 56-7959.PR
56-7959.PROX
56-7958 56-7958 56-7958 56-7958
(High Comp. 12.5:1)
2000 - 02 95mm
56-W216+00B.PX
525 SX/EXC (Std. Comp. 11.0:1)
2003 - 07 95mm 56-W4731.A.PX
(High Comp. 12.5:1)
2003 - 07 95mm 1994 - 97 101mm 1998 - 01 101mm 2002 - 07 101mm
56-W216+00B.PX 56-W181.A.PROX 56-W181.A.PROX 56-W181.A.PROX 56-W181.A.PROX
620 LC4, Duke (Std. Comp. 11.7:1)
– – – – – – – –
– – – –
620 SC (Std. Comp. 11.7:1) 620 SXC (Std. Comp. 11.7:1)
640 LC4, Duke II (Std. Comp. 11.7:1) 1998 - 07 101mm
56-0736.PR 56-0736.PR 56-0736.PR 56-0742.PR
690 Enduro/R (Std. Comp. 11.8:1) 690 Supermoto (Std. Comp. 11.8:1)
2008 - 11 102mm 56-W9831.B.PX 2007 - 09 102mm 56-W9831.B.PX 2008 - 11 102mm 56-W9831.B.PX
690 SMC (Std. Comp. 11.8:1)
990 Adventure/R (Std. Comp. 11.5:1) 2009 - 12 101mm 56-W9833.B.PX
*Please visit our website for current prices
E-mail: sales@oro2u.com
www.oro2u.com
E7
Piston Kits
ProX
ProX Piston Kits
ProX pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low- friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX piston kits are a first class solution to replace the original piston in your motorcycle. ProX piston kits for sleeved cylinders are available in standard size and a wide range of over sizes. ProX pistons for plated cylinders come in standard size, A, B, C, D & over sizes. All ProX piston kits are supplied complete with piston rings, wrist pin and circlips, ready to install!
2-Stroke Models RIEJU
Years
Size
Piston Kit
Piston Rings 56-R1201.PX
Piston Pin
Piston Clips 56-0181.PX
Small End Bearing
MR 300 Pro / Racing / Ranger
2021
72mm 56-W159.A.PX
56-781.PROX
56-802.PROX
SHERCO
2-Stroke Models
Years
Size
Piston Kit
Piston Rings
Piston Pin
Piston Clips 56-0166.PX 56-0174.PX 56-0174.PX 56-0181.PX
Small End Bearing
50 SE / SM 125 SC-R 125 SE-R 250 SC-R
2003 - 19 40.3mm 56-W9850.130.PX
–
56-6306.PROX 56-8142.PROX 56-8142.PROX 56-6373.PROX 56-6373.PROX 56-6373.PROX 56-6373.PROX 56-6373.PROX
2019
54mm 56-W9845.A.PX
56-729.PROX 56-729.PROX 56-781.PROX
2018 - 22 54mm 56-W9845.A.PX
–
2019
66.34mm 56-W9989.A.PX
56-R1207.PX
250 SE / SE-R 250 SE / SE-R
2014 - 16 66.34mm 56-W9988.A.PX 2017 - 22 66.34mm 56-W9989.A.PX
–
–
–
56-R1207.PX 56-R1201.PX 56-R1201.PX
56-781.PROX
56-0181.PX 56-0181.PX 56-0181.PX
300 SC-R
2019
72mm 56-W9990.A.PX
– –
300 SE / SE-R
2016 - 22 72mm 56-W9990.A.PX
4-Stroke Models 250 SE F / SE F-R
Years
Size
Piston Kit
Piston Rings
Piston Pin
Piston Clips
Small End Bearing
2014 - 18 76mm 56-W9986.A.PX 2014 - 18 76mm 56-W9986.A.PX 2014 - 17 84mm 56-W9987.A.PX 2014 - 17 84mm 56-W9987.A.PX
– – – –
– – – –
– – – –
– – – –
2.5 SE i-FR
300 SE F / SE F-R
3.0 SE i-FR
SUZUKI 2-Stroke Models
Years
Size
Piston Kit
Piston Rings 56-R1228.PX 56-R1229.PX 56-R1256.PX 56-R1257.PX
Piston Pin
Piston Clips 56-0167.PX 56-0167.PX 56-0170.PX 56-0170.PX 56-0174.PX 56-0174.PX 56-0181.PX 56-0181.PX 56-0181.PX 56-0181.PX Piston Clips 56-0176.PX 56-0176.PX 56-0176.PX 56-0187.PX 56-0187.PX 56-0185.PX 56-0185.PX 56-0185.PX 56-0185.PX 56-0185.PX
Small End Bearing
RM 60 RM 65
2003
43mm 56-W648.A.PX
– –
56-6308.PROX 56-6308.PROX
2003 - 05 44.5mm 56-W752.A.PX
RM 80 (82cc)
1991 - 01 47.5mm
56-W645+P0.PX
56-715.PR 56-715.PR
–
RM 85 RM 100 RM 125 RM 125 RM 250 RM 250 RM 250 RM 250
2002 - 23 48mm 56-W806.A.PX
56-821.PROX 56-823.PROX 56-800.PROX 56-800.PROX 56-8090.PROX 56-8090.PROX 56-8090.PROX 56-8090.PROX
2003
52.5mm 56-W651.A.PX
2000 - 03 54mm 56-W754.A.PX 2004 - 11 54mm 56-W835.A.PX
56-R1258.PX 56-R1258.PX
56-0715.PR 56-0715.PR
1989 - 95 67mm
56-W642.00D.PX
–
–
1996 - 97 66.4mm 56-W614.A.PX
56-R1215.00 56-R1215.00 56-R1259.PX Piston Rings 56-R1243.PX 56-R1260.PX 56-R1245.PX 56-R1261.PX 56-R1261.PX 56-R1221.PX 56-R1221.PX 56-R1221.PX 56-R1221.PX 56-R1221.PX
56-7924.PR 56-7924.PR
1998
66.4mm 56-W702.A.PX
2003 - 12 66.4mm 56-W742.A.PX
–
4-Stroke Models
Years
Size
Piston Kit
Piston Pin 56-7968.PR
Small End Bearing
RM-Z 250 (Std. Comp. 12.6:1) RM-Z 250 (Std. Comp. 13.4:1) RM-Z 250 (Std. Comp. 13.4:1) DR-Z 400 (Std. Comp. 12.2:1) DR-Z 400 (High Comp. 13.5:1) RM-Z 450 (Std. Comp. 12.2:1)
2004 - 06 77mm 56-W4842.A.PX 2007 - 09 77mm 56-W4921.A.PX 2010 - 24 77mm 56-W951.A.PX 2000 - 22 90mm 56-W4713.A.PX
– – – – – – – – – –
–
56-6500.PR
– –
2000 - 22 90mm
56-W4713.PX.HC
2008 - 12 96mm 56-W4953.B.PX 2008 - 12 96mm 56-W307.B.PX 2013 - 24 96mm 56-W4955.B.PX 2010 - 19 96mm 56-W4953.B.PX 2010 - 19 96mm 56-W307.B.PX
56-7959.PR 56-7959.PR 56-7959.PR 56-7959.PR 56-7959.PR
(High Comp)
RM-Z 450 (Std. Comp. 12.5:1) RMX 450 Z (Std. Comp. 12.2:1)
(High Comp. 13.2:1)
*Please visit our website for current prices E7a
www.oro2u.com
Tel: 01597 822 666
Fax: 01597 825 224
ProX
Piston Kits
TM
2-Stroke Models
Years
Size
Piston Kit
Piston Rings
Piston Pin 56-783.PX
Piston Clips 56-0174.PX
Small End Bearing
MX/EN 125 MX/EN 144 MX/EN 250 MX/EN 300
1992 - 13 54mm
56-W016.C.PROX
–
56-814.PROX 56-814.PROX 56-6373.PROX 56-6373.PROX
2008 - 14 56mm 56-W9840.B.PX 1999 - 16 66.4mm 56-W020.C.PX 2002 - 16 72mm 56-W032.C.PX
56-R1262.PX
– – –
– – –
– –
YAMAHA
2-Stroke Models
Years
Size
Piston Kit
Piston Rings 56-R1263.PX 56-R1280.PX 56-R1264.PX
Piston Pin 56-7979.PR
Piston Clips 56-0165.PX
Small End Bearing
PW 50 YZ 65 YZ 85 YZ 125 YZ 125 YZ 125 YZ 125 YZ 125 YZ 125 YZ 125 YZ 125
1981 - 23 40mm
56-W938+000.PX
56-7996.PROX 56-822.PROX 56-821.PROX 56-815.PROX 56-815.PROX 56-815.PROX 56-836.PROX 56-814.PROX 56-814.PROX 56-814.PROX 56-814.PROX 56-814.PROX 56-814.PROX
2018 - 23 43.5mm 56-W9991.A.PX 2002 - 23 47.5mm 56-W805.A.PX
–
–
56-7930.PR 56-721.DR 56-721.DR 56-726.PR 56-0714.PR 56-0714.PR 56-0714.PR 56-0715.PR 56-0715.PR 56-0715.PR
56-0170.PX 56-0176.PX 56-0176.PX 56-0176.PX 56-0174.PX 56-0174.PX 56-0174.PX 56-0174.PX 56-0174.PX 56-0174.PX 56-0174.PX
56-W503+000_PX *** 56-W629+00B.PX 56-W647+00A.PX
1983
56mm
– – –
1990 - 93 56mm 1994 - 96 54mm
1997 - 00 54mm 56-W726.A.PX
56-R1265.PX 56-R1265.PX 56-R1250.PX 56-R1266.PX 56-R1266.PX 56-R1266.PX 56-R1266.PX
2001
54mm 56-W726.A.PX
2002 - 04 54mm 56-W797.A.PX 2005 - 21 54mm 56-W845.A.PX 2022 - 23 54mm 56-W899.A.PX 2020 - 22 54mm 56-W845.A.PX
YZ 125X YZ 125X
2023
54mm 56-W899.A.PX
1982 - 83 68mm 56-W9859.200.PX ** 1988 - 98 68mm 56-W677.B.PX 1999 - 23 66.4mm 56-W742.A.PX 2016 - 23 66.4mm 56-W742.A.PX 1988 - 97 68mm 56-W677.B.PX
IT 175 YZ 250 YZ 250
– –
– –
–
–
56-0181.PX 56-0181.PX 56-0181.PX 56-0181.PX Piston Clips 56-0176.PX 56-0176.PX 56-0176.PX 56-0176.PX 56-0176.PX 56-0176.PX 56-0176.PX 56-0176.PX 56-0176.PX 56-0176.PX 56-0176.PX 56-0176.PX 56-0176.PX 56-0181.PX 56-0181.PX 56-0185.PX 56-0185.PX 56-0182.PX 56-0182.PX 56-0181.PX 56-0181.PX 56-0181.PX 56-0181.PX 56-0181.PX 56-0181.PX 56-0181.PX 56-0182.PX 56-0182.PX 56-0181.PX 56-0181.PX 56-0181.PX
56-8090.PROX
56-R1259.PX 56-R1259.PX
56-0729.PR 56-0729.PR
56-8010.PX 56-8010.PX
YZ 250X WR 250
–
–
56-8090.PROX
4-Stroke Models
Years
Size
Piston Kit
Piston Rings 56-R1208.PX 56-R1208.PX 56-R1208.PX 56-R1245.PX 56-R1245.PX 56-R1245.PX 56-R1245.PX 56-R1245.PX 56-R1245.PX 56-R1208.PX 56-R1245.PX 56-R1245.PX 56-R1245.PX
Piston Pin 56-0718.PR 56-0718.PR 56-7966.PR 56-6500.PR 56-6500.PR 56-6500.PR 56-6500.PR 56-6500.PR 56-6500.PR 56-0718.PR 56-6500.PR 56-6500.PR 56-6500.PR
Small End Bearing
YZ 250F (Std. Comp. 12.5:1) YZ 250F (Std. Comp. 13.5:1) YZ 250F (Std. Comp. 13.5:1) YZ 250F (Std. Comp. 13.5:1) YZ 250F (Std. Comp. 13.5:1) YZ 250F (Std. Comp. 13.8:1) YZ 250FX (Std. Comp. 13.5:1) YZ 250FX (Std. Comp. 13.5:1) YZ 250FX (Std. Comp. 13.8:1) WR 250F (Std. Comp. 12.5:1) WR 250F (Std. Comp. 13.5:1) WR 250F (Std. Comp. 13.5:1) WR 250F (Std. Comp. 13.8:1) YZ 400F (Std. Comp. 12.5:1) WR 400F (Std. Comp. 12.5:1) YZ 426 F (Std. Comp. 12.5:1) WR 426 F (Std. Comp. 12.5:1) YZ 450 F (Std. Comp. 12.5:1)
2001 - 07 77mm 56-W188.A.PX 2008 - 11 77mm 56-W4952.A.PX 2012 - 13 77mm 56-W108.00A.PX 2014 - 15 77mm 56-W4961.A.PX 2016 - 18 77mm 56-W4966.A.PX 2019 - 23 77mm 56-W8812.A.PX 2015 - 16 77mm 56-W4961.A.PX 2017 - 19 77mm 56-W4966.A.PX 2020 - 23 77mm 56-W8812.A.PX 2001 - 13 77mm 56-W188.A.PX 2015 - 17 77mm 56-W4961.A.PX 2018 - 19 77mm 56-W4966.A.PX 2020 - 23 77mm 56-W8812.A.PX 1998 - 99 92mm 56-W4649.B.PX 1998 - 00 92mm 56-W4649.B.PX
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
– –
– –
2000 - 02 95mm 2001 - 02 95mm
56-W4693+00B.P 56-W4693+00B.P
56-R1209.PX 56-R1209.PX 56-R1209.PX 56-R1209.PX 56-R1267.PX 56-R1255.PX 56-R1267.PX 56-R1267.PX 56-R1255.PX 56-R1267.PX 56-R1267.PX 56-R1209.PX 56-R1209.PX 56-R1255.PX 56-R1267.PX 56-R1267.PX
56-0732.PR 56-0732.PR 56-0726.PR 56-0726.PR 56-0725.PR 56-0725.PR
2003 - 09 95mm 56-W222.A.PX 2003 - 09 95mm 56-W223.B.PX 2010 - 13 97mm 56-W261.B.PX 2014 - 17 97mm 56-W4963.B.PX 2018 - 19 97mm 56-W4965.A.PX 2020 - 22 97mm 56-W4787.A.PX
(High Comp. 13.0:1)
YZ 450 F (Std. Comp. 12.5:1) YZ 450 F (Std. Comp. 12.5:1) YZ 450 F (Std. Comp. 12.8:1) YZ 450 F (Std. Comp. 13.0:1) YZ 450 F (Std. Comp. 13.0:1) YZ 450 FX (Std. Comp. 12.5:1) YZ 450 FX (Std. Comp. 12.8:1) YZ 450 FX (Std. Comp. 13.0:1) WR 450 F (Std. Comp. 12.5:1)
– –
2023
97mm 56-W4986.A.PX
2016 - 18 97mm 56-W4963.B.PX
56-0725.PR
2019 - 20 97mm
56-W4965.A.PROX
– –
2021 - 23 97mm 56-W4787.A.PX 2003 - 15 95mm 56-W222.A.PX 2003 - 15 95mm 56-W223.B.PX 2016 - 18 97mm 56-W4963.B.PX
56-0726.PR 56-0726.PR 56-0725.PR
(High Comp. 13.0:1)
WR 450 F (Std. Comp. 12.5:1) WR 450 F (Std. Comp. 12.8:1) WR 450 F (Std. Comp. 13.0:1) XT 500 (Std. Comp. 9.0:1)
56-W4965.A.PROX
– – –
2019 - 20 97mm
2021 - 23 97mm 56-W4787.A.PX
56-W4045+000.P
– –
–
1976 - 81 87mm
XT/TT 600
1984 - 04 95mm 56-W4596.000.PX
56-0744.PR
56-0191.PX
**Only available in +2mm oversize ***Only available in oversizes
*Please visit our website for current prices
E-mail: sales@oro2u.com
www.oro2u.com
E7b
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