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
E450 E440 E502
Cylinder Kits
E90-110 E98-103 E104-110
Jets (Mikuni)
E435-437
- Athena Cylinder Kits
Manifold / Flange Gaskets
E511 E451 E515 E503 E481 E344
Adhesive Thermometers Air Box Covers - Psychic Air Cut-Off Valves Air Filter Accessories
- Cylinder Works Cylinder Kits
Mino Power Bowl Muffler Gaskets Muffler Packing
E386-387 E438-439 E390-391 E374-375
- Psychic Cylinder Kits - Vertex Cylinder Kits
E95-97
E97
Cylinder Re-Boring
E1 E1
O-Clips
Air Filter Covers
Cylinder Re-Nikasil Plated Bores
Oil Coolers
Air Filter Mounting Kits
E391
Cylinder Sleeves Drive Shaft Seals
E86-89
Oil Drain Plugs Oil Filler Caps Oil Filter Covers
E346-347 E344-345 E348-349 E351-356
Air Filter Seals Air Filter Skins
E388-389
E175 E384
E392
Dust Covers
Air Filters - Clamp On
E393-395
Engine Bearings
E170-171
Oil Filters
Air Filters - Flo Air Filters - ProX
E384
Engine Hour Meters
E516
Oil Pump Covers Oil Reservoir Pincer Tools Pipe Protectors
E343 E351 E481 E504 E2-81
E377-382
Engine Oil Seals Engine Valves Exahust Plugs
E180-190 E258-275
Air Filters - Ready Racing
E385
Air Filters - Twin Air Air Flow - FMF Snap
E357-373
E504 E495 E506 E505
E396 E390 E390 E294
Exahust Strap Mounts (FMF) Exhaust Clamps & Sealing
Piston Kits
Airbox - Mini MX Airbox Vents Ball Hones Big End Pins Breather Caps Breather Hoses
- Athena Piston Kits - Namura Piston Kits - Prox Piston Kits - Vertex Piston Kits - Vintco Piston Kits - Wiseco Piston Kits - Wossner Piston Kits Piston Pin Size Chart Pit Bike Engine Parts Power Valve Adjusters
E47-51 E52-59
Exhaust Connectors Exhaust Gaskets
E510-515
E2-11
E85
Exhaust Maintenance & Performance
E503 E505
E60-77 E78-81 E12-28 E29-46
E449 E449 E250
Exhaust Mountings
Exhaust O Ring & Connector Kits
E508-509
Cam Chain Guides Cam Chain Tensioner
Exhaust Packing (FMF)
E497 E507 E496 E506
E248-249 E238-247 E251-256
Exhaust Springs
E82
Cam Chains Camshafts
Exhaust Springs & O Rings (FMF)
E172-173
Exhaust Tape
E112 E113 E112 E472 E350 E480 E351
Carburettor Accessories Carburettor Assemblies Carburettor Needle Clips Carburettor Repair Kits
E451
Exhausts
E483-501 E444-445
Power Valve Adjustment Tools
E406-408
Extended Fuel Mixture Screw
Power Valve Kit
E430
Filter Cages Filter Care
E376 E383 E376 E441 E431
Power-Flo Fuel Taps Powervalve Covers
E409-418
Filter Care - Twin Air
Quick Disconnect Couplings
Carburettor Spares Choke Plunger Kits
E431 E443
Float & Pin Sets
Racing Oil Filters
Float Bowl - Boyesen Float Bowl Gaskets Float Bowl Nuts Float Bowl Screws
Rad Block Reeds - OEM
E397-405 E396-399
Clutch Baskets - ProX Clutch Baskets - Wiseco Clutch Components - Wiseco
E300-301 E298-299 E296-299
E419-428
Rad Valve Blocks
E451 E430
Rocker Arms
E257
Rocket Cover Gaskets
E220-221
Clutch Cover Guard
E334
Float Needles Float Valves FMF Apparel FMF Exhausts
E425-430 E425-430
Rubber Clutch Cushions - Wiseco
E299 E504 E494 E493 E494 E222
Clutch Covers - Boyesen
E330-333 E332-333
Silencer Cores
Clutch Covers - FIR
E497
Silencer Decals (FMF) Silencer End Caps (FMF) Silencer Inserts (FMF) Spark Plug Gaskets
Clutch Cylinder Protectors
E335
E483-492
Clutch Gaskets
E223-231
Free Flo Vent Hoses
E482 E482 E478 E482 E480 E459 E478 E479 E477
Clutch Gaskets - Wiseco Clutch Parts - Mini MX
E297 E327
Fuel Breather
Fuel Filters
Sprocket Seal Kits
E176-179
Clutch Plate Sets
E305-329
Fuel Filters / Cap Vents
Stator Rewinds Super Cooler
E1
Clutch Pressure Plates
E303 E295 E304
Fuel Hose Clips Fuel Injectors Fuel Line Plugs
E339 E294 E294
Clutch Push Rod Bearing & Seal Kits
Tappet Adjusting Screws
Clutch Rubbers
Tappets
Complete Gasket Sets
E200-212
Fuel Lines
Thrust Washers Top Gasket Sets
E85
Con Rod Bearing
E84 E83
Fuel Petcock Tap Mount O-Rings
E200-219 E166-168 E500-501
Con Rod Bearings & Pins
Fuel Pump Modules Fuel Pump Rebuild Kits
E452-454 E455-458
Transmission Bearing Kits
Con Rod Kits
E121-147 E130-131 E132-133 E142-143 E134-141 E128-129 E144-147 E480-481
Universal Exhausts Universal Filter Foam Valve & Spring Kits
- Athena Con Rod Kits - Hotrods Con Rod Kits - Namura Con Rod Kits - Prox Con Rod Kits
Fuel Screws
E446 E482
E395
Fuel Tank Filters - TwinAir
E278-280 E286-287 E281-285 E276-277 E288-293
Fuel Tap Repair Kits
E473-477 E460-472 E460-461 E200-219
Valve Guides Valve Shims
Fuel Taps
- Vintco Con Rod Kits - Wossner Con Rod Kits Connectors, Clamps & Clips
Fuel Taps (Fuel Star)
Valve Spring Kits Valve Stem Seals
Gasket Sets
GY6 Engine Parts
E169
Vintage Filter Cages Water Pump Cooler Kits Water Pump Covers Water Pump Impellers Water Pump Re-Build Kits
E376
Counter Balancer kits
E165
Head & Base Gaskets Header Gaskets Heat Shield (FMF) Hot Start Plunger Kits
E213-219 E510-514
E340-341
Crank / Main Bearings & Seals Crank Bearing & Seal kits Crankshaft Repair & Rebuilding
E148-164 E149-164
E342 E197
E495 E442
E1
E192-196
Crankshaft Tools
E174
Hotcams
E251-255
Water Pump Seals Water Pump Shafts
E191
Crankshafts
E114-120 E114-116
Hour Meters
E516
E197-199
- Hotrods Crankshafts - Prox Crankshafts - Psychic Crankshafts - Vintco Crankshafts - Wiseco Crankshafts - Wossner Crankshafts
Ignition Covers - Boyesen
E336-337
E117 E118 E119 E120 E117 E111 E111
Ignition Covers - FIR Ignition Gaskets Inner Clutch Hubs Intake Holder Kits
E338
E232-237
E296, E302
E447-448
Jets (Dellorto) Jets (Keihin)
E431
Cylinder Head Kits
E432-434
Cylinder Head Service Kits
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 availa Cylinder Re-Boring
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
71-100
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 56-W9850
Piston Rings
Piston Pin
Piston Clips
Small End Bearing
RR 50 Enduro RR 125 Enduro RR 250 Enduro
2005 - 16 40.3mm 2018 - 25 54mm 2013 - 21 66.4mm 2018 - 21 66.4mm 2013 - 17 72mm 2018 - 21 72mm 2021 - 25 72mm 2015 - 17 72mm 2018 - 21 72mm
.130.PX
–
.PX .PX
.PROX
56-0166 56-0174
56-6306
.A.PX
.PX .PX .PX .PX .PX .PX .PX
.PX
.PROX
56-W035
56-R1223 56-R1200 56-R1200 56-R1201 56-R1201 56-R1201 56-R1201
56-783
56-800
.A.PX .A.PX .A.PX .A.PX .A.PX .A.PX .A.PX
.PR .PR
.PX .PX .PX .PX .PX .PX
.PROX .PROX .PROX .PROX .PROX .PROX
56-W9857 56-W9857 56-W9817 56-W6723 56-W6723 56-W9817 56-W6723
56-7924 56-7924
56-0181 56-0181 56-0181 56-0181 56-0181 56-0181
56-8020 56-8020 56-8020 56-8020 56-8020 56-8020
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
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 2011 - 14 88mm 2015 - 26 88mm 2015 - 26 88mm 2010 - 14 95mm 2015 - 26 95mm 2005 - 09 89mm 2005 - 09 89mm 2010 - 14 95mm 2015 - 26 100mm 2012 - 14 100mm 2010 - 11 100mm 2005 - 09 95mm 2005 - 09 95mm
_200.PX
–
–
.PX .PX .PX
– – – – – – – – – – – – – –
56-W029
56-0189 56-0181 56-0181
.A.PX .A.PX .A.PX .A.PX .A.PX
.PX
.PR .PR
56-W9818 56-W9835 56-W9846 56-W9819 56-W9887 56-W178
56-R1202
56-0725 56-0725
.PX
.PR
.PX
56-R1203
56-7970
56-0187
RR 450 Enduro (Std. Comp.)
.A.PX
.PX .PX .PX .PX .PX .PX .PX
.PR .PR .PR
.PX .PX .PX .PX .PX .PX .PX
56-R1204 56-R1204 56-R1203 56-R1205 56-R1205 56-R1206 56-R1206
56-7967 56-7967 56-7970 56-7970 56-7970 56-7958 56-7958
56-0187 56-0187 56-0187 56-0187 56-0187 56-0187 56-0187
(High Comp.)
.B.PX.HI
56-W178
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)
.A.PX .A.PX .A.PX .A.PX .A.PX
56-W9820 56-W6724 56-W9821 56-W9821 56-W4731
.PR .PR
RR 525 Enduro (Std. Comp.) RR 525 Enduro (High Comp.)
+00B.PX
56-W216
*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!
FANTIC 2-Stroke Models
Years
Size
Piston Kit
Piston Rings
Piston Pin
Piston Clips
Small End Bearing
XE 125 XE 125 XX 125 XX 125 XX 250
2021 - 22 54mm 2022 - 26 54mm
.A.PX .A.PX .A.PX .A.PX .A.PX
.PX .PX .PX .PX .PX
.PR .PR .PR .PR
.PX .PX .PX .PX .PX
.PROX .PROX .PROX .PROX
56-W845 56-W899 56-W845 56-W899 56-W742
56-R1266 56-R1266 56-R1266 56-R1266 56-R1259
56-0715 56-0715 56-0715 56-0715 56-0729
56-0174 56-0174 56-0174 56-0174 56-0181
56-814 56-814 56-814 56-814
2021
54mm
2022 - 26 54mm 2022 - 23 66.4mm
.PR
.PX
56-8010
FANTIC 4-Stroke Models
Years
Size
Piston Kit
Piston Rings
Piston Pin
Piston Clips
Small End Bearing
XEF 250 XXF 250 XEF 450 XXF 450
2021 - 25 77mm 2022 - 26 77mm 2022 - 25 97mm
.A.PX .A.PX A.PX A.PX
.PX 56-6500.PR .PX 56-6500.PR
.PX .PX .PX .PX
– – – –
56-W8812 56-W8812 56-W4787 56-W4787
56-R1245 56-R1245 56-R1267 56-R1267
56-0176 56-0176 56-0181 56-0181
PX PX
– –
2022
97mm
GASGAS 2-Stroke Models
Years
Size
Piston Kit
Piston Rings
Piston Pin
Piston Clips
Small End Bearing
2021 - 26 39.5mm 2021 - 26 45mm 2021 - 26 47mm 2021 - 25 54mm
MC 50 MC 65 MC 85 MC 125 MC 150
.A.PX .A.PX .A.PX .A.PX
.PX .PX
.PX .PX .PX .PX .PX .PX .PX .PX .PX .PX
.PROX PROX
56-W802 56-W313 56-W012 56-W035
56-R1246 56-R1248 56-R1227 56-R1223 56-R1277 56-R1207 56-R1200 56-R1200 56-R1201 56-R1201
56-0166 56-0166 56-0170 56-0174 56-0174 56-0181 56-0181 56-0181 56-0181 56-0181
56-6513 56-6307
PX
.PROX .PROX .PROX .PROX
56-821 56-800 56-800 56-802
.PX
.PX
56-783
2025
58mm
.A.PX
PX PX
–
56-W6720
MC/EC/XC 250
1997 - 19 66.4mm 2021 - 24 66.4mm 2022 - 25 66.4mm 2000 - 19 72mm 2021 - 24 72mm
A.PROX .A.PROX .A.PROX
.PR
56-W157 56-W214 56-W214 56-W159
56-781
EC 250
.PX .PX .PX .PX
.PROX .PROX
.PROX .PROX
56-7924 56-7924
56-8020 56-8020
EX/MC 250 EC/XC 300 EC/EX 300
.A.PX
.PR
.PROX
56-781
56-802
.A.PX
.PROX
56-W9984
56-8020
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
Piston Pin
Piston Clips
Small End Bearing
2010 - 15 77mm 2021 - 23 78mm 2024 - 25 81mm 2021 - 23 78mm 2024 - 25 81mm 2021 - 23 78mm 2024 - 25 81mm 2021 - 24 88mm 2021 - 24 88mm 2023 - 25 88mm 2013 - 15 95mm 2013 - 15 95mm 2021 - 23 95mm
.A.PX .A.PX
.PX
.PR
.PX .PX
– – – – – – – – – – – – – – – – –
56-W188 56-W954
56-R1208 56-R1225
56-0718
56-0175 56-0176
.PX 56-6500.PROX
.A.PX
56-W4984 56-W265 56-W4984 56-W265 56-W4984 56-W4735 56-W4735 56-W4735
.A.PX
.PX 56-6500.PROX
.PX
56-R1278
56-0176
.A.PX
.A.PX
.PX 56-6500.PROX
.PX
56-R1278
56-0176
.A.PX
_00A.PX _00A.PX _00A.PX
.PX .PX .PX
.PROX .PROX .PROX
.PX .PX .PX .PX .PX .PX
56-R1202 56-R1202 56-R1202 56-R1209 56-R1209 56-R1203
56-0725 56-0725 56-0725
56-0181 56-0181 56-0181 56-0182 56-0182 56-0185
MC 350F
EC 450F (Std. Comp. 12.5:1)
.A.PX .B.PX .A.PX
.PX 56-0726.PR .PX 56-0726.PR
56-W222 56-W223 56-W956
(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)
.PX
.PROX
56-7959
2024
95mm
.A.PX
56-W4985 56-W956 56-W4985 56-W8816
2021 - 23 95mm 2024 - 26 95mm
.A.PX
.PX
.PROX
.PX
56-R1203
56-7959
56-0185
.A.PX .A.PX
EC 500F
2024
95mm
.PX
.PROX
.PX
56-R1203
56-7959
56-0185
*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 56-W9925 56-W041
Piston Rings
Piston Pin
Piston Clips
Small End Bearing
QR 50
All
.075.PX
–
–
–
–
40.75mm
CR 80 (79cc) CR 80 (82cc)
1986 - 02 46mm 1986 - 02 47mm 2003 - 07 47.5mm 1988 - 91 54mm 1992 - 03 54mm
.PX
.PX
.PR .PR .PR
.PX .PX .PX .PX .PX .PX .PX .PX
.PROX .PROX
56-R1210 56-R1211 56-R1212
56-7930 56-7930 56-7930 56-722 56-722 56-722 56-722
56-0170 56-0170 56-0170 56-0174 56-0174 56-0174 56-0174 56-0176
56-821 56-821
.B.PX .B.PX
.PX
56-W643 56-W833 56-W564 56-W676 56-W840 56-W859 56-W905 56-W614 56-W702 56-W801 56-W860 56-W636 56-W636
CR 85 CR 125 CR 125 CR 125 CR 125 MTX 125 CR 250 CR 250 CR 250 CR 250 CR 480 CR 500
.PX
–
+P0.PX
–
.PR .PR .PR .PR
.PROX .PROX .PROX .PROX
56-8142 56-8142 56-8142 56-8142 56-6373 56-6373 56-6373 56-6373
.A.PX
.PX .PX .00
56-R1239 56-R1240 56-R1213
2004
54mm
+00A.PX
2005 - 07 54mm 1988 - 90 56mm 1986 - 96 66.4mm 1997 - 01 66.4mm 2002 - 04 66.4mm 2005 - 07 66.4mm 1982 - 83 89mm 1982 - 01 89mm
.A.PX .B.PX .A.PX .A.PX
–
–
–
.00 .00 .00 .00 .PX .PX
.PR .PR .PR .PR
.PX .PX .PX .PX
.PROX .PROX .PROX .PROX
56-R1215 56-R1215 56-R1215 56-R1216 56-R1222 56-R1222
56-7924 56-7924 56-7924 56-7924
56-0181 56-0181 56-0181 56-0181
+00A.PX +00A.PX .000.PX .000.PX
–
–
–
.PR
.PX
.PROX
56-0738
56-0187
56-7999
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.
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
E4
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 56-W9822 56-W9822 56-W9852 56-W9823 56-W4915 56-W4924
Piston Rings
Piston Pin
Piston Clips
Small End Bearing
CRF 70 XR 70 XL 125 XL 125 S
2004 - 12 47mm 1997 - 03 47mm 1977 - 83 56.5mm
.000.PX .000.PX .000.PX .000.PX +00A.P +00B.P
– – – –
.PR .PR
.PX .PX
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
56-0706 56-0706
56-0169 56-0169
– –
.PX .PX
56-0174 56-0174
56.5mm
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 2012 - 26 66mm 1980 - 84 65.5mm 1981 - 02 65.5mm 2003 - 19 65.5mm 2008 - 09 65.5mm 2004 - 07 78mm 2004 - 07 78mm 2008 - 09 78mm 2010 - 13 76.8mm 2010 - 13 76.8mm 2014 - 15 76.8mm 2016 - 17 76.8mm 2018 - 19 79mm 2020 - 26 79mm
.PX .PX .PX
.PR .PR .PR
.PX .PX .PX
56-R1214 56-R1214 56-R1214
56-7965 56-7965 56-7965
56-0170 56-0170 56-0170
.B.PX
56-W914
.000.PX .000.PX +000.P +000.P
– – – –
– – – – – – –
– – – –
56-W4156 56-W4156 56-W4816 56-W4816 56-W4829 56-W4829 56-W4829
.A.PX
.PX .PX .PX .PX
.PX .PX
56-R1217 56-R1217 56-R1217 56-R1268
56-0176 56-0176
(High Comp. 13.5:1)
.A.PXH .A.PXH
CRF 250R (Std. Comp. 13.5:1) CRF 250R (Std. Comp. 13.2:1)
.PX .PX .PX .PX
56-0176 56-0176 56-0176 56-0176
.A.PX
.PR .PR .PR .PR
56-W950 56-W950 56-W958
56-7952 56-7952 56-7952 56-7952
(High Comp. 14.2:1)
.A.PX.HC
.PX .PX .PX .PX .PX .PX .PX .PX
56-R1218 56-R1268 56-R1268 56-R1276 56-R1276 56-R1276 56-R1276 56-R1217
CRF 250R (Std. Comp. 13.2:1)
.A.PX
CRF 250R CRF 250R
.A.PX .A.PX .A.PX .A.PX .A.PX .A.PX
.PX .PX
56-W8800 56-W8806 56-W4788 56-W8806 56-W4788 56-W4829 56-W9824 56-W4606 56-W8811 56-W4820 56-W4820 56-W4978
56-0176 56-0175
.PR .PR
56-7952 56-7952
CRF 250R (Std. Comp. 13.9:1)
.PX .PX
56-0175 56-0175
CRF 250RX
2019
79mm
.PR .PR
56-7952 56-7952
2020 - 26 79mm 2004 - 17 78mm 2001 - 12 73mm 1996 - 04 85mm 2019 - 26 96mm 2002 - 03 96mm 2004 - 08 96mm 2009 - 12 96mm 2013 - 16 96mm 2017 - 26 96mm 2002 - 08 99mm 2017 - 26 96mm 2005 - 17 96mm 2019 - 26 96mm 1979 - 82 89mm 1985 - 00 97mm 1993 - 24 100mm 2000 - 07 100mm
CRF 250RX (Std. Comp. 13.9:1) CRF 250X (Std. Comp. 12.9:1) XR 250 Tornado (Std. Comp. 9.3:1)
.PX .PX
56-0175 56-0176
– –
.000.PX +000.P
–
–
XR 400 (Std. Comp. 9.3:1)
.PX .PX .PX .PX .PX .PX .PX
.PR
.PX .PX
56-R1241 56-R1272 56-R1219 56-R1219 56-R1220 56-R1221 56-R1221
56-0737 56-0749
56-0188 56-0185
CRF 450L CRF 450R
.A.PX
.PROX
.A.PX23 .A.PX48
.PR .PR
.PX .PX
56-0731 56-0731
56-0185 56-0185
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)
.A.PX
–
.PX .PX
56-0185 56-0185
.A.PX
.PROX .PROX
56-W916
56-7959 56-7959
.A.PX
.PX .PX
56-W9949 56-W4820 56-W9949 56-W4820 56-W8811 56-W310 56-W4366 56-W4562 56-W4715
56-0185 56-0185
CRF 450R (Big Bore)
_300.PX
–
.PROX .PROX
56-7959 56-7959
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)
.A.PX
.PX .PX .PX
.PX .PX .PX
56-R1221 56-R1219 56-R1272
56-0185 56-0185 56-0185
.A.PX48
.PR
56-0731 56-0749
.A.PX
.PROX
+000.PX .000.PX .000.PX
– – – –
– – – –
–
.PX .PX
56-0195 56-0194
.00B.PX
–
HUSABERG 2-Stroke Models
Years
Size
Piston Kit
Piston Rings
Piston Pin
Piston Clips
Small End Bearing
TE 125 TE 250 TE 300
2012 - 14 54mm 2011 - 14 66.4mm 2011 - 14 72mm
.A.PX
.PX .PX .PX
.PX
.PX .PX .PX
.PROX
56-W035 56-W214 56-W854
56-R1223 56-R1200 56-R1226
56-783
56-0174 56-0181 56-0183
56-800
.A.PROX
– –
.PROX .PROX
56-8020 56-8020
.A.PX
4-Stroke Models
Years
Size
Piston Kit 56-W4730 56-W4734
Piston Rings
Piston Pin 56-0717.PR 56-0717.PR
Piston Clips
Small End Bearing
FE 250 (Std. Comp. 13.2:1)
2013 2013 2014
76mm 76mm 78mm
+00A.P +00A.P
.PX
.PX .PX
– – – – – – – – –
56-R1224
56-0176 56-0176
(High Comp.)
–
FE 250 FE 350 FE 390 FE 450 FE 450 FX 450 FE 501
.A.PX .A.PX
.PX .PX .PX .PX .PX .PX .PX
–
.PX .PX
56-W954 56-W960
56-R1225 56-R1202 56-R1203 56-R1203 56-R1203 56-R1203 56-R1203
56-0176 56-0181
2013 - 14 88mm 2010 - 12 95mm 2009 - 12 95mm 2013 - 14 95mm 2010 - 12 95mm 2013 - 14 95mm
.PR .PR
56-0725 56-7959
.B.PX
.PX .PX
56-W4739
56-0185 56-0185
.A.PX .A.PX .A.PX
.PR .PR
56-W243 56-W968 56-W243
56-7959 56-7959
.PX .PX .PX
56-0185 56-0185 56-0185
.PR .PR
56-7959 56-7959
.B.PX
56-W9847
*Please visit our website for current prices
E-mail: sales@oro2u.com
www.oro2u.com
E5
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
Piston Pin
Piston Clips
Small End Bearing
2017 - 26 39.5mm 2017 - 26 45mm 2014 - 26 47mm 2014 - 26 54mm 2014 - 16 54mm 2017 - 19 54mm 2017 - 20 58mm 2021 - 25 58mm 1998 - 05 66.4mm 1998 - 13 66.4mm 2014 - 26 66.4mm 2014 - 17 66.4mm 2018 - 24 66.4mm 2014 - 16 72mm
TC 50 TC 65 TC 85
.A.PX .A.PX .A.PX .A.PX .A.PX .A.PX
.PX .PX .PX .PX .PX .PX .PX .PX .00 .00 .PX .PX .PX .PX .PX .PX
– – –
–
.PROX .PROX
56-W802 56-W313 56-W012 56-W035 56-W035 56-W035
56-R1246 56-R1248 56-R1227 56-R1223 56-R1223 56-R1223 56-R1277 56-R1277 56-R1215 56-R1215 56-R1200 56-R1200 56-R1200 56-R1226 56-R1201 56-R1201
56-6306 56-6307 56-821 56-800 56-800 56-800 56-800 56-800
.PX .PX .PX .PX .PX .PX .PX .PX
56-0166 56-0170 56-0174 56-0174 56-0174 56-0174 56-0174 56-0181
.PROX .PROX .PROX .PROX .PROX .PROX
TC 125 TE 125 TX 125
.PX .PX .PX
56-783 56-783 56-783
TE 150/150i TE 150/150i
.A.PX
–
56-W6720
.A.PX .A.PX .A.PX
.PROX
56-W053 56-W702 56-W702 56-W214 56-W214 56-W214 56-W854
56-0716 56-7924 56-7924 56-7924 56-7924 56-7924
CR 250 WR 250 TC 250 TE 250 TE 250i TE 300 TE 300 TE 300i TX 300 TX 300i
.PR .PR .PR .PR .PR
.PROX .PROX .PROX .PROX .PROX .PROX
56-8021 56-8021 56-8020 56-8020 56-8020 56-8020
.PX .PX .PX .PX .PX .PX
56-0181 56-0181 56-0181 56-0181 56-0183 56-0181
.A.PROX .A.PROX .A.PROX
.A.PX
– – – –
2017
72mm
.A.PX .A.PX .A.PX .A.PX
.PROX .PROX .PROX .PROX
56-W9947 56-W9984 56-W9947 56-W9984
56-8020 56-8020 56-8020 56-8020
2018 - 25 72mm 2017 - 19 72mm 2020 - 24 72mm
.PX .PX .PX
56-0181 56-0181 56-0181
.PX .PX
56-R1201 56-R1201
HUSQVARNA 4-Stroke Models Years
Size
Piston Kit
Piston Rings
Piston Pin
Piston Clips
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 2016 - 22 78mm 2023 - 26 81mm 2014 - 23 78mm 2024 - 26 81mm 2014 - 15 88mm 2014 - 15 88mm 2016 - 25 88mm 2014 - 16 88mm 2017 - 19 88mm 2020 - 25 88mm 2017 - 25 88mm 2014 - 22 95mm 2023 - 25 95mm 2014 - 19 95mm
.A.PX .A.PX
.PX .PX
56-6500.PROX 56-6500.PROX
.PX .PX
– – – – – – – – – – – – – – – – – – – – – –
56-W954 56-W265
56-R1225 56-R1225
56-0176 56-0176
.A.PX
56-W4984 56-W954 56-W4984 56-W4735 56-W4736 56-W4735
.A.PX
.PX
56-6500.PROX
.PX
56-R1225
56-0176
.A.PX
_00A.PX +00B.PX _00A.PX
.PX .PX .PX .PX .PX .PX .PX .PX
.PR .PR .PR .PR
.PX .PX .PX .PX
56-R1202 56-R1202 56-R1202 56-R1202 56-R1202 56-R1202 56-R1202 56-R1203
56-0725 56-0725 56-0725 56-0725
56-0181 56-0181 56-0181 56-0181
(High Comp. 14.5:1)
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)
.A.PX
56-W960
.A.PX
–
–
56-W9932 56-W4735 56-W4735
_00A.PX _00A.PX
.PROX .PROX .PROX
.PX .PX .PX
56-0725 56-0725 56-7959
56-0181 56-0181 56-0185
.A.PX
56-W956
.A.PX
56-W4985 56-W968 56-W8815 56-W956 56-W4985 56-W956 56-W4985 56-W9847 56-W8816
.A.PX
.PX
.PROX
.PX
56-R1203
56-7959
56-0185
2020
95mm
.A.PX
2015 - 23 95mm 2023 - 25 95mm 2017 - 22 95mm 2023 - 25 95mm 2014 - 19 95mm 2020 - 25 95mm
.A.PX
.PX
.PROX
.PX
56-R1203
56-7959
56-0185
.A.PX
.A.PX
.PX
.PROX
.PX
56-R1203
56-7959
56-0185
.A.PX .B.PX .A.PX
.PX
.PROX
.PX
56-R1203
56-7959
56-0185
*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!
KAWASAKI 2-Stroke Models
Years
Size
Piston Kit
Piston Rings
Piston Pin
Piston Clips
Small End Bearing
KX 60 KX 65
1983 - 04 43mm 2000 - 26 44.5mm 1988 - 00 47mm 1990 - 00 48mm 2001 - 13 48.5mm 2014 - 25 48.5mm 1995 - 13 52.5mm 2014 - 21 52.5mm 2022 - 25 52.5mm 1995 - 97 54mm 1999 - 00 54mm 2001 - 02 54mm 2003 - 08 54mm 1986 - 06 66mm 1992 - 95 67.4mm 1990 - 91 67.4mm 1992 - 04 67.4mm 2005 - 08 66.4mm 1988 - 04 86mm
.A.PX .A.PX 47.PX +A.PX .A.PX
.PX .PX .PX .PX .PX .PX
.PR .PR .PR .PR .PR
.PX .PX .PX .PX .PX .PX
.PROX .PROX
56-W648 56-W752 56-W644 56-W644 56-W782 56-W879 56-W651 56-W651
56-R1228 56-R1229 56-R1230 56-R1231 56-R1232 56-R1233
56-0748 56-0748 56-7988 56-7988 56-7988
56-0166 56-0166 56-0170 56-0170 56-0170 56-0170
56-6308 56-6308 56-823 56-823 56-823 56-823 56-823 56-823 56-823 56-800 56-800 56-800 56-800
KX 80 (79cc) KX 80 (82cc)
.PROX .PROX .PROX .PROX .PROX .PROX .PROX
KX 85 KX 85
.00A.PX
– – – – –
KX 100 KX 100 KX 112 KX 125 KX 125 KX 125 KX 125
.A.PX
–
– – –
.A.PX1 .A.PX1 .D.PX
.PX .PX
56-R1271 56-R1271
56-W651 56-W652 56-W741 56-W783 56-W834 56-W597 56-W607 56-W607
–
.PX .PX .PX .PX .PX
.PROX.KX .PROX.KX .PROX.KX .PROX.KX
56-0174 56-0174 56-0174 56-0174 56-0176
+00D.PX +00B.PX
.PX .PX .PX .PX .PX .PX .PX .PX .PX
.PR .PR .PR
56-R1234 56-R1234 56-R1234 56-R1235 56-R1236 56-R1236 56-R1237 56-R1238 56-R1242
56-0713 56-0713 56-0713
.A.PX
KDX 200
+0A.PX +00B.PX +00B.PX
– – – – – –
.PROX
56-8061
KDX 250 E
–
–
KX 250 KX 250 KX 250 KX 500
.PX .PX .PX
.PROX .PROX .PROX
56-0180 56-0181 56-0181
56-881 56-881 56-881 56-8050
.B.PX .B.PX .A.PX
56-W617 56-W844 56-W575
–
.PROX
KAWASAKI 4-Stroke Models
Years
Size
Piston Kit 56-W4842 56-W4920
Piston Rings
Piston Pin
Piston Clips
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)
2004 - 05 77mm 2006 - 09 77mm
.A.PX .A.PX
.PX .PX .PX .PX
.PR .PR
.PX .PX
– – – – – – – – – – – – – – – – – – – – – – – –
56-R1243 56-R1244 56-R1245 56-R1244
56-7968 56-7968
56-0176 56-0176
2010
77mm
.A.PX .A.PX .A.PX
– – –
.PX .PX
56-W953 56-W952 56-W331
56-0176 56-0176
2011 - 14 77mm 2015 - 16 77mm 2017 - 19 77mm
.PX .PX .PX .PX
.PX .PX
56-R1245 56-R1245 56-R1225 56-R1281
56-0176 56-0175
.A.PX .A.PX .A.PX .A.PX .A.PX .A.PX .A.PX .A.PX .A.PX
56-6500.PROX 56-6500.PROX 56-6500.PROX
56-W8807 56-W8817 56-W8820 56-W4983 56-W8839 56-W8820 56-W4983 56-W8839 56-W4713
2020
78mm
.PX .PX
56-0175 56-0175
2021 - 22 78mm 2023 - 24 78mm 2025 - 26 78mm 2021 - 22 78mm 2023 - 24 78mm 2025 - 26 78mm
.PX .PX .PX .PX .PX
.PX .PX
56-R1281 56-R1281 56-R1281 56-R1281 56-R1281
56-0175 56-0175
KX 250 (Comp. 14.0:1)
KX 250X (Std. Comp. 14.1:1) KX 250X (Std. Comp. 14.1:1)
56-6500.PROX
.PX .PX
56-0175 56-0175
KX 250 (Comp. 14.0:1)
.PX .PX
56-0175 56-0187
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 450 (Std. Comp. 12.5:1) KX 450X (Std. Comp. 12.5:1) KX 450 (Std. Comp. 12.5:1) KLX 450R (Std. Comp. 12.0:1)
2003
90mm
–
–
2006 - 08 96mm 2009 - 12 96mm 2013 - 14 96mm
.A.PX
.PX .PX .PX .PX .PX .PX
.PR .PR
.PX .PX
56-W212
56-R1219 56-R1221 56-R1221 56-R1221 56-R1221 56-R1221
56-0731 56-7959
56-0185 56-0185
.A.PX
56-W4980
.A.PX .A.PX .A.PX
.PR .PR .PR
.PX .PX
56-W965 56-W330 56-W965
56-7959 56-7959 56-7959
56-0185 56-0185
2015
96mm
2016 - 18 96mm 2019 - 23 96mm 2024 - 26 96mm 2021 - 23 96mm 2024 - 26 96mm 2008 - 21 96mm
.PX .PX
56-0185 56-0185
.A.PX .A.PX .A.PX .A.PX
–
56-W8809 56-W4098 56-W8809 56-W4098
.PX
56-0185
.PX .PX
56-0185 56-0185
.A.PX
.PX
.PR
56-W212
56-R1219
56-0731
*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!
KTM 2-Stroke Models
Years
Size
Piston Kit
Piston Rings
Piston Pin
Piston Clips
Small End Bearing
50 Adventure
2002 - 08 39.5mm 2001 - 08 39.5mm 2009 - 26 39.5mm 1997 - 99 43.5mm 2000 - 08 45mm 2009 - 26 45mm 2003 - 26 47mm
.A.PX .A.PX .A.PX .A.PX .A.PX .A.PX .A.PX .A.PX .A.PX .A.PX .A.PX .A.PX .A.PX .B.PX
.PX .PX .PX .PX .PX .PX .PX .PX .PX .PX .PX .PX .PX .PX .PX
.PX .PX
–
56-W803 56-W803 56-W802 56-W312 56-W746 56-W313 56-W012 56-W740 56-W010 56-W035 56-W740 56-W035 56-W035 56-W036
56-R1246 56-R1246 56-R1246 56-R1247 56-R1248 56-R1248 56-R1227 56-R1249 56-R1250 56-R1223 56-R1249 56-R1223 56-R1223 56-R1251 56-R1277
56-0166 56-0166
50 SX 50 SX 60 SX 65 SX 65 SX 85 SX
.PROX .PROX
56-6306 56-6306
– – – – –
–
.PX .PX
.PROX .PROX .PROX
56-0166 56-0166
56-6307 56-6307 56-6307 56-821 56-800 56-800 56-800 56-800 56-800
.PX .PX
56-0166 56-0170
.PROX .PROX .PROX .PROX .PROX .PROX
.PX .PX .PX .PX .PX .PX
.PX .PX .PX .PX .PX .PX
125 SX 125 SX 125 SX
1994 - 00
56-783
56-0174
54.25mm
2001 - 06 54mm 2007 - 26 54mm
56-783 56-783 56-783 56-783 56-783
56-0174 56-0174 56-0174 56-0174 56-0174 56-0174
125 EXC 125 EXC 125 XC-W
1994 - 00
54.25mm
2001 - 16 54mm 2017 - 19 54mm
–
144 SX
2008 2020
56mm 58mm
– – – –
.PX .PX
.PROX .PROX
56-800 56-800
150 EXC TPi 150 EXC TPi
.A.PX
56-W6720
56-0174
2021 - 24 58mm 2009 - 15 56mm 2016 - 22 58mm
.A.PX .B.PX
–
–
–
56-W053 56-W036
150 SX 150 SX 150 SX
.PX .PX .PX
.PX
.PROX .PROX .PROX .PROX .PROX
56-R1251 56-R1277 56-R1277
56-0174
56-800 56-800 56-800 56-800 56-820 56-8020 56-8020 56-8020 56-8020 56-8020 56-8020 56-8020 56-8020 56-8020 56-8020
.A.PX .A.PX .A.PX
.PX .PX .PX
– – –
56-W6720 56-W6720 56-W6720
56-0601 56-0601 56-0601 56-0724 56-7924 56-7924 56-0724
2025
58mm
150 XC-W 200 EXC
2017 - 19 58mm 1998 - 16 64mm 1996 - 99 67.5mm 2000 - 02 66.4mm 2003 - 26 66.4mm 1996 - 99 67.5mm 2000 - 05 66.4mm 2006 - 17 66.4mm 2018 - 24 66.4mm 2014 - 17 66.4mm 1996 - 03 72mm 2004 - 16 72mm
–
.A.PX .B.PX .D.PX
.PX
–
.PX .PX .PX .PX .PX .PX .PX .PX .PX .PX
56-W770 56-W694 56-W774 56-W214 56-W694 56-W753 56-W214 56-W214 56-W214 56-W712 56-W854
56-R1252
56-0176 56-0183 56-0181 56-0181 56-0183 56-0181 56-0181 56-0181 56-0181 56-0181
250 SX 250 SX 250 SX
–
.PR .PR .PR .PR
.PROX .PROX .PROX .PROX .PROX .PROX .PROX .PROX .PROX .PROX
.PX .PX
56-R1253 56-R1200
.A.PROX
250 EXC 250 EXC 250 EXC
.B.PX
–
.B.PROX .A.PROX .A.PROX .A.PROX +00A.PX
.PX .PX .PX .PX .PX .PX .PX .PX .PX
.PR
56-R1207 56-R1200 56-R1200 56-R1200 56-R1201 56-R1226 56-R1201 56-R1201 56-R1201
56-781
.PR .PR .PR
56-7924 56-7924 56-7924
250 EXC / TPI 250 R Freeride
300 EXC 300 EXC 300 EXC
– – – – –
.A.PX
.PX .PX
56-0183 56-0181
2017
72mm
.A.PX .A.PX .A.PX
–
56-W9947 56-W9984 56-W9984
300 EXC TPI
2018 - 24 72mm 2023 - 26 72mm 1996 - 97 78mm 1998 - 02 78mm
.PX .PX .PX .PX
.PROX .PROX .PROX .PROX
56-0181 56-0181 56-0181 56-0181
56-8020 56-8020 56-8020 56-8020
300 SX
360 SX/EXC 380 SX/EXC
+00C.PX +00C.PX
– –
.PR .PR
56-W747 56-W748
56-7905 56-7905
*Please visit our website for current prices E8
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 56-W4730 56-W4730 56-W4734
Piston Rings
Piston Pin
Piston Clips
Small End Bearing
250 EXC-F (Std. Comp. 12.8:1)
2007 - 11 76mm 2012 - 13 76mm 2007 - 13 76mm 2014 - 23 78mm 2024 - 26 81mm 2018 - 20 78mm 2006 - 12 76mm 2006 - 12 76mm 2013 - 15 78mm 2016 - 22 78mm 2023 - 26 81mm 2023 - 26 81mm 2012 - 16 88mm 2017 - 19 88mm 2020 - 24 88mm 2011 - 15 88mm 2011 - 15 88mm 2016 - 19 88mm 2020 - 26 88mm 2012 - 17 88mm 2009 - 11 95mm 2003 - 07 89mm 2003 - 07 89mm 2008 - 11 95mm 2012 - 16 95mm 2017 - 20 95mm 2004 - 07 95mm 2004 - 07 95mm 2008 - 12 97mm 2008 - 12 97mm 2013 - 14 95mm 2021 - 22 95mm 2023 - 24 95mm 2003 - 06 95mm 2003 - 06 95mm 2007 - 12 97mm 2007 - 12 97mm 2013 - 19 95mm 2020 - 22 95mm 2023 - 26 95mm 2012 - 16 95mm 2017 - 19 95mm 2020 - 24 95mm 2000 - 02 95mm 2000 - 02 95mm 2003 - 07 95mm 2003 - 07 95mm 1994 - 97 101mm 1998 - 01 101mm 2002 - 07 101mm
+00A.P +00A.P +00A.P
.PX .PX .PX .PX .PX .PX .PX .PX
.PROX .PROX .PROX
.PX .PX .PX
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
56-R1224 56-R1224 56-R1254 56-R1225 56-R1225 56-R1224 56-R1254 56-R1225
56-7931 56-7931 56-7931
56-0176 56-0176 56-0176
(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)
.A.PX
–
–
56-W954
.A.PX
56-W4984 56-W954 56-W4730 56-W4734
.A.PX
56-6500.PROX
.PX .PX .PX .PX
56-0176 56-0176 56-0176 56-0176
+00A.P +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) 250 XC-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)
.A.PX .A.PX
56-6500.PROX 56-6500.PROX
56-W954 56-W265
.PX
.PX
56-R1225
56-0176
.A.PX .A.PX
56-W4984 56-W4984 56-W960 56-W9932 56-W4735 56-W4735 56-W4736 56-W4735 56-W4735
.A.PX
.PX .PX .PX .PX .PX .PX .PX .PX
.PROX .PROX .PROX
.PX .PX
56-R1202 56-R1202 56-R1202 56-R1202 56-R1202 56-R1202 56-R1202 56-R1202
56-0725 56-0725
56-0181 56-0181
.A.PX
_00A.PX _00A.PX _00B.PX _00A.PX _00A.PX
.PX .PX .PX .PX
56-0725 56-0725 56-0725 56-0725
56-0181 56-0181 56-0181 56-0181
.PR .PR .PR .PR
(High Comp. 14.5:1)
350 SX-F (Std. Comp. 14.0:1)
(Std. Comp. 14.2:1)
.PX .PX
56-0725 56-0725 56-7959
56-0181 56-0181
350 Freeride (Std. Comp. 12.3:1) 400 EXC (Std. Comp. 11.1:1) 450 EXC-R (Std. Comp. 11.0:1)
.A.PX
.PR .PR
56-W960
.B.PX
.PX .PX .PX .PX .PX .PX .PX .PX
.PX .PX
56-W4739
56-R1203 56-R1204 56-R1204 56-R1203 56-R1203 56-R1203 56-R1206 56-R1206
56-0185 56-0187
.A.PX
– –
56-W178 56-W178 56-W243 56-W968 56-W968
(High Comp. 12.0:1)
.B.PX.HI
.PX .PX
56-0187 56-0185
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)
.A.PX .A.PX .A.PX
.PR .PR .PR
56-7959 56-7959 56-7959 56-7958
.PX .PX .PX .PX
56-0185 56-0185 56-0187 56-0187
.B.PX .B.PX
56-W4805 56-W4806
(High Comp. 13.0:1)
56-7958 56-7959 56-7959 56-7959
450 SM-R (Std. Comp. 12.5:1)
.B.PX .A.PX .A.PX .A.PX
.PX .PX .PX .PX .PX .PX .PX .PX .PX .PX
.PR .PR .PR .PR
.PX .PX .PX .PX
56-W107 56-W244 56-W956 56-W956
56-R1255 56-R1255 56-R1203 56-R1203 56-R1206 56-R1206 56-R1255 56-R1255 56-R1203 56-R1203
56-0185 56-0185 56-0185 56-0185
(High Comp. 13.5:1)
450 SM-R (Std. Comp. 12.6:1)
450 SM-R 450 SM-R
56-7959
.A.PX .B.PX .B.PX
56-W4985 56-W4805 56-W4806
450 SX (Std. Comp. 12.0:1)
.PX .PX .PX .PX .PX .PX
56-7958 56-7958 56-7959 56-7959 56-7959 56-7959
56-0187 56-0187 56-0185 56-0185 56-0185 56-0185
(High Comp. 13.0:1)
450 SX-F (Std. Comp. 12.5:1)
.B.PX .A.PX .A.PX .A.PX
.PR .PR .PR .PR
56-W107 56-W244 56-W956 56-W956
(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)
.A.PX .B.PX .B.PX .A.PX .A.PX
56-W4985 56-W9847 56-W9847 56-W8816 56-W4731
.PX .PX .PX .PX .PX .PX .PX
.PR .PR
.PX .PX
56-R1203 56-R1203 56-R1203 56-R1206 56-R1206 56-R1206 56-R1206
56-7959 56-7959 56-7959 56-7958 56-7958 56-7958 56-7958
56-0185 56-0185
.PROX
.PX .PX .PX .PX
56-0185 56-0187 56-0187 56-0187
(High Comp. 12.5:1)
+00B.PX
56-W216
525 SX/EXC (Std. Comp. 11.0:1)
.A.PX
56-W4731
(High Comp. 12.5:1)
+00B.PX .A.PROX .A.PROX
.PX .PX
56-W216 56-W181 56-W181
56-0187 56-0193
620 LC4, Duke (Std. Comp. 11.7:1)
– – – – – – – –
– – – –
620 SC (Std. Comp. 11.7:1) 620 SXC (Std. Comp. 11.7:1)
.PX
56-0193
.A.PROX .A.PROX
.PX .PX
56-W181 56-W181
56-0193 56-0193
640 LC4, Duke II (Std. Comp. 11.7:1) 1998 - 07 101mm
690 Enduro/R (Std. Comp. 11.8:1) 690 Supermoto (Std. Comp. 11.8:1)
2008 - 11 102mm 2007 - 09 102mm 2008 - 11 102mm
.B.PX .B.PX .B.PX .B.PX
.PR .PR
.PX .PX
56-W9831 56-W9831 56-W9831 56-W9833
56-0736 56-0736
56-0187 56-0187
690 SMC (Std. Comp. 11.8:1)
.PR .PR
.PX .PX
56-0736 56-0742
56-0187 56-0193
990 Adventure/R (Std. Comp. 11.5:1) 2009 - 12 101mm
*Please visit our website for current prices
E-mail: sales@oro2u.com
www.oro2u.com
E9
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