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
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