ORO2U Dirt Catalogue - Section E - Engine and Performance.

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 56-R1266.PX 56-R1266.PX 56-R1266.PX 56-R1259.PX

Piston Pin 56-0715.PR 56-0715.PR 56-0715.PR 56-0729.PR

Piston Clips 56-0174.PX 56-0174.PX 56-0174.PX 56-0181.PX

Small End Bearing

XE 125 XX 125 XX 125 XX 250

2021 - 22 54mm 56-W845.A.PX

56-814.PROX 56-814.PROX 56-814.PROX 56-8010.PX

2021

54mm 56-W845.A.PX

2022 - 25 54mm 56-W899.A.PX 2022 - 23 66.4mm 56-W742.A.PX

FANTIC 4-Stroke Models

Years

Size

Piston Kit

Piston Rings 56-R1245.PX 56-R1245.PX 56-R1267.PX 56-R1267.PX

Piston Pin 56-6500.PR 56-6500.PR

Piston Clips 56-0176.PX 56-0176.PX 56-0181.PX 56-0181.PX

Small End Bearing

XEF 250 XXF 250 XEF 450 XXF 450

2021 - 23 77mm 56-W8812.A.PX 2022 - 23 77mm 56-W8812.A.PX 2022 - 23 97mm 56-W4787.A.PX

– – – –

– –

2022

97mm 56-W4787.A.PX

GASGAS 2-Stroke Models

Years

Size

Piston Kit

Piston Rings 56-R1246.PX 56-R1248.PX 56-R1227.PX 56-R1223.PX 56-R1277.PX 56-R1207.PX 56-R1200.PX 56-R1200.PX 56-R1200.PX 56-R1201.PX 56-R1201.PX

Piston Pin

Piston Clips 56-0166.PX 56-0166.PX 56-0170.PX 56-0174.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

2021 - 25 39.5mm 56-W802.A.PX 2021 - 25 45mm 56-W313.A.PX 2021 - 24 47mm 56-W012.A.PX 2021 - 25 54mm 56-W035.A.PX

MC 50 MC 65 MC 85 MC 125 MC 150

56-6513.PROX 56-6307.PROX 56-821.PROX 56-800.PROX 56-800.PROX 56-802.PROX 56-8020.PROX 56-8020.PROX 56-8020.PROX 56-802.PROX 56-8020.PROX

56-783.PX

2025

58mm 56-W6720.A.PX

MC/EC/XC 250

1997 - 19 66.4mm 2021 - 24 66.4mm 2022 - 25 66.4mm 2022 - 25 66.4mm

56-W157.A.PROX 56-W214.A.PROX 56-W214.A.PROX 56-W214.A.PROX

56-781.PR

EC 250 EX 250 MC 250

56-7924.PROX 56-7924.PROX 56-7924.PROX

EC/XC 300 EC/EX 300

2000 - 19 72mm 56-W159.A.PX 2021 - 24 72mm 56-W9984.A.PX

56-781.PR

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 2024 - 25 81mm 56-W4984.A.PX 2021 - 24 88mm 56-W4735_00A.PX 2021 - 24 88mm 56-W4735_00A.PX 2023 - 25 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-R1278.PX

56-6500.PROX

56-0176.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 2024 - 25 95mm 56-W4985.A.PX

56-R1203.PX

56-7959.PROX

56-0185.PX

EC 500F

2024

95mm 56-W8816.A.PX

56-R1203.PX

56-7959.PROX

56-0185.PX

*Please visit our website for current prices

E-mail: sales@oro2u.com

www.oro2u.com

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