PROX PISTON KIT ALUMINUM 85.00MM STANDARD

§ 01 / Part

PX2500 PISTON KIT ALUMINUM 85.00MM STANDARD

Fits 3 bikes
£152.99 Save 15%
£130.04

incl. VAT

In stock — ships in 3 working days

Usually dispatched within 3 working days.

Part #: PX2500

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PROX

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§ 02 / About this part

What it is

The PROX PISTON KIT ALUMINUM 85.00MM STANDARD, motocross part. Stocked by Iron Offroad, the UK MX hard parts specialist.

This piston kit is a direct replacement for OEM part 13101-KCY-670. It sits in the cylinder and restores compression to your top-end. The standard 85.00mm size is for cylinders within factory specifications. Replace your piston when the skirt clearance exceeds workshop limits or after a set number of hours. This kit includes the piston, rings, pin, and clips. Professional measurement of your cylinder is required to confirm this fitment. It ensures your bike returns to factory power levels with a reliable seal and consistent performance.

§ 03 / Specs

The numbers

Brand
PROX
Part number
PX2500
Weight
0.44 kg
OEM cross-refs
13101-KCY-670
VAT
20%

// Fitment

Will it fit your bike?

Fits 3 models · 3 year-bands

* Fitment data is provided as a guide. Verify compatibility against the bike's owner's manual or service handbook before ordering. Iron Offroad accepts no liability for incorrect application. Full terms and conditions apply.

§ 05 / About Iron Offroad

Iron Offroad

Iron Offroad is the off-road sibling of Iron City and Iron stable — this is a UK shop for motocross, enduro, and trail-bike hard parts. All fitments live on the site, and listed against MX models KTM, Husqvarna, GasGas, Yamaha, Honda, Kawasaki, Suzuki, and Beta. Pick your bike on the timing-tower. Our USP is in the data, fully enriched to assist with accurate fitting and finding the right part for your bike quickly and easily. Brands you'd find on a paddock workbench; pads, sprockets, plastics, fork seals, cables, gaskets, bars, the things that actually wear out. Road-bike kit, scooter parts, and quad gear sit elsewhere. Dirt & e-moto only. We operate from our huge storage facility in Leeds. Iron Offroad is a trading name of Iron Stable Ltd, registered in Mildenhall — Company No. 17061294. We have a RICH motorcycle history with multiple moto brands the images showing where we came from and our history, the business recently pivoted into hard parts and online retail.
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Free UK shipping over £100 14-day no-quibble returns OEM-grade parts only UK-based support · 9 to 5 Race-shop prices, paddock service Click & collect from Leeds
Free UK shipping over £100 14-day no-quibble returns OEM-grade parts only UK-based support · 9 to 5 Race-shop prices, paddock service Click & collect from Leeds