PX2500 PISTON KIT ALUMINUM 85.00MM STANDARD

Name: PROX PISTON KIT ALUMINUM 85.00MM STANDARD
Brand: PROX
SKU: PX2500
Price: 121.05 GBP
Availability: InStock

Fits 3 bikes

RRP £151.31 Save 20%

£121.05

incl. VAT

In stock — ships in 3 working days

Usually dispatched within 3 working days.

Part #: PX2500

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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

Honda 3 models

* 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 — a UK shop for motocross, enduro, and trail-bike hard parts. Every fitment lives on the site, listed against KTM, Husqvarna, GasGas, Yamaha, Honda, Kawasaki, Suzuki, and Beta. Pick your bike on the timing-tower. Our USP is the data: fully enriched fitment so you find the right part for your bike quickly and get it fitted accurately. 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 and e-moto only. We operate from our storage facility in Leeds. Iron Offroad is a trading name of Iron Stable Ltd, registered in Mildenhall — Company No. 17061294. The business has a rich motorcycle history across multiple moto brands — the photos show where we came from — and recently pivoted into hard parts and online retail.