09106897 PISTON KIT KX250 77.97MM B

Name: PROX PISTON KIT KX250 77.97MM B
Brand: PROX
SKU: 09106897
Price: 148.58 GBP
Availability: InStock

Fits 2 bikes

RRP £185.72 Save 20%

£148.58

incl. VAT

In stock — ships in 3 working days

Usually dispatched within 3 working days.

Part #: 09106897

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§ 02 / About this part

What it is

The PROX PISTON KIT KX250 77.97MM B, motocross part. Stocked by Iron Offroad, the UK MX hard parts specialist.

This B-grade piston kit is designed for a cylinder that has seen use and requires a specific diameter to maintain correct tolerances. It replaces the original component to restore engine compression and power. The kit contains the piston, rings, gudgeon pin, and circlips. Regular replacement is vital for high-revving engines to prevent ring failure or piston skirt wear. Verify your cylinder bore measurement matches the 77.97mm specification. Ensure the ring end gap is within the service limit before final assembly. Use a new small-end bearing for a complete top-end service.

§ 03 / Specs

The numbers

Brand: PROX
Part number: 09106897
Weight: 0.23 kg
VAT: 20%

// Fitment

Will it fit your bike?

Fits 2 models · 2 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 — 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.