Vertex Piston Kit Ø66.40 D 09102269 for Fantic XX250 2022-25 Yamaha YZ250 1999-2024 WR250 2016 YZ250X 2016-24

Name: Vertex Piston Kit Ø66.40 D 09102269 for Fantic XX250 2022-25 Yamaha YZ250 1999-2024 WR250 2016 YZ250X 2016-24
Brand: VERTEX
SKU: 09102269
Price: 120.27 GBP
Availability: InStock

Fits 4 bikes

RRP £150.34 Save 20%

£120.27

incl. VAT

In stock — delivered in 6–10 working days

Dispatched in 2–3 working days · delivered in 6–10.

Part #: 09102269

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§ 02 / About this part

What it is

Vertex piston kit Ø66.40 D to fit Fantic XX250 (2022–2025); Yamaha WR250 (2016); Yamaha YZ250 (1999–2024); Yamaha YZ250X (2016–2024).

Refresh your engine with this precision-cast assembly. This component sits at the heart of the bore, converting combustion into drive. These require replacement when skirts wear thin or ring tension drops, causing compression loss. This package includes the crown, rings, gudgeon pin, and circlips. Pay close attention to the sizing letter. These increments allow you to maintain tight tolerances as your cylinder wears over time. Ensure the arrow on the crown points toward the exhaust port during assembly. Check your ring end gap before final installation to ensure correct compression on the track or trail.

§ 03 / Specs

The numbers

Brand: VERTEX
Part number: 09102269
Category: Top End
Weight: 0.32 kg
VAT: 20%

// Fitment

Will it fit your bike?

Fits 4 models · 4 year-bands

Fantic 1 model

XX 250 2022–2025

Yamaha 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.