VERTEX PISTON KIT TOP END Ø 48.50 B

§ 01 / Part

09104370 PISTON KIT TOP END Ø 48.50 B

Fits 2 bikes
RRP £152.46 Save 20%
£121.97

incl. VAT

In stock — ships in 3 working days

Usually dispatched within 3 working days.

Part #: 09104370

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VERTEX

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§ 02 / About this part

What it is

The VERTEX PISTON KIT TOP END Ø 48.50 B, motocross part. Stocked by Iron Offroad, the UK MX hard parts specialist.

This B-size kit is the standard replacement for cylinders showing initial signs of wear. It restores the tight tolerances required for maximum compression and throttle response. Regular top-end maintenance is the best way to avoid catastrophic engine failure on the track. This kit includes the piston, rings, gudgeon pin, and circlips. Measure your bore with a micrometer to confirm the B-size is appropriate for your cylinder. Ensure the ring gaps are positioned correctly over the locating pins during assembly. Always check your squish clearance after installing a new piston kit.

§ 03 / Specs

The numbers

Brand
VERTEX
Part number
09104370
Weight
0.34 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.
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Free UK shipping over £100 14-day no-quibble returns OEM-grade parts only UK support · Tue–Fri 9–5, Sat 9–4 Race-shop prices, paddock service Collection from Leeds by arrangement
Free UK shipping over £100 14-day no-quibble returns OEM-grade parts only UK support · Tue–Fri 9–5, Sat 9–4 Race-shop prices, paddock service Collection from Leeds by arrangement