VERTEX PISTON KIT REPLICA Ø 48.00 B

§ 01 / Part

09100941 PISTON KIT REPLICA Ø 48.00 B

Fits 4 bikes
£98.50 Save 15%
£83.73

incl. VAT

In stock — ships in 3 working days

Usually dispatched within 3 working days.

Part #: 09100941

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VERTEX

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§ 02 / About this part

What it is

The VERTEX PISTON KIT REPLICA Ø 48.00 B, top end. Stocked by Iron Offroad, the UK MX hard parts specialist.

This cast piston serves as a direct replacement for OEM part 12110-03B20-0F0. It is designed to match factory tolerances and thermal expansion rates for reliable performance. Sized at 48.00mm (B), it is ideal for cylinders that have seen moderate use and require a slightly larger diameter to maintain correct skirt clearance. Regular top-end swaps prevent ring failure and cylinder wall damage. When fitting, check that the ring gaps are staggered correctly and the circlips are fully seated in their grooves. This kit provides the piston, rings, pin, and clips.

§ 03 / Specs

The numbers

Brand
VERTEX
Part number
09100941
Category
Top End
Weight
0.13 kg
OEM cross-refs
12110-03B20-0F0
VAT
20%

// Fitment

Will it fit your bike?

Fits 4 models · 4 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