09261429 VALVE AND SPRING EXHAUST KIT

Name: PROX VALVE AND SPRING EXHAUST KIT
Brand: PROX
SKU: 09261429
Price: 115.29 GBP
Availability: InStock

Fits 2 bikes

RRP £144.11 Save 20%

£115.29

incl. VAT

In stock — ships in 3 working days

Usually dispatched within 3 working days.

Part #: 09261429

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§ 02 / About this part

What it is

The PROX VALVE AND SPRING EXHAUST KIT, motocross part. Stocked by Iron Offroad, the UK MX hard parts specialist.

This kit provides a complete refresh for your exhaust circuit. It includes both the valve and a matched spring set. Using matched springs ensures correct seat pressure and prevents valve float at high RPM. This is a common upgrade when converting from titanium to steel for better longevity. Install these during a top-end overhaul to maintain engine compression. Ensure the valve guides are within spec before fitting. It is a model-specific fitment designed for the rigours of MX and enduro.

§ 03 / Specs

The numbers

Brand: PROX
Part number: 09261429
Weight: 0.14 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.