§ 01 / Part
Boyesen Carbon Fibre RAD Valve RAD11 for Kawasaki KX125F 1988 KX125G 1989 KX125H 1990–1991
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Dispatched in 2–3 working days · delivered in 6–10.
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§ 02 / About this part
What it is
Boyesen carbon fibre RAD valve to fit Kawasaki KX125F (1988); Kawasaki KX125G (1989); Kawasaki KX125H (1990–1991).
This reed valve system replaces the entire OEM intake block to improve airflow velocity. It sits directly between your carburettor and the cylinder. The carbon fiber petals react faster than standard versions to sharpen throttle response across the rev range. Over time, petals can chip or lose tension, leading to difficult starting and a muddy bottom-end. This is a model-specific fitment designed to optimise the intake tract of your 2-stroke engine. Always use fresh gaskets during installation to prevent air leaks. It is a vital upgrade for any top-end rebuild or performance tuning.
§ 03 / Specs
The numbers
- Brand
- BOYESEN
- Part number
- RAD11
- Category
- Top End
- Weight
- 0.47 kg
- VAT
- 20%
// Fitment
Will it fit your bike?
Fits 3 models · 3 year-bands
Kawasaki 3 models
No matches. Try a different make or model.
* 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
// Related
