All Balls Racing - Air Cut off Valve Rebuild Kit (46-1017) Supplier-Supersprox Optimized tire profile provides a

Optimized tire profile provides a smooth transition to the shoulder through turns

It is supplied with two carbon fiber heat shields: the lower carbon detail integrates seamlessly with the sinuous contours of the header pipes

new tread pattern utilizes a 10% higher land ratio in the middle of the tread on the rear tire to reduce heat generation

This model is mounted on KTM 250SX - 250XC - 300XC only

All Balls Racing - Air Cut off Valve Rebuild Kit (46-1017) Supplier-Supersprox Optimized tire profile provides aKit Includes all necessary parts to rebuild the air cut off valve circuit. Models with multiple carburetors include components to repair all carburetors. Kit includes necessary o rings, diaphragm, spring, screws. Improperly functioning air cut off valves can stick open or closed causing popping on deceleration or poor running conditions.