ProX 29.890248 Valve Shim KTM 8.90mm x 2.48mm - 5 Pack

The ProX 29.890248 is a precision-engineered replacement valve shim designed for KTM dirt bike, off-road, and powersports applications. With an outer diameter of 8.90mm and a thickness of 2.48mm, this shim is sold as a pack of five (5 pcs.), providing enough quantity for a full valve adjustment service.

Valve shims are critical valvetrain components used to set precise valve clearances during engine maintenance. Worn or out-of-spec shims can lead to improper valve lash, reduced engine performance, and accelerated wear — making quality replacement shims essential at every valve check interval.

Key Features:

• Premium materials — manufactured to OEM-equivalent quality standards for reliable long-term performance
• Specific heat-treatment — ensures proper hardness for maximum durability and reduced wear over time
• Precision machined — ground to exact size tolerances to ensure accurate valve clearance settings
• KTM application — 8.90mm outer diameter shims designed for KTM dirt bikes and powersports models
• Pack of 5 — convenient refill kit quantity, ideal for single-bike valve service or shop stock
• Dimensions: 8.90mm outer diameter x 2.48mm thickness

ProX Racing Parts valve shims are available in a full range of thicknesses from 1.20mm up to 3.50mm, incremented by 0.025mm, making it easy to dial in exact valve clearances. The 8.90mm diameter shims are specific to KTM applications. Complete assortment boxes and individual refill kits are both available to suit shop and DIY needs.