Hot Cams 04-08 400 DVX/02-16 CRF 450 R 1.750mm Shim Kit - 5 Pack

When you're rebuilding the top end of your 400 DVX or CRF 450 R, getting the valve lash just right is critical for performance and engine health. This shim kit from Hot Cams gives you the precise components needed to set your valve clearances accurately. Each shim in the kit is made from 4140 cold rolled steel, a material chosen for its strength and consistent hardness, ensuring they hold their size and shape under the heat and pressure of engine operation.

This particular kit includes 1.750mm shims, and you get a pack of five, offering a good selection for common adjustments. Using these shims is a more affordable way to get your valve train back in spec compared to buying individual OEM parts. Having a selection on hand is always a good idea when working on these engines, as you never know exactly what size you'll need until you measure the clearance.