Made from 4140 cold rolled steel, Hot Cams shim kits and refill packs make the perfect addition to any toolbox for keeping any valvetrain in perfect working order.

Complete kits are available in 7.48mm and 9.48mm for modern Japanese 250 and 450Fs, KTMs using 8.90 and 10.0mm shims as well many popular Japanese street bikes.

Should you start running low, Hot Cams also offers all of their shims in a variety of convenient refill packs.