The USE shim system allows you to fit a post into virtually any frame size. Our shims are made to 100mm length and are longer than other shims on the market. This gives your seatpost much better support inside the frame. All shims are designed with a "top lip" to stop shim sliding into the frame.
The Aluminium shims are machined to very high tolerances from 6082 T6 Aluminium and then black anodised to protect from corrosion.
Buy USE Components from Chain Reaction Cycles, the World's Largest Online Bike Store.