USE Seat Post Shim - Aluminium - 25.0 mm ID

Suitable for use with USE RX posts as well as other 25.0 mm seat posts. Made from aluminium (also available in thermo plastic). The USE shim system is made to 100mm length, longer than other shims on the market. This gives your seat post much better support inside the frame. Designed with a "top lip" to stop shim sliding into the frame. ID ( Inside diameter) = 25.0mm. OD (overall diameter) = 25.4mm - 27.2mm.