Bike Seat Post Shim Reducing Sleeve Extended 100mm Long Conversion Converter for Mountain BMX

Description:

- Bike Seatpost Adapter Shim: Made of aluminum alloy material, durable.

- Function: Change seat post size easily with this bushing without changing seatpost.

- Convenient: No other tools needed, provide convenience for your use.

- Application: Suitable for mountain bike, road bike, , , BMX. 

Note: Please check bike frame seat tube outside diameter. Measure the inside diameter of your old clamp. Or measure the outside diameter of seat tube (on your bike frame). 

Specification: Material: Aluminum Alloy Size Chart: Length 10cm/3.94inch

Package Includes: 1 Seatpost Shim