Problem Solvers 4mm Seatpost Shim, 30.9 Seatpost to 34.9, Black
The Problem Solvers Seatpost Shim is what you need when your seatpost is a little too small-diameter to fit tightly into your frame. It’s made of light, durable aluminum and has a lip on the top so it won’t slide down inside the frame during installation.
- Length is 97mm with a 3mm lip totaling 100mm
- Thickness: 4mm