Fits 27.2 mm seatposts to any frame inner diameter for maximum compatibility
Thin 3 mm lip and 97 mm length for minimal added weight and precise fit
Durable carbon construction for long-lasting performance
Easy installation and removal without tools or grease
Available in a wide range of sizes to suit various frame and post types
Summarized by Shop
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.