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.
|2.0mm shim, 27.2 seatpost to 29.2 frame||708752009899||ST0220||708752009899|
|2.8mm shim, 27.2 seatpost to 30.0 frame||708752011502||ST0228||PRO324266460|
|3.2mm shim, 27.2 seatpost to 30.4 frame||708752011526||ST0232||PRO23653349M|
|3.6mm shim, 27.2 seatpost to 30.8 frame||708752012899||ST0236||PRO22324107M|
|4.6mm shim, 27.2 seatpost to 31.8 frame||708752012882||ST0246||PRO22687462M|