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 and durable aluminum and has a lip on the top so it won't slide down inside the frame during installation.
|1.4mm shim, 27.2 seatpost to 28.6 frame||708752009882||ST0214||19336|
|2.0mm shim, 27.2 seatpost to 29.2 frame||708752009899||ST0220||55816|
|3.7mm shim, 27.2 seatpost to 30.9 frame||708752012851||ST0237||19254|
|4.4mm shim, 27.2 seatpost to 31.6 frame||708752012875||ST0244||52854|
|1.8mm shim, 25.4 seatpost to 27.2 frame||708752024380||ST0518||19148|