Problem Solvers 3.7mm Shim 27.2mm Seatpost to 30.9mm

Switching frames doesn’t mean you have to switch posts! Use your old posts without worry with the Problem Solvers Seatpost Shims.

Length is 97mm with a 3mm lip totaling 100mm

Diameter	30.9
Thickness	3.7
Input Diameter	27.2Mm
Output Diameter	30.9Mm