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: 27.2
• Diameter: 30.9
• Thickness: 3.7