Problem Solvers 0.7mm Shim, 30.9mm Seatpost to 31.6mm

Problem Solvers Seatpost Shims Due to the ultra-thin spec of this shim and varied manufacturing tolerances of frames and seatposts, we can’t guarantee compatibility with all brands on the market Be gentle and use grease Length is 97mm with a 3mm lip totaling 100mm Item Specifications Seatpost Diameter 30.9mm Thickness .7mm Problem Solvers Seatpost Shims Seatpost Shim UPC: 708752077386 MPN: 1P212-0915100S