Problem Solvers Seatpost Shim (Silver) (27.2mm to 30.0mm)
Problem Solvers Seatpost Shim (Silver) (27.2mm to 30.0mm), Switching frames doesn't mean you have to switch posts! Use your old posts without worry with Problem Solvers' wide variety of seatpost shims. Specifications: 100mm long (including 3mm lip) 3mm lip Alloy Problem Solvers seatpost shims are not intended for use with carbon seatposts