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The Problem Solvers Cantilever Studs screw into the bosses built into bicycle frames to provide the proper mounting studs for brakes. Each brake requires two studs.

Switching frames doesn’t mean you have to switch posts! Use your old posts without worry with Problem Solver's wide variety of seatpost shims. -100mm long -3mm lip -Alloy Problem Solvers Seatpost Shims are not intended for use with carbon seatposts