Specs Material: Aluminum Finish: Natural aluminum (silver metal appearance) Design: Slotted cylindrical sleeve with a top lip Weight: Lightweight construction Features Durable, lightweight aluminum construction for reliable use Top lip helps prevent the shim from sliding down inside the frame during installation Split/slotted sleeve design allows easy installation and a secure grip on the seatpost Enhances diameter compatibility between seatpost and frame for a stable ride From Problem Solvers, a trusted name in cycling components Compatibility Designed to improve fit when a seatpost is slightly undersized for the frame bore Works as an adapter to achieve a snug, secure connection without replacing components Physical The shim is a cylindrical aluminum sleeve with a longitudinal slit and a top lip. Its compact, straightforward geometry fits inside the frame’s seatpost area, aligning the post for stable performance during riding. The lightweight construction maintains bike feel while boosting fit reliability.
