Bicycle Crankarm Spacer

Eliminate unwanted side-to-side spindle play and align your drivetrain components with precision using our Bicycle Crankarm Spacers collection. Critical for installing modern 24mm, 29mm (DUB®), and 30mm spindle cranksets into varied bottom bracket shell widths, these ultra-thin spacers and wave washers let mechanics micro-adjust crank placement. Choose from precision alloy spindle spacers designed to fine-tune drive-side chainline for 12-speed and Boost frame configurations, flexible wave spring washers engineered to apply consistent axial pre-load onto sealed bearings to prevent play without binding, or multi-thickness shim kits supplied with varying micro-gauge washers for custom fitment. CNC-machined from high-grade aluminum and durable polymers, these spacers provide rock-solid support under high pedaling loads.