m part 40mm threadless stem 1-1/8in to 1in shim in black

A split aluminium Shim that fits over a 25.4 mm (1') Steerer Tube changing the outer dimension to 28.6 mm (1-1⁄8') Features Allows the use of a stem designed to fit 1-1⁄8 inch steerer tubes where greater choice is available Black anodised finish with laser etched detail