Suitable for all bicycles. Made from cold-forged 6061 T6 aluminum. Features a two-screw system for micro-adjustment. Diameter options: 25.0, 25.4, 25.6, 25.8, 26.0, 26.2, 26.4, 26.6, 26.8, 27.0, 27.2, 28.6, 28.8, 29.0, 29.2, 29.4, 29.6, 29.8, 30.0, 30.2, 30.4, 30.6, 30.8, 30.9, 31.0, 31.2, 31.4, 31.6, 32.0, and 34.9 mm. Offset: 0 mm. Length: 400 mm. Weight: 295 g (31.6 mm).