RESTSALG - FORBEHOLD FOR UDSOLGTThe BBB QuatroFiber BHS-18 is a superlight stem made from 6061 T6 aluminum with carbon fiber cover for MTB's and road bikes. The oversized design guarantees ultimate stiffness and strength. So it withstands the rough demands of fast, competitive rides. With 4-bolt clamp for handlebars with a bar diameter of 31,8mm.For 1 1/8" fork tubes Stem clamp: 1 1/8“ (28,57mm) Bar bore: 31,8 mm (Oversize) Angle: +/-8°