Manubrio bici strada carbonio barra percorso interno 31,8mm 400 420 440mm UD opaco
Do not use 31.8 aluminum alloy stem with our handlebar, the wrong stem will cause the handlebar to rupture. Handlebar Width: 400/420/440mm. Clamp: 31.8 mm. Material: Carbon Fiber. Torque:4 Nm.