- Material: carbon- Weight: 6gr (31.8mm) - 8gr (34.9mm) with ti bolt- Titanium bolt with black anodization- Aluminium nuts: black, blue, or red- Height: 15mm- Screw torque: max. 6Nm- Diameters:30.0mm(Cervelo)31.8mm34.9mm36.9mm(Specialized)38.2mm(Scott)