The Chain-Guide can be fully adjusted to the size of the chainring and can be opened without a screw simply by pulling along the axis direction. The Chain- and Bashguard is suitable for a chain line between 47 - 50 mm. - Material: Aluminum (AL6061-T6), Thermoplastic/Polyamide - Standard: ISCG 05 - Chainring size: 28/30T & 32/34T - Height: Fully adjustable - Compatibility: 10/11 and 12-speed - Bashguard included Patent pending!