absoluteBLACK Chain Catcher is designed to eliminate the possibility of chain falling in towards the frame when shifting to the inner chainring on uneven road. Chain Catcher is a simple add-on component which improves the overall function of your drive train and protects your valuable frame from dropped chains. Especially recommended for Carbon frames.Our chain catcher has a conical tapered head, providing an excellent fit to braze on mounts that are integrated with frame. However with older frames you may use a clamp braze-on adapter. In such case please ensure that your adapter has a front face also conical (not flat).Unlike majority of chain catchers on the market, absoluteBLACK chain catcher can be precisely adjusted to ensure only minimal gap is left to the inner chainring for maximum security.Adjustability: 6mm chainline adjustment provided on the slot for precise setupWeight: 11.6gCompatibility:ÊAll braze on frames and derailleurs.Adjustability:Ê6mm chainline adjustment provided on the slot for precise setupMaterial: CNCÊmachined 7075 T6 / M5 stainless steel boltFinish: Type II anodizing