K-Edge Road Clamp Chain Catcher functions the same as the original chain catcher, but it mounts to its own CNC sculpted lightweight clamp. K-Edge Road Clamp-on Chain Catcher improves overall function of your drive train while protecting your valuable frame from a dropped chain.For use with braze-on mounted front derailleurs21gClamps independently of front derailleur6061 T6 aluminumAll round seat tube frames or frames with a round mounting area for the front derailleurMounts below existing clamp mounted front derailleursItem SpecificationsFront Derailleur Clamp38.2mm