Our renowned carbon front derailleur mount is now available for all frame sets, not just our own! The handmade clamps are designed to be as strong as their metal counterparts but safer to lightweight carbon, titanium and steel tubes. Sizes available are 28.6mm, 31.8mm and 34.9mm. All PARLEE frame sets use 34.9mm clamps. The clamp was revamped with increased stiffness for shifts under load and compatibility with Di2 and EPS shift systems. The clamps are hand built in Beverly, MA from 100% carbon fiber with replaceable stainless screw and washer. Lifetime warranty. Fits Campagnolo, SRAM and Shimano road front derailleurs.