Sram apex 10 speed front mechthe perfect chainline the new apex 10 speed front derailleur offers a complete approach to the critical balance of positive downshifts and light action upshifts featuring a proprietary sram actuation ratio professionally engineered cage design and intuitive adjuters the new sram apex front derailleur establishes itself as a legitimate high performance product features material aluminum body steel cage weight braze on 89g compatibility compatible with standard a