Featuring a proprietary SRAM actuation ratio, professionally engineered cage design & intuitive adjusters, the new SRAM Apex front derailleur establishes itself as a legitimate high performance product. New SRAM&174; Apex is the perfect blend of technology & performance, so all riders can challenge their personal limits. SRAM&174; Apex has double chainrings, which are simpler, lighter, faster, & in every way, just better than a triple. & with a gear range thats wider, making climbing easier & descending faster, why would you ever go back to three?