Same great features as Sram`s Aero 900 carbon shifters at an affordable price Compatible with Sram Red, Sram Force, Sram Rival, Sram Apex Front and Rear Derailleurs Exact actuation technology Aluminum construction 154g per pair Pair 2x10s 1 to 1 Blk 154gUPC/EAN/GTIN: 710845747106