SRAM DoubleTap- unlike existing dual control levers (Shimano and Campagnolo) which have 2 gear levers integrated with the brake lever, SRAM's Double Tap integrates a single gear lever behind the brake lever. To control the rear derailleur, this ergonomic lever is moved inwards. Move the lever 15 degrees and it stops at an index point. If you release the lever at this point, the chain moves to the next smallest rear cog into a higher gear. Repeat this process to continue moving into higher gears. If you keep moving the lever past the index point, the chain moves up to a larger cog, from one to three cogs at a time. For the front derailleur, the lever moves similarly, with a push and release to move to the smaller ring and a two position movement to shift to the larger ring. SRAM call this multi-stage action in one lever DoubleTap. And how long does it take to master SRAM DoubleTap shifting? One ride. SPEEDS: 10 Rear/Double Front. MATERIAL/FINISH: Aluminium Brake Lever/ Aluminium Shift Lever. COMPATIBILBIY: SRAM Force and Rival Front and Rear Derailleur's, SRAM & Industry Standard 10 Speed Cassettes. WEIGHT: 340g. This is how SRAM themselves describe DoubleTap. 'Durable, light, and lightning fast: the gear change that will change the way you ride. Built around SRAM's DoubleTap technology, Rival DoubleTap Controls offer a performance advantage that other competition-level shifters can't touch. From the hoods, the drops, or even when you're sprinting, the single-lever design puts unmatched control in your hands while saving weight and limiting shifting motion to an optimized 15° sweep. The Rival DoubleTap controls feature efficient internal cable routing and aluminium brake and shift levers in an exceptionally light 340g package.' |