SRAM Red Double-Tap

SRAM Double-Tape levers allow you to upshift and downshift the rear derailleur using a single, intuitive lever. A short, light tap of the paddle moves the cable, dropping the chain into a smaller cog. A longer, deeper sweep of the paddle catches the inner mechanism, pulling the cable and moving the chain into a larger cog. These are the 10-speed models, that work with a double front chainring. MSRP $520.