
SRAM Red 10 Speed Rear Derailleur 2011: Material makes the difference: Exact Actuation™ combined with materials upgrades yields world-beating performance & weight savings. Light weight, precision, & fluid performance put the new SRAM Red Rear Derailleur in a class of its own. Based on the already-superior design of the SRAM Force Rear Derailleur, the Red offering delivers even greater advantages thanks to a diet of structural carbon & titanium. Hybrid ceramic bearing pulleys & titanium parallelogram pivot bearing refinements further supercharge the overall component speed, accuracy, & durability. Amazingly, these design choices yield an astonishing 153g mechanism. Technology: Exact Actuation Speeds:10 Speed Weight:153g
Material: Aluminum B-Knuckle, Carbon-Fiber Inner Link, titanium Parrallelogram Spring, Ceramic Cartridge bearing, Carbon-Fibre Cage, Black Box™ Ceramic Bearing Pulleys Compatability: Max tooth 28T