Material makes the difference: Exact Actuation combined with materials upgrades yields world-beating performance and weight savings. Light weight, precision, and 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 and titanium. Hybrid ceramic bearing pulleys and the titanium parallelogram spring further supercharge the overall component speed, accuracy, and durability. Amazingly, these design choices yield an astonishing 153g mechanism. Equipped with SRAM 1:1 actuation ratio (shifter cable travel : derailleur movement) for 10 speed rear shifting and Exact Actuation, for easy accurate shifting.

• Exact Actuation means precise, even gear changes throughout the shifting range.
• Carbon-fiber cage and carbon fiber inner link provide strength and light weight.
• Speeds: 10
• Material: Aluminum B-Knuckle, Carbon-Fiber Inner Link, Titanium Parallelogram Spring, Carbon-Fiber Cage, BlackBox Ceramic Bearing Pulleys
• Weight: 153g
• Technology: Exact Actuation