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

The Features of the Sram Red Rear Mech are:

• Exact Actuation
  
  
• 10 Speed
  
  
• 153g
  
  
• Aluminum B-Knuckle, Carbon-Fiber Inner
  
  
• BlackBox Ceramic Bearing Pulleys
  
  
• Max tooth 28T