SRAM Red WiFli Rear Derailleur - 11 Speed Medium Cage Black CheckoutSpec= N10/N11 Adjustable heel section where the

Adjustable heel section where the boot size is preselected using snap hooks on the heel rails

Designed to maximize the performance of Avid brakes

Custom carbon layup equalizes impact forces on both the long and short sides of the rim making both stronger

High strength and minimum weight laminate

Elastic panels under the arms and in the upper back for optimal mobility and ventilation

SRAM Red WiFli Rear Derailleur - 11 Speed Medium Cage Black CheckoutSpec= N10/N11 Adjustable heel section where theSRAM Red WiFli Rear Derailleur 11 Speed Medium Cage Black. Top of the line rear derailleur with generous use of carbon fiber and titanium for maximum performance at minimal weight. Carbon fiber and aluminum construction Ceramic bearing pulleys Titanium hardware TECH SPECS Rear Derailleur Mount Type 10x1 Standard Rear Der Shifter Compatibility SRAM Exact Actuation Cage Length Medium Drivetrain Speeds 11 Weight 152 Color Black keyword search RD4621