SRAM Red WiFli Rear Derailleur - 10 Speed Medium Cage Black/Silver CheckoutTitle=SRAM GX Rear Derailleur - 11 Speed 05: T1710 E-Thru trainer axle

05: T1710 E-Thru trainer axle M12x1

Fits stems up to 75mm wide

Comes stock on aftermarket versions of Reverb Stealth for easy internal routing

Tends to have a firm grip but can lack a bit of speed

chamfered plate

SRAM Red WiFli Rear Derailleur - 10 Speed Medium Cage Black/Silver CheckoutTitle=SRAM GX Rear Derailleur - 11 Speed 05: T1710 E-Thru trainer axleSRAM Red WiFli Rear Derailleur 10 Speed Medium Cage Black Silver. 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 Compatible with other SRAM 10 speed drive train components TECH SPECS Rear Derailleur Mount Type 10x1 Standard Rear Der Shifter Compatibility SRAM Exact Actuation Cage Length Medium