SRAM X3 Rear Derailleur 8 Speed Black MY10 E1 Our Patent pending design makes

Our Patent pending design makes life easy

Compatible cranksets Shimano Ultegra 8000

and tested together to perform best as a system

FERNWEG EVO PRO goes beyond the original FERNWEG EVO

Auto on-off mode for convenient use

SRAM X3 Rear Derailleur 8 Speed Black MY10 E1 Our Patent pending design makesLeveraging the legendary history of SRAM shifting, the X3 rear derailleur provides great shifting performance. Features ESP compatible (1: 1 actuation ratio) for ESP trigger or twist shifters Di. R. T (Direct Route Technology) for light effort shifting performance Composite and steel links with a Grilon composite B knuckle and P knuckle Steel composite cage with replaceable, mud ported pulleys 7 8 speed Mfr Claimed Weight 210g