Shimano Ultegra RD-R8050 Di2 11 Speed Rear Derailleur Axle Size_15 x 110mm the SRAM PG-1170 11 Speed

the SRAM PG-1170 11 Speed Cassette adopts PowerGlide technology

LED indicator lights communicate connectivity and more

The relative movement of the MIPS Air is enabled by a backing of polycarbonate PC with a special low friction treatment

Constructed from a fully seam sealed 10

Material: AL-7075

Shimano Ultegra RD-R8050 Di2 11 Speed Rear Derailleur Axle Size_15 x 110mm the SRAM PG-1170 11 SpeedShimano Ultegra RD R8050 Di2 11 Speed Rear Derailleur Electronic shifting with precise and perfected movement across your rear derailleur, the Shimano Ultegra R8050 Di2 11 Speed Rear Derailleur, GS is a refined choice that provides the highest levels of technical accuracy in your groupset, allowing you the smoothest shifting experience possible. A programmed automatic motion allowing you to range across your gearing at the simple touch of a button,