Shimano Ultegra RD-R8150 Di2 - 12-Speed Rear Derailleur Brakes see the Assegai in DoubleDown

see the Assegai in DoubleDown or DH casing

Note: standard Guide / G2 (R

The details are completed by a neat mud flap to protect the rear shock plus tidy cable routing within the frame and swingarm

Liters: 315

Designed for cyclists of all levels

Shimano Ultegra RD-R8150 Di2 - 12-Speed Rear Derailleur Brakes see the Assegai in DoubleDownShimano Ultegra RD R8150 Di2 12 Speed Rear Derailleur The Shimano Ultegra RD R8150 is the Di2 electronic rear derailleur from the R8100 groupset delivering instant, flawless 12 speed shifting with the speed and precision that has made Di2 the benchmark for electronic drivetrains. Every shift lands perfectly, every time, whether you're sprinting for a sign or grinding up a long climb in the wet. Semi wireless Di2 architecture means clean, fast setup,