NEW Shimano Ultegra R8170 2x12-Speed Di2 Electronic Groupset Size:11-30t SteadyPulse mode alerts motorists with

SteadyPulse mode alerts motorists with attention grabbing pulses while its overlapping steady beam constantly lights your way at night

Trickle-down Technology: Boasts features from the top of the line pedals

Range: 10-24

sold separately

Rack dimensions: 13

NEW Shimano Ultegra R8170 2x12-Speed Di2 Electronic Groupset Size:11-30t SteadyPulse mode alerts motorists withBUILD KIT: LEFT SHIFTER: Shimano Ultegra ST R8170 BR R8170 Di2 Shift Brake Lever and Hydraulic Disc Caliper Left Front, 2x12 Speed, Flat Mount, Black RIGHT SHIFTER: Shimano Ultegra ST R8170 BR R8170 Di2 Shift Brake Lever and Hydraulic Disc Caliper Right Rear 2x12 Speed Flat Mount Black FRONT DERAILLEUR: Shimano Ultegra FD R8150 Di2 Front Derailleur 2x12 Speed Braze on Down Swing For 50 54t Max Black Silver REAR DERAILLEUR: Shimano Ultegra RD R8150 Di2