NEW Shimano GRX RD-RX717-SGS Di2 Wireless Rear Derailleur - 12-Speed, Long Cage, Shadow ES, Black groupset_family_x0 and is only compatible with

and is only compatible with the Campagnlo Ekar 1x13 drivetrain

Uses full length cable housing

FSA PowerPro JIS Cartridge Bottom Brackets

Bottom Bracket: Shimano BB-R9100

Tell that deejay to drop the needle and fire up the mirror ball

NEW Shimano GRX RD-RX717-SGS Di2 Wireless Rear Derailleur - 12-Speed, Long Cage, Shadow ES, Black groupset_family_x0 and is only compatible withThe Shimano GRX RX717 Di2 Wireless rear derailleur paired with a 10 51t cassette (cassette sold separate) gives gravel riders the speed, range, and robustness to pursue any gravel challenge. With built in automatic impact recovery, an impact deflecting shape, and solid pulleys, this derailleur stands up to hard impacts and still retains its lightning quick shifting performance. Fully wireless shifting built for rough gravel terrain A wide link