Shimano GRX RD-RX717-SGS Di2 Wireless Rear Derailleur - 12-Speed Long Cage Shadow ES BLK CheckoutTitle=KMC MissingLink-11 DLC Connector - 11-Speed 5mm flathead exceeds ISO standards

5mm flathead exceeds ISO standards and serves countless service procedures

so you can ride hard while staying firmly in place

}Campagnolo Ergopower Maximum Smoothness Shift Cable and Housing Set

Shimano/SRAM 9-speed compatiable

Shimano GRX RD-RX717-SGS Di2 Wireless Rear Derailleur - 12-Speed Long Cage Shadow ES BLK CheckoutTitle=KMC MissingLink-11 DLC Connector - 11-Speed 5mm flathead exceeds ISO standardsShimano GRX RD RX717 SGS Di2 Wireless Rear Derailleur 12 Speed Long Cage Shadow ES Black. TECH SPECS Largest Cog 51Rear Der Shifter Compatibility Shimano Road Di2Rear Derailleur Mount Type Shimano Rear Direct MountRear Derailleur Mount Type 10x1 StandardDrivetrain Speeds 12Chain Wrap Capacity (teeth) 41Cage Length LongColor Black