Shimano GRX RD-RX717-SGS Di2 Wireless Rear Derailleur - 12-Speed Long Cage Shadow ES BLK CheckoutTitle=Race Face Pedal Rebuild Kit lightweight platform with a concave

lightweight platform with a concave shape

Pertex® wind-resistant layer is placed over quilted core fleece insulation to provide the utmost in breathable warmth

Offering UPF 50 sun protection

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Ring Position/Type Single Tooth Count 32 Round or Oval Round Drivetrain Speeds 12 Chainring BCD 104 Material Aluminum Defined Color Black

Shimano GRX RD-RX717-SGS Di2 Wireless Rear Derailleur - 12-Speed Long Cage Shadow ES BLK CheckoutTitle=Race Face Pedal Rebuild Kit lightweight platform with a concaveThe 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 structure