Brand: Shimano
Name: Shimano GRX RD-RX812 Rear Derailleur - 11-Speed Long Cage Black With Clutch For 1x 42t Low Sprocket Max
Model Number: IRDRX812
UPC: 192790448886
Color: Black
Speed compatibility: 11
Cable Pull Ratio: 1.4 - Shimano 11 road (and Tiagra 4700 10 speed road), Campagnolo old
Cage Length: Long
Actuation: Cable
Total Capacity: 31
Top Gear Max: 42
Weight: 267 grams
Chainring Differential: 31
Round/Oval: Round
Material:None