microSHIFT R9 Rear Derailleur - 9,10 Speed, Medium Cage, Black Safety UPC: 847863025555

UPC: 847863025555

UPC: 4931253015335

and additional support was added to the cornering knobs

UPC: 689228828056

microSHIFT R9 Rear Derailleur - 9,10 Speed, Medium Cage, Black Safety UPC: 847863025555R series rear derailleurs are designed to work with 7, 8 ,9, and 10 speed Shimano compatible road shifters. These R9 rear derailleurs combine the benefits of R10 and R8 rear derailleurs: compatibility friendly, weight saving, and robust. Weight saving aluminum bracket body and outer link Steel pulley cage for extra chain rub durability Compatible with Shimano 7, 8, 9, and 10 speed road systems Not compatible with Shimano Tiagra 4700 road system