microSHIFT R10 Rear Derailleur - 10-Speed Medium Cage Shimano Road Compatible BLK

microSHIFT R10 rear derailleurs feature forged and CNC machined construction that pairs durability with a quality finish. This lightweight and lightweight rear derailleur is robust and designed to get any 10-speed Shimano Road compatible bike back on the road.Forged and CNC machined aluminum construction is lightweight and ruggedCage is crafted with steel for enhanced chain-rub durabilityFor use with Shimano 10-speed road systemsNot compatible with Shimano Tiagra 4700 road system