microSHIFT R10 Rear Derailleur - 10 Speed Short Cage Shimano Compatible BLK MFPN=121-0026000454 Aluminum press-fit cups are lightweight

Aluminum press-fit cups are lightweight

Conquer the outdoors with the Five Ten Hellcat

thanks to Rex Dual compound materials

and three rubber base options for compatibility with more rim internal shapes

microSHIFT R10 Rear Derailleur - 10 Speed Short Cage Shimano Compatible BLK MFPN=121-0026000454 Aluminum press-fit cups are lightweightmicroSHIFT 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 rugged Cage is crafted with steel for enhanced chain rub durability For use with Shimano 10 speed road systems Not compatible