microSHIFT M21 Rear Derailleur - 67 Speed Short Cage Dropout Claw Hanger BLK MFPN=TB00211500 5mm 10/11-Speed 42t 110 Asymmetric

5mm 10/11-Speed 42t 110 Asymmetric BCD GXP Spindle Interface Black

100% UV protection

Impressively HYPR decreases rolling resistance and increases traction all while keeping durability equal to our previous rubber compounds

Top Tube Diameter Fits: 38 - 52mm

Popular among messengers and paper carriers is designed to carry large loads with its stout legs cargo bands and heavy duty handlebar clamps

microSHIFT M21 Rear Derailleur - 67 Speed Short Cage Dropout Claw Hanger BLK MFPN=TB00211500 5mm 10/11-Speed 42t 110 AsymmetricmicroSHIFT M21 Rear Derailleur 67 Speed Short Cage Dropout Claw Hanger Black. M21 rear derailleurs are designed to work with 6 and 7 speed Shimano road and mountain shifters. Enjoy the wide variety of bikes you can get going again with M21 rear derailleurs. Robust composite and steel construction Compatible with Shimano 6 and 7 speed mountain and road systems TECH SPECS Cage Length Short Chain Wrap Capacity (teeth) 39 Color Black Drivetrain Speeds 7