microSHIFT M21 Rear Derailleur - 6/7 Speed Short Cage Dropout Claw Hanger BLK CheckoutSpec= rear Compound Organic Heat Sink No

Compound Organic Heat Sink No Backing Plate Material Steel Pad Shape Number 37

painted steel barrel and piston

Finger Style Full Finger Gender/Age Mens Color Black Padding None Size Large Season Warm Weather Touch Screen Compatible Yes Insulation Type None Defined Color Black Fabric Weight Light Activity Cycling

Using Shimanos Ice Technology the rotor significantly reduces heat build-up in the brake system to ensure consistent high performance braking even on the steepest downhill stretches

microSHIFT M21 Rear Derailleur - 6/7 Speed Short Cage Dropout Claw Hanger BLK CheckoutSpec= rear Compound Organic Heat Sink NomicroSHIFT M21 Rear Derailleur 6 7 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 Largest Cog 30Rear Der Shifter Compatibility Shimano MountainRear Derailleur