Check the listing for details. microSHIFT M21 Rear Derailleur - 6,7 Speed, Short Cage, Dropout Claw Hanger, Bla. Condition: New. Listed at 12.99 USD. Powered by Frooition microSHIFT M21 Rear Derailleur - 6,7 Speed, Short Cage, Dropout Claw Hanger, Bla Item Description 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 constructionCompatible with Shimano 6- and 7-speed mountain and road systems Color: BlackRear Derailleur Mount Type: Dropout Claw HangerChain Wrap Capacity (teeth): 39Cage Length: ShortRear Der/Shifter Compatibility: Shimano MountainDrivetrain Speeds: 6/7 $12.99 NEW microSHIFT Powered by Frooition Frooition Frooition | No-js Template | eBay design, eBay store design, eBay shop design, eBay template design, eBay listing design (ver:froo_no_js) This listing is currently undergoing maintenance, we apologise for any inconvenience caused.