SunRace M900 Rear Derailleur - 9-Speed Medium Cage Black ModelNumber=25021 disc specific aluminum clincher rim

disc specific aluminum clincher rim featuring a Tiebeam triple-cavity internal structure and Bead Socket Technology (BST)

5mm/5mm/10mm/20mm Steerer Tube 1-1/8

Safe on all parts and surfaces including carbon fiber

WC Liquid Warm

easy to ski

SunRace M900 Rear Derailleur - 9-Speed Medium Cage Black ModelNumber=25021 disc specific aluminum clincher rimSunRace M900 Rear Derailleur 9 Speed Medium Cage Black. The SunRace M9 Rear Derailleuris designed for 9 speed MTB drivetrains. TECH SPECS Largest Cog 51 Color Black Rear Der Shifter Compatibility Shimano Mountain Rear Derailleur Mount Type Shimano Rear Direct Mount Drivetrain Speeds 8 Drivetrain Speeds 9 Weight 270 Cage Length Medium