Sunrace RD-R37 6/7 speed silver/black rear derailleur MFPN=DROPOUT-243 12 speed Micro Spline freehub

12 speed Micro Spline freehub with 36 times/360 degree engagement

Includes soft shell carrying case with storage cutouts and extra pocket

Vendor Racktime Manufacture Number 090720-001 Model Name Boostit Tour 2

Rear Derailleur Mount Type 10x1 Standard Rear Der/Shifter Compatibility SRAM eTap AXS Color Black Cage Length Medium Drivetrain Speeds 12 Chain Wrap Capacity (teeth) 39 Largest Cog 36

Sunrace RD-R37 6/7 speed silver/black rear derailleur MFPN=DROPOUT-243 12 speed Micro Spline freehub6 7 speed road rear derailleur. Composite aluminum and steel construction. SHIMANO Equivalent RD A070 TECH SPECS 6 7sp 28 31 Short 2to1 SIL BLK 282g