Sunrace RD-M37 7 speed black rear derailleur 135x10mm The overall shape and the

The overall shape and the relief channel with its deep cut-out perfectly match the male anatomy in a low forward tilted riding position typical for road biking

T-handle screwdriver: The ideal handle shape to allow high torque transmission in difficult tightening and loosening situations

safeguarding their soles and providing excellent grip on snow

3mm Offset

Sunrace RD-M37 7 speed black rear derailleur 135x10mm The overall shape and the6 7 speed MTB rear derailleur. Engineered polymer and steel construction. Direct mount with optional hanger included. SHIMANO Equivalent RD TY21 RD A070 TECH SPECS 7sp 30 37 Mid 2to1 BLK 265g