SunRace M37 Rear Derailleur - 7-Speed Long Cage Black MFPN=00540 Flexible and stretchy hexAir bike

Flexible and stretchy hexAir bike seat covers simply fit over your existing saddle to provide a waterproof and UV resistant breakthrough in technology

Rack and fender eyelets at the dropout

Tool and tube mount on underside of top tube

Defined Color Black Diameter 25

Widths available for gravel to trail bikes

SunRace M37 Rear Derailleur - 7-Speed Long Cage Black MFPN=00540 Flexible and stretchy hexAir bikeThe SunRace M3 Rear Derailleur is designed for 7 speed MTB drivetrains. Indexed adjuster Largest Cog 30 Color Black Rear Der Shifter Compatibility Shimano Mountain Rear Derailleur Mount Type Shimano Rear Direct Mount Drivetrain Speeds 7 Weight 230 Chain Wrap Capacity (teeth) 37 Cage Length Long