Shimano Altus 8/7SP Rear Derailleur Size:Black I use it where ever

I use it where ever there might be a chance of friction … legs

Technical cleaner for rain and snow clothing and synthetic insulated gear

Includes 1 pair of Extension Cords 120 CM for attachment of Battery Packs at boot-top

and not slowing down for wet weather

Secure bikes quickly without frame contact with the frame free ratcheting arm

Shimano Altus 8/7SP Rear Derailleur Size:Black I use it where everShimano Altus RD M370 M310 Rear Derailleurs 7 8 Speed 13t upper and 15t lower pulleys Color: Black Largest Cog: 34 Rear Derailleur Mount Type: 10x1 Standard Chain Wrap Capacity (teeth): 43 Rear Der Shifter Compatibility: Shimano Mountain Cage Length: Long Drivetrain Speeds: 7 , 8 Weight: 326