Altus M310 7/8 speed Rear Derailleur - Black Color:Black ETRTO: 32-622

ETRTO: 32-622

running with a jogging stroller

back and glutes

Also Discraft's most popular recreational throw and catch model

Extremely durable and built to last thousands of hits Lab tested to last 5X longer than traditional plastic practice balls Limited-flight design for easier retrieval

Altus M310 7/8 speed Rear Derailleur - Black Color:Black ETRTO: 32-622Shimano Altus RD M370 M310 Rear Derailleurs 7 8 Speed 13t upper and 15t lower pulleys Largest Cog: 34 Rear Derailleur Mount Type: 10x1 Standard Chain Wrap Capacity (teeth): 43 Cage Length: Long Rear Der Shifter Compatibility: Shimano Mountain Drivetrain Speeds: 7 , 8 Weight: 326