Rear Derailleur For Mountain Bikes And Commuters M310 TZ31 6 7 8 Speed Direct Mount Or Hanger Mount With Smooth Gear Shifts Ideal Upgrade Or Replacement For Kids Bikes Mountain Trikes And Cruisers

M310 TZ31 Rear Derailleur for 6-8 Speed MTBs (Single)
✔️ Direct Mount or Eyelet/Hanger Mount, 11T guide wheel, alloy body (Single)

This rear derailleur is a bike gearing component designed to shift gears smoothly on mountain bikes and everyday commuters. It's ideal for upgrading or replacing worn derailleurs on bikes including kids bikes, mountain trikes, cruisers, and standard drivetrain systems.

✅ Eyelet-mount rear derailleur design compatible with direct mount or hanger mount
✅ 11T guide wheel provides smooth shifting
✅ Alloy body offers lightweight, durable performance
✅ 6mm/3.5mm hex wrench for installation and adjustment
✅ Fits 6/7/8-speed drivetrains and standard drivetrains on mountain bikes, commuters, and kids bikes
✅ Color: Black; designed for standard bike systems

💡 What is a rear derailleur used for in a bike drivetrain?

The derailleur shifts the chain across gears to keep the right gear ratio as you ride. It helps maintain tension and alignment for smooth pedaling on 6-8 speed setups.

- It enables gear changes across the cassette to match riding conditions - It keeps chain tension smooth and reduces chain slip - It works with eyelet, direct mount, and hanger setups on mountain bikes and commuters