Rear Derailleur For Mountain Bike With Direct Hanger Mount, 6 7 Speed Compatible, Aluminum Alloy, 18 And 21 Speed, Easy Install, Smooth Shifting, Essential Bike Repair Accessory For Stable Rides

Direct Mount MTB Rear Derailleur for 6/7/18/21 Speed
✔️ Aluminum alloy body, direct or hanger mount, precise easy install

This Rear Derailleur is designed for mountain bikes and road bikes, offering direct mount or hanger mount compatibility for frames that require either option. Made from durable aluminum alloy, it delivers light weight with reliable, smooth shifting and strong performance on rough terrain. It's a handy upgrade or repair part to keep rides stable and predictable on long trips or daily commutes.

✅ Model: RD-TZ31A rear derailleur, compatible with 6/7 speed and 18/21 speed
✅ Material: Aluminum alloy with hollow weight-reduction design for lighter feel
✅ Mount options: Direct Mount or Hanger Mount; check original part before ordering
✅ Application: For MTB, road bikes, folding bikes; smooth, stable shifting
✅ Package: 1 x Bicycle Rear Derailleur

Dimensions	14x8x10 cm	5.5x3.1x3.9 in

💡 What is a rear derailleur used for on a mountain bike with direct mount and hanger options? - It shifts the chain smoothly across gears - It keeps chain tension and alignment under load - It supports multiple speeds such as 6/7, 18/21 - It can mount directly to the frame or on a hanger