Description:
- Chain tensioner can support single speed, 2 speed, 3 speed and 6 speed Both internal and external changes are available.
- Made of nium alloy material, CNC machined, durable and durable.
- Bearings are placed inside of the guidewheel will not move the frame when the guide wheel is working, only the guide wheel rotates, and the speed change is more smooth.
- Suitable for folding bikes.
- Lightweight and compact, easy to install and use. A great accessory for the cyclist.
Specifications:
- Material: Alloy
Size Chart:
Size: 50mm/1.97"
Package Includes:
1 Pair of Rear Derailleur Pulleys