Sinyiin Bike Rear Derailleurs Hanger Weatherproofed Bicycles Derailleurs for Shifting

Features:
Improve bicycles shifting performances, suitable for various vehicle models, easyly to install, and strong durability.
Consist of good-strength aluminum alloys component and treated with black oxidation.
Rusts resistant and wear-resistant, light weight.
Suitable for mountain and road cycling enthusiasts, especially those who require frequent gear changes.
Suitable for various cycling environment such as mountain, road cycling, long-distances travel.

Specifications:
Color:Five Choices
Dimension:10×10cm/3.93×3.93in
Component:Aluminum alloys

Note:
1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order.
2.Due to the differences between different monitors, the picture may not reflect the actual color.

Package includes:
1pc Mountain bikes tail hook