1. Constructed of high strength steel, anti-, non-deformation, wear-resistant, high performance of durability.
2. High thread ensures close connection with the bike hub and .
3. It can promise rotation of chain without much noise .
4. Providing fast riding speed with less effort needed.
5. Reliable to use, applicable to mountain bike freewheel.​

Spec:
Features:
Constructed of high strength steel, anti-, non-deformation, wear-resistant, high performance of durability.
High thread ensures close connection with the bike hub and .
It can promise rotation of chain without much noise .
Providing fast riding speed with less effort needed.
Reliable to use, applicable to mountain bike freewheel.
Specification:
Material: Stainless steel
Weight: 430g/15.2oz
Variable speed: 7 speed
Size: 11.5 * 11.5cm / 4.5 * 4.5in
Package List:
1 x Bike Freewheel Set
Note:
Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.