Feature:
1. Cancel the gear shift, reduce the driver's energy on shifting, and make the driver concentrate more on riding.
2. The gear ratio can be continuously changed without changing the front and rear gears simultaneously.
3. Remove excess parts and reduce weight. Easy to cleaning.
4. Wonderful cycling accessory for mountain bike.
5. 4 different types for you to choose, meet your different needs.
Specification:
Condition: 100% Brand New
Item Type: Bike Positive & Negative Tooth Disc
Material: aluminium alloy
Color: Plating Color
Optional: 32T, 34T, 36T, 38T Applicable crankset: BCD104mm, 4 holes are enclosed in a square, and the distance between the centers of the 2 holes is 104mm/4.1in
Package List:
1 x Bike Positive & Negative Tooth Disc