11 Speed 46T Bicycle Card Flywheel Sprocket Mountain Spare Accessory
- Easy to install without any adjustment, effectively save your .
- Hollow out design, reducing weight, can also effectively increase speed at the same .
- Powerful corrosion resistance, rust resistance, high durability, strong impact resistance.
- High-precision tooth shape, strong compatibility, provide a better riding experience.
- Chain groove and mud hole design, make mud drainage hole makes it easier to clean and not easy to drop chain.
