VG Sports Split Mountain Bike Lightweight Cassette Flywheel, 9 Speed 42T (Gold), 10 Speed 42T (Gold), 10 Speed 50T (Gold), 11 Speed 50T (Gold), 11 Speed 52T (Gold), 12 Speed 50T (Gold), 12 Speed 52T (Gold)

1. Easy to install, not easy to rust
2. CNC precision machining, high hardness, wear-resistant and durable
3. Smooth speed change, one-piece molding
4. Using high-strength aluminum alloy to reduce weight, improve strength and rigidity, strong force, not easy to break
5. Vacuum plating, anti-oxidation, vacuum plating forms a special protective film to prevent surface oxidation
6. Material: aluminum alloy
7. Weight: 9-speed 42T: 426g, 10-speed 42T: 458g, 10-speed 50T: 540g, 11-speed 50T: 590g, 11-speed 52T: 690g, 12-speed 50T: 615g, 12-speed 52T: 710g