Racework 11-28T Road Bike Ultra-Light Integrated CNC Flywheel Bicycle Rear Gear(Silver)

1. Ultra-light hollow flywheel titanium material
2. Lightweight design, integrated by CNC cutting
3. Chain: compatible with EAGLE series chain SHIAMNO KMC chain
4. Support tower base: ordinary SH 11-speed highway tower base
5. Compatibility: Support Shimano SRAM series variable speed
6. Weight: 192g