• Made of high-strength steel + aluminum material, it has good wear resistance and fatigue resistance, and can maintain stable transmission performance during high-intensity riding
• Lightweight design makes the whole bike more light and comfortable
• Suitable for a variety of terrain and riding scenarios, whether city commuting or outdoor adventure
• Use it to directly replace your old or broken flywheel. Easy to install

Specification:

• Compatibility: for SHIMANO
• Material: Steel, Aluminum
• Weight: about 365g
• Teeth ratio: Teeth ratio: 11-13-15-18-21-24-28-32-38-44-50T