• Adopting high-strength steel material, hard, anti-corrosion and durable to use
• 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:

• Material: steel
• Compatibility: HG Hub
• Speed: 11 speed
• Teeth ratio: 11-13-15-18-21-24-28-32-36-42-50T