• It is made of quality aluminum alloy material, with anodizing treatment, high temperature resistance, corrosion resistance, no deformation, providing long-term durability
• High precision teeth ensure close connection with bicycle hub for smooth rotation and easy maintenance
• The hollow design reduces weight and makes your riding easier
• Use it to directly replace your old or broken flywheel. A wonderful accessory for most racing bicycles

Specification:

• Teeth ratio: 11-13-16-20-24-28-32-38-44-50T
• Speed: 10 speed
• Material: Aluminum Alloy