ZTTO XX1 Mountain Bicycle Hollow Flywheel 11 Speed 11-50T Aluminum Alloy Bike Flywheel

• The flywheel is made of high-quality materials, has good wear resistance and fatigue resistance, and can maintain stable transmission performance during high-intensity riding
• The flywheel is made of lightweight materials, making the entire bicycle lighter and more comfortable
• The flywheel is suitable for a variety of terrains and riding scenarios, whether it's urban commuting or outdoor adventures

Specification:

• Speed: 11-Speed
• Teeth ratio: 11-50T
• Compatible with: for SHIMANO, for SRAM
• Weight: 350g
• Material: aluminum alloy