ZTTO 940H Mountain Bike Flywheel 9-Speed 11-40T Sprocket Bike Flywheel

• Made of high quality steel material, high strength, wear-resistant and durable
• Hollow technology can easily reduce weight and make riding easier
• Outstanding performance, to achieve the ultimate riding experience
• Recommended to use on mountain bikes

Specifications:

• Speed: 9 speed
• Material: steel 
• Gear ratio: 11-13-16-20-24-28-32-36-40T

Package included:

• 1 x Bike Flywheel