Achiza's 22 Teeth Sprocket Freewheel Rear Flywheel, Specifications: Item Type: Bicycle Flywheel, Outer Dia: 93mm, Inner Dia: 34mm, Thickness: 15mm, Pitch: 13.56mm, Pitch Dia: 82mm, Weight: 258g, Material: Metal, Number Of Teeth/Tooth: 22. Features: The Mountain Bike Freewheel Is Single Speed Flywheel 22 Tooth Design With Professional Manufacturing, Stable Performance And High Reliability For Long Service Time. The Bike Rear Wheel Freewheel's Inner Thread Is Finished With High Precision, Which Ensure Close Connection With The Bike Hub And Smooth Operation. Good Corrosion Resistance & High Toughness. The Bicycle Freewheel For Simple Installation, Provide Good Usage Experience. Easy To Install And Dismantle. Convenient To Replace For Old Or Brokens. This Bicycle Freewheel Constructed Mainly Of Durable Metals, High Strength, Sturdy And Durable. This Freewheel Works Together With Motor MY1016Z, MY1018, In Order To Work With Other Motors, You Need To Use A Suitable Adaptor To Connect Them. Applications: Fixed Gear Bike, Electric Bike/Bicycle, Dirt Bikes, Bike Try All, Fit Chain Size: 1/2” X 1/8”, For Threaded Hubs. Package Includes: 1 X 22T Freewheel