HUMSER 24 Teeth Freewheel Sprocket Rear Flywheel, Specifications: Item Type: Bicycle Flywheel, Outer Dia: 101mm, Inner Dia: 34mm, Thickness: 15mm, Pitch Thickness: 3.5mm, Pitch Dia: 89mm, Weight: 255g, Material: Metal, Number Of Teeth/Tooth: 24. Features: The Mountain Bike Freewheel Is Single Speed Flywheel 24 Tooth Design With Professional Manufacturing, Stable Performance & 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 & Smooth Operation, Good Corrosion Resistance & High Toughness, The Bicycle Freewheel For Simple Installation, Provide Good Usage Experience, Easy To Install & Dismantle, Convenient To Replace For Old Or Brokens. This Bicycle Freewheel Constructed Mainly Of Durable Metals, High Strength, Sturdy & Durable. This Freewheel Works Together With Motor, In Order To Work With Other Motors, You Need To Use A Suitable Adaptor To Connect Them. Bike Try All For Threaded Hubs. Package Includes: 1 X 24T Freewheel.