Bike Freewheel 9 Speed 13‑32T Rust Proof No Deformation Wear Resisting Bicycle Accessory

Feature: 1. Made of high strength steel, nitrided to strengthen the surface, and produced by cold forging equipment. It is rust proof, non deformation, wear resistant and durable 2. The bottom of the rotary flywheel is provided with an interface thread, and the flywheel and the flower drum are locked through the thread 3. High accuracy thread ensures close connection with bicycle wheel and stable operation 4. Hollow out low noise to ensure stable rotation of the chain and low noise; Provide fast riding speed and reduce the burden of long term riding 5. Excellent accessory for mountain bikes and road bikes. It s a favorite of cyclists. Easy to install Specification: Item Type: Bike Freewheel Material: Steel Number of Flywheel Teeth: 13 14 15 17 19 21 24 28 32T Applicable: 9 2x9 27 Speed Bottom Internal Thread Diameter: Approx. 34mm 1.3in. Package List: 1 x Bike Freewheel Note: Notice before purchase: if your chain ride time is too long, it is recommended not to replace the new flywheel at will; If the flywheel is replaced with a new one, there will be tooth skipping and chain skipping, which will affect the normal riding.resolvent:Method 1: replace the old flywheel with the old chain;Method 2: in the case of tooth skipping and chain skipping, ride forcibly for a period of time. The running in time varies according to the wear of the chain.Please allow 0 to 2 cm error due to manual measurement. Thanks for your understanding.