**Jiawu 11-Speed Cassette Flywheel - Heat & Abrasion Resistant, High-Strength Bike Cassette for Road & Mountain Bikes - Perfect for High-Performance Cycling & Off-Road Adventures**

Feature:1. With a hollow design, the weight is reduced, and it will not add too much burden to your bicycle when using it.2. The flywheel rotates steadily without noise, ensuring a close connection with the bicycle hub and smooth operation.3. Using high‑quality metal material, it has good corrosion resistance and heat resistance.4. There is no need to worry about long‑term use of friction and heating, which will affect its service life.5. Professionally manufactured, it can directly replace old or damaged flywheels. It is an excellent accessory for mountain bikes and road bikes.Specification:Item Type: Freewheel CassetteMaterial: Aluminum Alloy + SteelProduct Color: As Pictures Shown Product Weight: Approx. 294g / 10.4ozGear Ratio: 11-12-13-15-17-19-21-23-25-28-32T （11S 32T） Package List:1 x Flywheel2 x Sprocket1 x Flywheel CoverNote:After the installation is complete, check whether the flywheel is locked and whether it is aligned.

Professionally manufactured, it can directly replace old or damaged flywheels. It is an excellent accessory for mountain bikes and road bikes.

Professionally manufactured, it can directly replace old or damaged flywheels. It is an excellent accessory for mountain bikes and road bikes.

The flywheel rotates steadily without noise, ensuring a close connection with the bicycle hub and smooth operation.

Using high‑quality metal material, it has good corrosion resistance and heat resistance.

With a hollow design, the weight is reduced, and it will not add too much burden to your bicycle when using it.

There is no need to worry about long‑term use of friction and heating, which will affect its service life.