9 Speed 12‑36T Freewheel 9 Speed Cassette Aluminum Alloy Bike Bicycle Freewheel for Electric Bike Moped

Feature: 1. Hollow Out Design: The 9 speed 12‑36T flywheel adopts hollow out design, which can easily reduce weight and reduce cycling burden, achieving a good balance between strength and weight. 2. Aluminum Alloy Material: The 9 speed 12‑36T flywheel is made of aluminum alloy, which is not easy to rust and is durable. 3. Smooth Rotation and No Noise: The 9 speed cassette freewheel rotates smoothly without noise, great using experience. 4. Accurate Internal Threads: High accuracy internal threads ot the 9 speed cassette ensure a tight connection with the bike hub. 5. Easy To Install: Bike freewheel is easy to install, you can directly replace the old or damaged freewheel to obtain higher strength. Specification: Item Type: Bike Cassette Flywheel Product Material: Aluminum Alloy Weight: Approx. 502g 17.7oz. Package List: 1 x Flywheel 3 x Tooth Plate