Fydun Cassette Flywheel, Bicycle Freewheel Cassette Sprocket 7 Speed Mountain Bike Replacement Accessory

• [Durable High-Strength Construction:]This 7-speed bicycle freewheel cassette sprocket is constructed from high strength stainless steel, making it anti-rust, non-deformable, and wear-resistant.
• [Precision Threading for Smooth Operation:]Engineered with high precision threading, this cassette ensures a close connection with your bike hub, enabling smooth operation and optimal power transfer from pedals to wheels for an enhanced riding experience.
• [Quiet and Efficient Riding:]The design of this freewheel cassette promises smooth chain rotation with minimal noise, allowing for a more enjoyable ride while providing fast speeds with less effort.
• [Reliable Performance for Mountain Bikes:]This reliable replacement accessory is specifically designed for mountain bikes, ensuring it meets the demands of rugged trails while enhancing your bike's performance and efficiency.
• [Easy Installation and Compatibility:]With its standard size of 11.5 * 11.5cm, this bike freewheel set is easy to install and compatible with a variety of 7-speed mountain bikes.

Specification: Material: Stainless steel Weight: 430g/15.2oz Variable speed: 7 speed Size: 11.5 * 11.5cm / 4.5 * 4.5in Package List: 1 x Bike Freewheel Set Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.