- Function and operation Install a bicycle flywheel. When the cyclist pedals, energy is transferred to the flywheel via the chain. Due to the inertia of the flywheel, the energy that rotates the rear wheel is stored and thus drives the bike forward. - Ride quality The bicycle flywheel is a very important accessory on the rear wheel of a bike, which makes the ride smoother. - Material and durability Material: high-strength steel nickel chrome with higher wear resistance, high strength and durability. - Performance and shifting Speed: 7 speed freewheel, bicycle flywheel, perfectly running shifting systems. Use scenarios - Daily urban riding and commuting: helps smooth power delivery during frequent starts and stops, improving overall ride comfort. - Hills and longer rides: the inertia of the flywheel supports the rear wheel, aiding momentum and making climbs feel easier. - Replacement or upgrade: suitable for bikes with a 7-speed drive system, providing reliable durability and smooth shifting performance.