Install a bicycle flywheel. When the rider pedals, energy is transferred through the chain to the flywheel. Because of the flywheel’s inertia, energy is stored, turning the rear wheel and helping propel the bike forward. The bicycle flywheel is a key rear-wheel accessory that helps smooth the ride and improve overall feel on the bicycle. Material: steel with high wear resistance, high strength, and durability. Performance and compatibility: - 9-speed freewheel - designed to work with bicycle flywheel systems and well-functioning drivetrain setups Key benefits: - Improves ride smoothness by storing and releasing rotational energy - Supports consistent power transfer from pedaling to the rear wheel - Durable steel construction for long-lasting performance Practical use scenarios: - Daily urban commuting on mixed surfaces, where smoother power delivery enhances comfort - Long-distance rides on variable terrain, helping maintain cadence and momentum - Climbs and rolling hills where energy storage contributes to steadier acceleration and control What makes it stand out: - Steel construction combines wear resistance with reliability for demanding use - Integrated 9-speed freewheel design supports compatible drivetrains and smooth gear operation - Clear emphasis on function, durability, and practical performance without exaggeration