Rear discs

The rear disc is the core of the wheel's power transmission, connecting the drivetrain to the rear tyre and contributing to the stability, durability and riding experience of the bike. A properly selected and maintained rear disc improves performance and reliability. Rear disc characteristics. The hub is where the transmission components, such as the freewheel, are located. Purpose: Road wheels: Rear discs are lightweight and aerodynamic to maximise speed and efficiency. Off-road bikes: rear discs are wider and more durable, providing grip and durability on rough terrain. Electric wheels: reinforced structures to withstand higher loads and torque. Material: aluminium is durable and affordable, while carbon fibre is a lighter, higher-performance option. Free-wheel and transmission: The free-wheel on the rear disc allows pedalling to be paused and determines compatibility with the gearbox. Maintenance and check: Surface tension and pulley run-out: The balance and straightness of the rear pulley is checked and adjusted. Bearing maintenance: check, clean and grease hub bearings as necessary. Closed bearings are more durable and maintenance-free, while open bearings allow for easy maintenance. Tyre condition: the condition and air pressure of the tyres and inner tubes are checked regularly. The rear wheel is a key component of the bike's performance, so its selection and regular maintenance will ensure a smooth and safe ride in all conditions.