What Causes Excessive Heat in a Motorcycle's Rear Wheel?

[Daniella]

Here is an analysis of the reasons why a motorcycle's rear wheel may become excessively hot: 1. Prolonged Braking: Whether the rear wheel has a drum brake or disc brake, prolonged braking can cause the rear wheel to overheat. This is especially common with drum brakes due to their generally poorer heat dissipation. 2. Riding with the Brake On: Riding while keeping the brake engaged is equivalent to riding with the brake pedal pressed. This condition can easily cause the wheel to overheat, primarily due to brake system malfunctions or improper adjustment. 3. Bearing Damage: The rear wheel rotates smoothly mainly because of the bearings inside the hub. However, if these bearings lack lubrication, they may experience increased resistance or damage, causing the hub temperature to exceed the design standard. 4. Tire Overheating: If the tire pressure is insufficient, excessive deformation during operation can lead to overheating. This issue is related to the tire itself and has little to do with the wheel's mechanical structure.