What Causes the Heavy Rotation of an Electric Vehicle's Rear Wheel?
2 Answers
The tightness in an electric vehicle's rear wheel could be due to overly tight brakes or brake lock-up. Below are specific solutions: 1. Brake malfunction requires replacement: Loosen the rear wheel brake cable or adjust it to an appropriate tension—neither too loose nor too tight. If the brakes remain locked, it indicates a malfunction that needs immediate replacement. 2. Controller malfunction: Disconnect the motor wire. If the wire is loose, it suggests controller failure leading to wire damage, necessitating controller replacement. 3. Bearing damage or lack of lubrication: Damaged bearings require replacement. If undamaged, the tightness may be due to insufficient lubrication; applying some grease to the bearings should resolve the issue.
Last time my e-bike's rear wheel was as hard to turn as pushing a cart. When I tried fixing it myself, I found the rear brake pads were too tight against the rim. After slightly loosening the brake screws, it became much easier. Additionally, if the wheel bearings are worn or aged, turning them will produce creaking sounds with increased resistance, requiring replacement of new bearings. Low tire pressure is also a common issue - being about 30% below the recommended value makes rolling more laborious, so regularly checking and inflating tires can prevent this. A chain that's too tight or clogged with grime can also affect rotation - just clean and lubricate it. The rear axle nut might also be over-tightened and need slight loosening. Trying these simple checks yourself is quite convenient, like first testing tire pressure then examining brake positioning. If that doesn't work, take it to a shop - it saves hassle while ensuring daily riding safety.
