An unbalanced tire is one of the most common causes of shaking in a motorcycle. When a tire is unbalanced, it causes the wheel to wobble, which in turn creates a vibration that can be felt through the handlebars, seat, and footpegs.
2. Bent rim(s)
A bent rim can also cause a motorcycle to shake. When a rim is bent, it causes the tire to run unevenly, which creates a vibration that can be felt through the handlebars, seat, and footpegs.
3. Damaged or loose wheel bearings
Damaged or loose wheel bearings can also cause a motorcycle to shake. When wheel bearings are damaged or loose, they allow the wheel to move excessively, which creates a vibration that can be felt through the handlebars, seat, and footpegs.
4. Loose or damaged driveline components
Loose or damaged driveline components, such as the chain, sprockets, or driveshaft, can also cause a motorcycle to shake. When driveline components are loose or damaged, they can cause the motorcycle to vibrate excessively.
5. Engine problems
In some cases, a motorcycle shake can be caused by an engine problem. For example, a loose or damaged piston, a worn camshaft, or a bent crankshaft can all cause a motorcycle to shake. If you suspect that your motorcycle's shaking is caused by an engine problem, it is important to have it diagnosed and repaired by a qualified mechanic.
6. Incorrect tire pressure
Incorrect tire pressure can also cause a motorcycle to shake. When tire pressure is too low, it can cause the tires to bulge and wobble, which creates a vibration that can be felt through the handlebars, seat, and footpegs. When tire pressure is too high, it can cause the tires to become stiff and ride harshly, which can also create a vibration.
7. Worn suspension components
Worn suspension components, such as shocks, forks, and bushings, can also cause a motorcycle to shake. When suspension components are worn, they are unable to properly absorb bumps and vibrations, which can cause the motorcycle to shake.
8. Improperly installed handlebars
Improperly installed handlebars can also cause a motorcycle to shake. When handlebars are not installed correctly, they can put stress on the steering head, which can lead to shaking.
9. Defective steering head bearings
Defective steering head bearings can also cause a motorcycle to shake. When steering head bearings are defective, they allow the steering stem to move excessively, which creates a vibration that can be felt through the handlebars.
10. Loose or damaged frame components
Loose or damaged frame components, such as the steering head, swingarm, or subframe, can also cause a motorcycle to shake. When frame components are loose or damaged, they allow the motorcycle to flex excessively, which creates a vibration that can be felt through the handlebars, seat, and footpegs.