* Bent or damaged front forks. This can also cause the front wheel to wobble or shimmy.
* Improperly inflated front tire. A tire that is too soft or too hard can cause the front end to vibrate.
* Loose or damaged steering head bearings. This can cause the handlebars to feel loose or wobbly.
* Improperly adjusted steering stem nut. This can also cause the handlebars to feel loose or wobbly.
* Worn-out or damaged front brake pads. This can cause the front brakes to grab or pulsate, which can be felt in the handlebars.
* Loose or damaged front fender. This can cause the front fender to vibrate or rattle, which can be felt in the handlebars.
