The tires are out of balance...may need tires, or rim(s) are bent
You probably need to get your tires balanced. Or replaced. If the bias goes (steel belt breaks or shifts), the car will waddle at low speeds, and the steering wheel will shake at high speeds.
It could be a shifted belt in one of the tires.
im guessing it has something to do with velocity and road conditions. yet again, if i'd imagine that a steering wheel shouldn't shake.... that can't be good.
Bent rim. You may rotate it to a rear wheel to reduce or eliminate wobble.
High speed vibration is often an indication of a wheel that is out of balance or a bent rim. It can also be a bent driveshaft or bad U-joint. Vibration when you brake at high speed is almost always a warped rotor on the disk brakes.
This can be a warped rotor or tire out of balance. If it only happens when braking it is a warped rotor.
* Smaller Turning Radius * Better Straight Line Stability * Better High Speed Maneovers * Improved Corning Performance * Improved Steering Response
well... there are many different causes for vibrations. The most common cause for steering wheel vibration at high speed is poor wheel alignment.
At low speed: Damaged or failed tire, bent wheel, damaged brake, damaged axle. Dangerous failure of a wheel bearing. At high speed generally a wheel balanace problem. While braking a bent or warped brake component.
Usually it's a wheel balance issue, but it can also be worn steering components, a bent wheel, a faulty tire or a bad CV joint.
Vibration of the tire is caused by a uniformity parameter called "variation of radial force". Usually a vehicle's steering wheel will vibrate (called torsional nimble) at a certain speed. This vibration is caused by the harmonics of this radial force. Picture the side view of a tire with different size springs within it. The force of these springs cause a distortion of this force and you feel this distortion in the steering wheel.
COULD BE FRONT TIE ROD END