You have a tire or tires out of balance.best to get tires road force balanced.
have your front tires rebalanced.
A shake that is that speed sensitive is usually a bent rim, or bad tire.
Check the wheel balance
its not spossed too...you may need to balance your tires
It would be highly unlikely.
Tires need balancing.
Normally this is caused by a tire out of balance or a bent wheel.
balance the tires
Normally this is a symptom of a tire out of balance. Have your tires balanced and this should solve the problem.
i would really like to know myself
possibilityThe car is out of alignment or you have a wheel out of balance.
If it happens when you are driving fast (60-70 MPH) it could be that your wheels are out of alignment.