Good question! The car wheels are out of alignment,or warped. or the tires are out of balance. The shocks or struts are worn out. There are other parts in the wheel mounting worn and can't maintain straight forward movements.
Bad tires and bad alignment can cause the car to shake at certain speeds.
Tires are out of balance. Have the tires balanced.
You're tires weren't balanced properly
tires out of balance?
yes
That means person inside car is either too heavy or something like a toy is caught in engine
Have your tires checked out! Body dithering on the driving comfort and handling judgment will have an effect. In the case of a transmission shaft deformation caused by the unbalance, generally, this happens in the chassis of the car collision more, but a lot of auto parts have shockproof.
balance front tires
miss alignment of tires
You have a tire or tires out of balance.best to get tires road force balanced.
No,but tires out of balance will cause this. Have them balanced and rotated.
If it only happens when you are braking I would suspect warped brake rotors. Other reasons the front end could shake would include unbalanced tires or the vehicle needing realignment. Whatever the case may be; driving a car in this condition is unsafe and you should repair it or have it repaired before you drive it again.