Civic EG

Hey coupers!
It was my first time to ever drive on an intersatate 2hours from home.. so i actually finally got the car to go atleast 80
ive only had the car for about a month now.. so i noticed that the car starts to shake from 40-61mph then i gets smooth again..
please Help..
Im thinking it might be the shocks? well hopefully its only the shocks..and not some other suspension problems..
thanks.

Probably worn tires, or out of alignment

the tires are new and balanced..
the steering wheel is straight..
i know it doesnt necesesarly mean its aligned when the steering wheel is straight..well im asuming the alignment might be on another suspension prob yeah?

Could it be a bent wheel?

It could be badly worn bushings. Does the car make a harsh noise when it goes over bumps?

The rear end of the vehicle could be out of alignment as well.

Maybe a worn out wheel bearing? Does the car loose speed quickly when you let of the gas?

Just throwing some stuff out there.

since the wheels and tires have just been balanced and the tires are new i would guess that it is a bent wheel or bad cv joints.

Ive been driving the car to pensacola and back twice a week which is about 2.5hours away!! surprisingly the shakey went away!? I know i should still cehck on it, but itll be fine till i have time.. weird tho!? well the car hasnt givin me any major problems sofar. i totally lucked out on this one.