The vehicle just started shaking around 80km/h and smoothed out around 110km/h. Its still doing it. Trying to figure it out before going to the shop.
It is usually best to just tell the shop the symptoms and let them solve the problem. If I said that you needed to fix or replace a part and you told the shop to do that you could be wasting your money . Internet guesses can be accurate or so far off to be completely worthless.
Sounds like tire balance… but as @VOLVO_V70 posted, tell the shop your symptoms and let them find the cause.