2008 Mazda 3...about 2 weeks ago we noticed the car shakes pretty good once we reach 50-60 mph. We needed new tires so we bought some last weekend...a full set...all 4. The shake was still present. So today I went and had the alignment done which we had planned on doing anyways and that helped but not a lot. Went back to the tire shop and asked them to check the balance of the tires and 2 were out of balance so they fixed issue. Well im noticing the the shake still...not as bad but still present. So my question is what else can be wrong? They said the rims werent bent and suspension seemed fine and now im at a lose. Any help will be greatly appreciated. Thanks in advance.

 

Has it been "Road Force" Balanced?
READ: Road Force

Wheel Balancing: Why Do My Balanced Wheels Still Shake? - YouTube

 

Thanks..ill call the tire shop I went to and see if they can do this

 

i had a similar experience with my outback. i deliver mail out in the boonies. a lot of rough, dirt roads, and i am trying to make up time, and practice my dream of rally driving. a few months ago, i get a new set of tires. they are nice and smooth, but, like always, driving on the rough roads is hard on balancing. i lose balance weights all the time. so, i notice a pretty good shimmy. i took the car in to the discount tire where i got the tires 5 times for rebalancing, and it was still there. and they were getting a little upset. i think they were not giving me their best service. so i took the car to a different discount tire, and explained the problem. i could tell they had a much different approach. the result? perfectly smooth again. if the rims arent bent, i say try a different place.

 

Check that the tyres aren't out of round.