Hey guys, I am getting a vibration in my steering wheel at around 110-120 km/h or around 65-70 mp/h. It's nothing crazy but it's noticeble and it wasn't there before. Now I had 4 winter tires put on 3 weeks ago, and I went back to the shop that put them on for me because I thought it was the balance. They said that the weights were all there, and that there shouldn't be an issue with the balance, but if I wanted to I could go and find a place that does "high speed balancing". I've never heard of this. Anyways the strange thing is that when I got the tires put on there wasn't any vibration, I started getting the vibration about a week ago, which I guess makes the balance good. I'm thinking it might be an entirely different issue, I know my front struts are due for replacement, could they be giving me the vibration at higher speeds? I don't have any vibration driving slower on city streets. Car is a 2001 Lexus ES 300 with 187,000 km or 116,000 miles. What could be the issue?