What finally made me suspect the front tire was, I elevated the front end just enough that you could rotate the tire. Then I placed a fixed pointer on the edge of the sidewall and what I noticed was a deflection of about 1/8 inch. Can't say for sure that was the problem, all I know is that my bike wobbled from the first day I owned it and it went away with a tire change. By the way the Lasertech did not look the least bit worn.