Bad tires

[2strokd]

Anybody else ever get a square tire . I bought a set of barely used tires off the bay a while back and while mounting them on my wheels i noticed that the guy i bought them from had the rear mounted backwards on the rim . I didnt like the looks of that and i think i should have went with my gut and contacted the guy i bought em from. I switched carbs the other day and had Skeedr on the center stand while tuning. I noticed my back tire looking like it had a busted belt or something cause it is out of round. this whole time i am thinking i need to balance my rear tire bad, now im thinking new tire . He said the tires had about 300miles on them, you think thats enough to mess em up? Im thinking it is but have never tested this theory and dont plan on it lol.

[90GTVert]

My first Triton had the front tire mounted in the wrong direction from the factory. I put probably 3,000 miles on it without issue before replacing it with a Michelin Bopper. I've had tires square off by having the center section of the tread wear faster than the outside (since you spend most of your time upright unless you live in some awesome twisty area) but never had one square off the way you describe. I know they run the belts in these tires a certain way for the direction they are supposed to be mounted, so I'd say it is possible that that's the problem. I've seen a friend's 10" wheeled midbike get a tire out of round for no apparent reason too, so it may be a fluke.

[2strokd]

I figured i would get another one(new this time) and try that out, cant ever have to many extra tires. The front is smooth and round, but it was mounted correctly on the rim so i guess the incorrect mounting caused the rear to mess up.
It has been this way since i got it but is getting worse i think.

[wildfire]

The Wildfire I purchashed in Jan 2009 origianally had an enduro type of tire on it. After 5000km of wear and numerous tire plugs I replaced them with Kenda 120/70-12. Instantly the vibration went away. I am estimating at least double the tire wear. I guess overall a good decision.