Ya the tire will start to roll. It'll feel like Winter tires.

 

Like 63NovaSS states, it's all about what you're doing with it. You can fit wider then 235's on stock rims, and not have any issues with rubbing etc. but cornering will suffer. Not an issue for drag applications of course, but it is for spirited street driving and most definitely for road track. I've never gone beyond 235s and that's on 8" wide OZ wheels.