Donnie's GTS

is it worth going to a 275 from a 245 on a stock 17x8 bullitt rim?

mrtstang

No, it will bulge out really bad, and not be a good fit.

WannaBeGearHead

+1

Don't get the 275 until you have a 9" wide wheel.

vanquish

Bulges a little bit just go to a 40 height instead of a 45. I still think it's worth it and it looks better than the stock tire width.

nascrchi

It will buldge out but nothing bad will happen. I've been running 275's on an 8'' for years and nothing happens. The only thing that will happen is you will want a wider wheel for a wider tire, say a 315. It's fine man go ahead.
I currently have a 275 out back and 245 out front.

WannaBeGearHead

This is taken straight from the "Choosing a new tire" sticky:

"Oversized: A wider tire will not always offer improved handling/traction and depends on proper fit to wheel itself. A tire usually performs best when the sidwalls are straight down from the wheel. This keeps the surface area of the tire, AKA contact patch, flat on the road surface and as the tire was designed. If one were to install a 275/40, for example, on an 8" wheel, you would have a bit of bulge on the sidewalls. This bulge creates some sidewall flex when cornering as the wheel is undersized and will "float", for lack of a better term, side to side within the tire under lateral loads. So when you go around a turn, the tire will stay on the road surface and the sidewall will flex more than designed. This flex will allow the wheel to somewhat "roll over" the sidewall and the tire will under perform when driven hard around a turn. The surface area in which the tire bead meets the wheel to retain air pressure and seal, can be reduced and leaks are more likely as well. The taller the tire in profile measurement, the somewhat greater variations of wheel widths in which it can be installed. The above has lots of variables and is a general statement. Not everything mentioned will happen in every case, but more likely than not."