transamguy91

I've been needing to purchase new tires for a while, and I happened across a good deal for some BFGoodrich Comp 2 tires that would fit my staggered z06 wheels, but now I'm having a bit of concern that I may have jumped the gun, due to the difference in sidewall heights.

The combo is
Front: 275/40/17
Rear: 275/35/18

I'm honestly not sure if the rears are 18 x 10.5s or 18 x 9.5s.

Did I screw this one up? Is this gonna look goofy? I know people usually run wider rears and skinnier fronts.

Edit: It might help to list current tire sizing. The wheels and tires were put on by the previous owner so that's why I'm not sure if they are 18 x 10.5s or 18 x 9.5s

Current combo:
Front: 245/45/17
Rear: 275/40/18

transamguy91

bump.

1BAD02WS6

iTrader: (-1)

If the wheels are 10.5 wide I would run a 295/35/18 in the back

transamguy91

Yeah problem is I didn't know if they were 10.5 or 9.5, and I had to go ahead and place an order as I'm going on a long trip next weekend and wanted them to be in before I left so I could get them installed.

Also I figured since there were 275s on them now, which is the correct size for 18 x 9.5s, that maybe they were 9.5s.

What do you think in the difference of the sidewalls?

99Bluz28

iTrader: (35)

Technically this will be perfect (275/40/17 front and 275/35/18 rear) since their both the same height and the abs system will be happy. Appearance wise it'll look very odd , because the rear tires will have a noticeably shorter sidewalls (1/2") than the front tires. I'd go with a 275/40/17 up front and a 275/40/18 in the rear and it'll look good!

transamguy91

Crap, I was worried about it looking strange. No safety issues at least right?

If I did that though wouldn't the front tires be 1" shorter than the back?

1/2" shorter sidewalls at least -sounds- so small that I'm surprised it's so noticeable.

Eh well since I ordered the tires before I even posted this, I'm getting them in Wednesday either way. Maybe I can find a local place that has some 295/35/18s or 275/40/18s I can swap with.

Also is there any way I can tell whether the Z06 rears are 10.5 or 9.5 without jacking the car up and removing the wheel or anything? I won't have my tools with me for another week.

99Bluz28

iTrader: (35)

FYI you can get the BFG Comp2 275/40/17 (2 front), 275/40/18(2 rear) for $682 shipped from D.T.D..
http://www.discounttiredirect.com/di...t/showCart.do?

99Bluz28

iTrader: (35)

How do your current 275/40/18 look on the rear wheels, do the sidewalls look stretched like the wheel is to wide?
You won't have any safety issues with the combo you ordered.

transamguy91

Yeah DTD is where I got my set, for about that same price.

I'm honestly not sure what I'd be looking for in terms of stretched sidewall, never seen one. I mean, they look the same as the front I guess.

Edit: Just looked up images of a stretched sidewall, so I see what you mean. There is no bulging or anything where it looks like the wheel is stretching the tire. So that probably does mean its an 18 x 9.5, huh?