PontiacBonnevilleClub.com

Hello,
I'm just about done with my time over here in the Middle East, and want to get some new wheels for my GXP when I get home. I've been searching through the forums, and understand I can run a 20" wheel. I went to tirerack.com and most of the 20s that say they will fit have these specs, or very close. The wheel itself is 20x8.
Offset: 42mm
Backspacing: 6.18"
Bolt Pattern: 5-115
Rec. Tire Size:245/40-20

What is the range of tolerances for offset and backspacing? I would use their recommended tire size. Thanks!
Joe

You can get away with a little wiggle room on either side of both numbers. Half an inch or so. But remember what visual effect they will have. You don't want the tires sticking out past the fenders or tucked way in. You have to balance offset and backspace. Luckily there should be a good assortment with the appropriate specs.

I've been looking around for specs on the gxp wheel backspacing. Anyone know what the OEM measurement is?

And they are on! 20 inch Zinik Z32 with Kumho tires:




It just rained yet again so will get it all cleaned up and some better pictures.

Oh my............that's nice.

The back brakes look so tiny... But other then that it looks good!

i love em

Thanks! Haha yes from that picture they do like tiny! Maybe the next project lol.

Looks Great Joe! We still need to meet up, seeing as you're so close, lol.

Hey Joe, any chance of getting a front to back shot to give me an idea of the offset?

Sure I'll get some more pictures tomorrow! And Beast yes we do at some point!

dpnewfie wrote:Hey Joe, any chance of getting a front to back shot to give me an idea of the offset?

Awesome, Thanks! They fit as good as they look.

I gotta be honest, when I read:

05joenov wrote:I've been searching through the forums, and understand I can run a 20" wheel.

I shuddered thinking of the awefulness that would follow.

Boy was I happy to be wrong! Those whells look GREAT on that car. Very nice choice.

They look glorious! Nice job! They really fit the GXP body style.

No offense, but I like the stockers better.

Looks cool.

Could be just me but I think the car has this "lifted" look with the 20s on there. Perhaps a lowering kit?

Any sacrifice on ride quality?

Enjoy!

I'm not a fan of the 'oversized 'bling!' rims with bicycle tires' look.

Too much metal, not enough rubber.

Cartoon-ish.

But your opinion is the only one that truly matters. If you like 'em, they're perfect.