Im looking to buy a new set of tires since the ones im on now are looking like im on slicks. So i wanted to get wider tires to put on my stock 04 sti bbs rims but i am not sure what the widest i can fit on the rims or if i can go any wider. i wanted to put 245's but was told that they wouldnt fit so i was wondering if i could put 235's. any info would be appreciated. TIA!

 

245's should fit.

 

I kind of need to know too. So if any one could put up some information that would be just fantastic! yeah!

 

At www.tirerack.com when you look up the specs on a tire, it gives a figure for "Rim width range" - you can probably use that as a guideline.

For instance:

Potenza RE050
245/40/17 = 8.0-9.5" range
245/45/17 = 7.5-9.0" range

Tirerack says it's possible to go outside those ranges, but "staying within the approved rim width range helps assure that the tire's internal stresses are within its design parameters."

 

I'd go no larger than 245. 235's are perfect.

 

On a 7.5, I would agree 235 being optimal

245s will fit, but you may get a lot of sidewall bulge/slop

I have a sweet set of 235/45/17 Advan A046s FS in the classified section BTW

 

if it was summer i'd be ALL OVER those tires. But I just bought a set of tires. They're do for delivery today.

 

Yeah I got some pzero neros yesterday (used but in great condition)

 

dang stretched. im running 225/45/17 for 17x8's

 

Kinda off topic but will 245/45 fit on a 17x8 rims without rubbing?

 

245/40 wont rub, dono bout 245/45 tho

 

Depends on the offset of the wheel

 

Thanks a lot guys your info has been very helpfull, really appreciate it!

 

wont the sidewall fold like origami if tire is too wide for wheel? that doesnt seem good for performance

 

A bunch of folks run stiffer sidewall tires when they go wide... Azenis 615's in 245/45 and Yoko Neovas in 245/40 are pretty good on 17x7.5 or 17x8.