17x8.25 tire size 225/45, 235/45 or 245/40?
 

Going to be picking up XXR 527 17x8.25 +35 wheels and the 8.25 seems to be an uncommon width. I read that 225/45 is a recommended size for the stock 17x7 and 245/40 is good for 17x9, would 235/45 fit the bill as it's right in between?

The tires I'm pretty much set on Michelin Pilot Super Sports. I'd prefer the tire to be a bit meatier width wise for rim protection.

235 would be the recommended size for that wheel

Any of those sizes will fit that wheel. I have 225s on the 18x8.75 XXRs. If you want a bit more protection for the rim, go with the wider tires though.

235/45 seems like the widest you could go for that wheel

Just purchased the wheels and 235/45/17 tires from tirecrazy.com Glad I checked them out before going with the ebay pickup/costco. tirecrazy.com really does have crazy prices, i'm actually surprised they didn't charge me tax since they're just a city away (according to their "contact us" page).

just as an fyi I ran a 17x8 enkei nt03+m on my wrx and I fit a 255 on it with 0 issues. Autocrossed with it that way as well. So much tire that I think it actually slowed my stock power car, 245 was always my happy place. Looked very aggressive though. No clue if that would rub on a BRZ but just letting you know that you can go wider.

Im running XXR 527 17x8.25. Just mounted a set of Federal 245/40R17's. Works perfectly for me.

Here's how my car stands now with 235/45/17 MPSS and XXR 527 17x8.25 on Eibach Pro Kit springs. Unsure of the alignment numbers.

Looks great!

for some reason it looks like it's sitting higher... but i can't go any lower, scraping too often already :P just waiting for some black Muteki lug nuts to come in black STI center cap stickers.

a while ago, but did you have any rubbing issues on the fronts? ive got 17x8 rota titans being mounted with 235/45/17 MPSS overnight tonight, the mechanic took a look when i dropped them off and said he thought they would rub in the front, but I think hes wrong. just curious, thanks!

I also want to run 235/45 on 17X8+35 to fill the gap on stock suspension, I'm hearing mix messages some say will rub some say it works, don't want to drop to a 40 cause not many brands to choose from

I run 8's and have used both 225 and 235. the 225 is a more nimble feel and the 235s have better grip however they were different compounds by 2 different manufacturers. Regardless I wouldn't go any wider than 235 on those.

My 94 trans am came with 245s on 8 inch wheels. I switched to 275s on 9 inch wheels (also a factory offering.) I don’t know why people are telling you 245s won’t work. 235 is an oddball size and selection of tires will be limited.

The tires on your Trans Am had taller sidewalls. The taller the sidewall, the narrower the recommended wheel width range will be for a given tire width. For a 245/40/17, the allowed wheel width range is typically 8 to 9.5 inches. So while it will technically "work" on an 8 inch wheel in the sense that it will physically mount, it's pinched down on narrowest wheel possible which is not optimum for handling. The same 245 would be much happier mounted on a 9 inch wheel, which is why it's such a common setup in STX.

I don't know either :iono:

245 width is within industry specs for installing on 17x8 wheels. And, I have been driving 245s since last three years on 17x8 wheels. Even Toyota service technicians said it is perfectly fine :slap: Plus, 245/40-17 is the closest tire size to stock diameter of 215/45-17.

I would go 245 40 17. So many tire choices and there will always be an option if you run in to an emergency.

see glhs386 response above ^^^

Measuring rim width for a 245/50-16 is 7.5", an inch narrower than 8.5" measuring rim for a 245/40-17.

Rim width range for 245/50-16 is 7" to 8.5"
Rim width range for 245/40-17 is 8" to 9.5"

For a *handling* intensive fitment, you kinda want to be on the wide end of the rim width range.

17x8 is not a good wheel width for a 245/40-17 IMO. It is the narrowest allowed for that tire size. I'm running 245/40-17s on 9" wheels for street/track.

We are talking about personal preferences within allowed industrial standards. I went with lighter 17x8 wheels on 245/40-17. I don't see any handling problem either. One can also argue about the advantages of lighter wheels. I don't even like the looks of a stretched tire or super flush setups. Plus, practically, there is much larger chance of curb rash with 245s on 17x9 wheels. Furthermore, 17x9 will most probably rub stock suspension or require coilovers, if it is not a super tight fit .......

I pass, thanks. But, I am happy that your setup works for you.

Yeah, it's within spec, I agree it can be down to personal preference... I've never been a fan of the super-stretched look anyway... But for me my street wheels/tires are also sometimes track time-trial wheels/tires, so to optimize grip from a 245, a 9" or 9.5" is the way to go.

Street only, a bit of sidewall pooch isn't necessarily a bad thing and can act as more of a "rim-protector". I still prefer staying in the middle of the recommended rim width range but it's not a huge deal.

Car looks good. Running 245 on a 17x8 rim. No issues for me either. It's got a nice meaty look.

Sent from my GM1915 using Tapatalk

I'm running 245/40R17 RE71Rs on track on a 17x8 wheel, no issues.

Every tire is a little different though, so confirm the brand you're going with that 8.25 is in their acceptable range, this information is usually on tirerack under the specs for the different sizes, but generally speaking 235 or 245 should be fine on a 8.25 wheel.

So rubbing?
 

So how much did you lower the car? And just to confirm, you ARE rubbing? The fit looks so dope, it suck if that's the case :/

Eibach ProKit lower the car 1" and i highly doubt hes rubbing. If he is it might be on the fender since those tires a little taller than OEM specs. But like i said im pretty sure he is not rubbing because of that offset and and width. 17x8 +35 will give a flush fitment if you plan to lower your car 1"