245-45-17 Tires
04-24-2010, 05:20 PM
#2
are you drunk?
04-24-2010, 06:29 PM
#5
Maaaaaybe. 
I don't know. It depends on if the tires have lip guards, does it not? I know the Pirellis I have sit flush with the rim, and they're 235's, so there's not really any protection if I rub up against a curb.
Don't look at me. I just woke up from a nap. So I take no responsibility for anything that makes no sense. I misread his post, looking back now.
For some reason, I thought he was undersizing. Not oversizing.
I don't know. It depends on if the tires have lip guards, does it not? I know the Pirellis I have sit flush with the rim, and they're 235's, so there's not really any protection if I rub up against a curb.
Don't look at me. I just woke up from a nap. So I take no responsibility for anything that makes no sense. I misread his post, looking back now.
For some reason, I thought he was undersizing. Not oversizing.
Last edited by Mr. Brett; 04-24-2010 at 07:42 PM.
04-24-2010, 06:57 PM
#6
I was running Firestone Firehawk GTz 245/45-17's on stock SE rims and had NO problem. Correct height, super close to correct speed reading, great traction.
I will be transferring these same exact tires from my OEM's to my G35 coupe 17" rims on Monday.
I will be transferring these same exact tires from my OEM's to my G35 coupe 17" rims on Monday.
04-24-2010, 07:01 PM
#7
he said hangover
04-24-2010, 07:37 PM
#10
).I am sure there are others that would definitely extend farther from the lip than desired, but not these.
04-24-2010, 09:05 PM
#11
yeah, those seem alright. Mine are pretty wide so they are pretty far off the lip, but im sure there are some tires that are perfectly vertical to the lip. IMO, it depends on what youre using the tires for. If theyre your everyday street tires you probably shouldnt risk buying tires that are too wide and just stick with 235 or skinnier. I would hate to buy tires that turn out to be too wide for the wheels
04-24-2010, 09:50 PM
#12
There really isn't any standard as to how big a 245/45/17 tire will actually be. Some will be narrower than others and fit properly. You might want to check with each manufacturer of the tires you are considering and see what the minimum rim width they recommend.
04-25-2010, 08:07 AM
#13
Senior Member
Join Date: Jul 2001
Location: state of confusion
Posts: 1,341
Short verison: you aren't going to find many makes/models of 245/45-17 for which a 7" wide rim is considered appropriate by its mfr.
Longer: I must have looked at 25 or 30 over at tirerack.com and all but one of those lists 7.5" as the minimum recommended width. I was picking more from the LESS performance oriented tires, so if anything 1 out of 30 is a higher rate of 'hits' than what you'd expect out of the more than 100 just at tirerack.
Being half an inch under spec exposes you to greater sidewall heating from flex. It isn't "pass-fail" at 7.5" wide, but you are giving away some of your tires' margin for no particularly good reason (appearance doesn't count as a good reason where an increased risk of tire failure is concerned) by doing so. You could get away on 7's for a pure show car or for very short term use under unusual circumstances, but I'd never suggest doing so for normal use on a daily driver.
There are plenty of old threads on this topic, dating back six years or more. Tire sizing vs rim widths have not changed in the meantime.
Norm
Longer: I must have looked at 25 or 30 over at tirerack.com and all but one of those lists 7.5" as the minimum recommended width. I was picking more from the LESS performance oriented tires, so if anything 1 out of 30 is a higher rate of 'hits' than what you'd expect out of the more than 100 just at tirerack.
Being half an inch under spec exposes you to greater sidewall heating from flex. It isn't "pass-fail" at 7.5" wide, but you are giving away some of your tires' margin for no particularly good reason (appearance doesn't count as a good reason where an increased risk of tire failure is concerned) by doing so. You could get away on 7's for a pure show car or for very short term use under unusual circumstances, but I'd never suggest doing so for normal use on a daily driver.
There are plenty of old threads on this topic, dating back six years or more. Tire sizing vs rim widths have not changed in the meantime.
Norm
Last edited by Norm Peterson; 04-25-2010 at 08:11 AM.
04-25-2010, 08:18 AM
#14
Senior Member
Join Date: Jul 2001
Location: state of confusion
Posts: 1,341
You might have better luck copying the thread title and pasting it into a search window.
Norm
04-27-2010, 01:41 PM
#15
Senior Member
Join Date: Apr 2008
Location: Connecticut
Posts: 392
I was debating the same issue when I bought tires for my 03 Max. I was considering the 235/50/17 & the 245/50/17. I ended up playing it safe and went with the 235/50/17's and I am glad I did. I use this tire calculator alot when shopping for tires. Good luck.
http://www.1010tires.com/TireSizeCal...?action=submit
http://www.1010tires.com/TireSizeCal...?action=submit
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