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View Full Version : Another tire question.....what's the best on 17X7 rims???



lube70
12-21-2005, 08:51 PM
I called Tires.com and they told me that the 245/45/17's are too big on the 17X7 rims. It would not be good for them.

I need some "real world" advice from anyone running this size rim or knowledge of tires and rims.

Any help is appreciated!!!!

Thanks in advance,

Don

Scott Long
12-21-2005, 10:35 PM
I run 245/45/ZR17 but might go to 245/50/17 since my speedo is off. They fit fine. I'm lowered with eibach springs too. No rubbing.

XxSlowpokexX
12-21-2005, 11:03 PM
245/45/17's will look silly..Take a look at my SC in my member page pictures. Unsure what the 98 cobra rims are but a 255/50/17 fit great...I thinmk they are 17*8 however

lube70
12-22-2005, 01:44 AM
245/45/17's will look silly..Take a look at my SC in my member page pictures. Unsure what the 98 cobra rims are but a 255/50/17 fit great...I thinmk they are 17*8 however


I am curious about what silly means... Too small...Too much space....

More details....

Don

fast Ed
12-22-2005, 03:01 AM
Don, 245-45 tires have too short a sidewall to pull in on a 7" wide wheel. 7.5" is the minimum for that tire size, 8" to 8.5" is better.

245-50-17 will go on 7" wheels, since you have a taller sidewall, more flex. They will be the same diameter as stock tires. 235-50-17 would be a decent choice as well. Only about 1/2" smaller diameter than stock.


cheers
Ed N.

Nettlesd
12-22-2005, 10:27 AM
How about a 225-55-17. It keeps the same stock height and is a perfect fit on a 17X7 rim.

fast Ed
12-22-2005, 01:36 PM
Duane, you are correct about that. I didn't mention that size because most of the guys after wider tires than 225s when they go up to 17". :)


cheers
Ed N.

JStudrawa
12-22-2005, 01:47 PM
I personally like Fast Ed's 255/45/18 set up. Our cars have a thin line to walk when it comes to balancing car bulk vs. wheel well vs. tire sidewall bulk.

My opinion of course.

http://www.sccoa.com/member/images/nicholson7.jpg

CaifanSC
12-22-2005, 01:52 PM
so is the 245 the widest we can go on a 17 x 7" wheel?

fast Ed
12-22-2005, 03:08 PM
You could squeeze 255-50 on, as many people do with the stock 16x7" SC wheels. They will fit, but it's certainly not an ideal match. 10" of tire on 7" of wheel ... you do the math. ;)

While talking on the phone with Don, he mentioned that the car he's putting these wheels on is at stock ride height, and may be lowered a maximum of 3/4" in the future. Based on that info, I suggested 235-55-17. This is a fairly common OE size, so there are more choices than in 235-50-17 or 245-50-17. It would be a bit taller than stock at 27.1". But that works fine, especially on a stock ride height car. My car, lowered 1-1/2", has 27.0" tall tires (255-45-18) that fit nicely. As Damon mentioned, he has 255-50-17, which are also about 27.0" tall.


cheers
Ed N.

XxSlowpokexX
12-22-2005, 06:36 PM
I meant silly as in to much wheelwell. The 235/55 sounds liek a great deal as the 255/50 will most likely bulge a bit on a 7 inch rim

Nettlesd
12-22-2005, 10:40 PM
Ed,

My car is lowered about 3/4" with the Vogtland springs. Would you recommend a 225-55-17, 235-55-17 or a 235-50-17 tire?

XxSlowpokexX
12-22-2005, 10:41 PM
235/55/17!!!!! I;ll be Ed for now

1FASTSC
12-22-2005, 10:45 PM
I have 235/45x17 on my 17x8 wheels and I believe the max I can go is like 255 or maybe a little bit bigger.

I would say they wouldn't fit a 7inch rim.

fast Ed
12-23-2005, 12:14 AM
Ed,

My car is lowered about 3/4" with the Vogtland springs. Would you recommend a 225-55-17, 235-55-17 or a 235-50-17 tire?

Duane, any of those would be fine really. It comes down to how much you want to pay, and how good a tire you're looking for. 225-55-17 and 235-55-17 are available in a bunch of different brands and models, with prices from $75 to $200 per tire. The 235-50-17 has a much more limited selection, mostly higher end, higher priced models.

Also, the other factor to consider is what look you prefer. Do you like to have the fenderwells filled up height-wise? If so, the 235-55-17 is the way to go. Do you prefer the appearance of shorter sidewall tires? Then 235-50-17 is going to look better for you.

The 235-45-17 size that 1FASTSC has mentioned needs a minimum of 7.5" wheel width according to various tire manufacturers' specs. Also, it's somewhat small in diameter for the MN12 fender openings. Average size would be around 25.3", roughly 1-1/4" smaller in diameter than the stock SC tires. Even on a lowered car, the fender gap would be quite large. This is more of an issue for some people than others. I prefer to have full wheelwells. :D

cheers
Ed N.

1FASTSC
12-23-2005, 02:30 PM
I had 245/45x16 on my SC and it rode rough as hell.