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Widest tire on a 15x7 rim? #495373
10/12/09 02:38 PM
10/12/09 02:38 PM
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Third Stone from the Sun
Scotts72Rallye Offline OP
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I was curious what's the widest you can go on a steelie?
Scott


1972 Dodge Challenger Rallye
UNDER CONSTRUCTION
Re: Widest tire on a 15x7 rim? [Re: Scotts72Rallye] #495374
10/12/09 02:42 PM
10/12/09 02:42 PM
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Truckville, the capital of NY
85_Ram_4speed Offline
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Ideally? or just the widest? If your just going for the widest that is a comprmise between the two, i say 275/60r15 or 285/70r15. One is 28" tall, the other i think is about 30" tall. You didnt mention the vehicle, so either of these may not fit.


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Re: Widest tire on a 15x7 rim? [Re: 85_Ram_4speed] #495375
10/12/09 02:56 PM
10/12/09 02:56 PM
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furious70 Offline
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275/60/15's on a 7" rim will prematurely wear the middle of the tire because it puckers. I have the tires to prove it. 255/60(70)/15 is the widest that is practical for a car you plan on putting enough miles on to wear out tires. If you're just going to the local cruise in, it won't matter to you.


70 Sport Fury
68 Charger
69 Coronet
72 RR
Re: Widest tire on a 15x7 rim? [Re: 85_Ram_4speed] #495376
10/12/09 02:58 PM
10/12/09 02:58 PM
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Scotts72Rallye Offline OP
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They are going on my 72 Challenger just to roll around on/local cruise but I still want that fat and skinny look. Thanks for the replies.
Scott

5540721-fatandskinny.jpg (343 downloads)

1972 Dodge Challenger Rallye
UNDER CONSTRUCTION
Re: Widest tire on a 15x7 rim? [Re: furious70] #495377
10/12/09 02:59 PM
10/12/09 02:59 PM

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Quote:

275/60/15's on a 7" rim will prematurely wear the middle of the tire because it puckers. I have the tires to prove it. 255/60(70)/15 is the widest that is practical for a car you plan on putting enough miles on to wear out tires. If you're just going to the local cruise in, it won't matter to you.



lower the tire pressure. I have 275/60/15's on mine for 6 years now with normal wear.

Re: Widest tire on a 15x7 rim? #495378
10/12/09 03:03 PM
10/12/09 03:03 PM
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furious70 Offline
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yes, but running around on squishy tires isn't the right option either. For me, Weld Draglites don't come in the backspace I need to make 15x8's fit, so it was a compromise I made.
For the record, once it was clear I was wearing the tires I did drop the psi, but that starts to cause issues with your sidewalls that are already bulging over the side of the rims in the first place.


70 Sport Fury
68 Charger
69 Coronet
72 RR
Re: Widest tire on a 15x7 rim? [Re: furious70] #495379
10/12/09 03:13 PM
10/12/09 03:13 PM

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not talking 12psi here. 28-30 psi for my BFG drag radials. my car isn't a handling demon to
begin with, and the lower psi cushions the potholes lol. some other tire brands
with multi layer sidewalls will handle the lower psi no problem. and i highly doubt that
anything over 20psi you'll get the sidewall folding over.

Re: Widest tire on a 15x7 rim? #495380
10/12/09 07:59 PM
10/12/09 07:59 PM
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Junky Offline
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I run a 275/60/15 tire on a 7" wide rim. It works OK, but the tire has a slight bulge look. I run 'em at about 32 psi. Seems to work OK that way. However, I'm switching to a new style wheel that will be an 8" wide wheel on the back with the same tire.


2010 Black Challenger SE <> 3.5 V6
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Re: Widest tire on a 15x7 rim? [Re: Junky] #495381
10/12/09 08:47 PM
10/12/09 08:47 PM
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Balt. Md
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These are 30 x 9 Hoosier radial slicks on a 15 x 7 wheel. They fit pretty good and work fine as I just pulled a new best 60 ft of 1.57 on them Saturday night. Ron


Re: Widest tire on a 15x7 rim? [Re: Scotts72Rallye] #495382
10/12/09 09:12 PM
10/12/09 09:12 PM
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the boonies
aarcuda Offline
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ah shoot, ive run 295/50-15's on em

Re: Widest tire on a 15x7 rim? [Re: aarcuda] #495383
10/12/09 09:24 PM
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Manitoba, Canada
DaytonaTurbo Offline
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I run 275/60/15 on 7" wide rims. Been doing this for 6 years and nothing but normal wear on the tires.

Re: Widest tire on a 15x7 rim? [Re: DaytonaTurbo] #495384
10/12/09 09:33 PM
10/12/09 09:33 PM
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St. John's Newfoundland
440newport Offline
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I run 275/60's on a 15x7 cop wheel and they're fine, but I wouldn't run any wider in a 60 series or lower. The taller the sidewall, the wider the tire can be and not be so bulged out, at least to a point.

Re: Widest tire on a 15x7 rim? [Re: DaytonaTurbo] #495385
10/12/09 09:36 PM
10/12/09 09:36 PM
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Carstairs, Alberta, Canada
dave571 Offline
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FWIW

295/50/15's after a lot of abuse on a cop wheel.


Tread depth looks pretty even inall the grooves

These are 305 50 15/s on the same wheel/car


Re: Widest tire on a 15x7 rim? [Re: dave571] #495386
10/12/09 10:20 PM
10/12/09 10:20 PM
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the boonies
aarcuda Offline
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told ya they would fit!







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