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Unread 08-13-2012, 06:51 AM   #1
faticone
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Tire Sizing Question

Hey All.
I have been looking for some local sale Rubicon take-off's (Connecticut area if anyone has for sale) for a while now, with no luck. I am getting to the point where I need to replace my stock SR-A's pretty bad.

I have seen a lot of people running 285-70-R17's when making the jump to a little larger tire on a stock suspension.

Is there any reason why there are not more 255-80-R17's out there? a little larger, same profile as the stock 255-75-R17's.

Will either of these work with the stock rims as well with no issues, rubbing, etc.?

Thanks in advanced!

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Unread 08-13-2012, 07:11 AM   #2
Wavedatya
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The reason i think people don't go with 255's is for a beefy look. I put on 275/65/18 and no issues. Exact Same pretty much as the 255/70/18 stock but a little wider. My tires seem fine on stock rims but a 285 although not that much of a difference may not sit on rim safely.

255-285 is a 30mm difference but may not work. Even mine look a little sketchy lol.

With a 17" rim you'll prob need a 275/70/17 and that's a weird size. Look for a 265/65/17 and I'm pretty sure those are the tires that come on a dodge ram with the 17" rim size and there should be lots on CL

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Unread 08-13-2012, 08:17 AM   #3
jwmbishop
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Quote:
Originally Posted by faticone View Post
I have seen a lot of people running 285-70-R17's when making the jump to a little larger tire on a stock suspension.

Is there any reason why there are not more 255-80-R17's out there? a little larger, same profile as the stock 255-75-R17's.
Most people want to increase the footprint. More rubber touching the ground equals more traction. Increasing diameter only increases the footprint at low aired down state (by more radius to "squish") - increasing cross section increases the footprint at both road pressure and aired down pressure.
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Unread 08-13-2012, 08:38 AM   #4
faticone
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Really good information!

The 285/80r17s would work with standard stock rims?
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Unread 08-13-2012, 03:29 PM   #5
Caribic-TJ
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Quote:
Originally Posted by faticone View Post
Really good information!

The 285/80r17s would work with standard stock rims?
I didn't know they make 285/80R17 , I am very happy with my 255/80R17 BFT MT2s, no rubbing at full turn.
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Unread 08-13-2012, 07:37 PM   #6
faticone
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Originally Posted by Caribic-TJ View Post
I didn't know they make 285/80R17 , I am very happy with my 255/80R17 BFT MT2s, no rubbing at full turn.
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Fat fingers on an iphone got the best of me.

I think the best option for me is the 255/80 17's GY duratrac/BF km2's or a pair of 255/75R17 BFG KM's
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Unread 08-14-2012, 04:45 PM   #7
rubiwannabe
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Quote:
Originally Posted by faticone View Post
Fat fingers on an iphone got the best of me.

I think the best option for me is the 255/80 17's GY duratrac/BF km2's or a pair of 255/75R17 BFG KM's
come try my wheel/tireswell bolt them up
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Unread 08-14-2012, 04:50 PM   #8
faticone
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Quote:
Originally Posted by rubiwannabe

come try my wheel/tireswell bolt them up
I would love to, but I think you're a little bit out of my price range. If you're willing to drop a price or help me out, PM me, maybe we can work a deal. I am definitely interested
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Unread 08-15-2012, 07:26 AM   #9
billy mo
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Life was much easier when all you had to say was 33x12.5x15.
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Unread 09-04-2012, 08:38 AM   #10
dongalonga
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Hey your inbox is full so I will post here:

Paypal would be fine as long as it was from your bank account as a gift. That way I don't get charged the fee. I have a couple of other interested buyers so let me know ASAP.
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Unread 09-04-2012, 09:02 AM   #11
02Tahoe
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Cooper AT3 LT275/70R17 on a stock Rubicon. They seem to have plenty of room, though I haven't done any off road yet. They are smooth and quite on pavement and retain the same appearance of aggressiveness in my opinion.
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Unread 09-04-2012, 09:33 AM   #12
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The 275/70-17 was the stock size on the Dodge Ram 1500 pickups with factory offroad package in the late 90s and early 00s. As far as I'm aware, that's the only vehicle they ever came on which is why options are few.

Likewise, the JK Wranglers are the only vehicles I'm aware of that use 255/75-17. Chrysler likes to invent their own tire sizes for some reason, rather than using what's already available. But, there are more options for 255/75 because more JKs have been sold.

A great option would be a Treadwright brand tire in the 265/70-17 size. This will be just a tad wider than the factory size, but a full 1" taller due to their manufacturing process. So they will fit a stock JK perfectly with no rubbing, even with factory wheels and no spacers. And they will measure 32" from the ground up, which is what a "new" 285/70-17 tire will measure.
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Unread 09-04-2012, 04:42 PM   #13
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I am available next Wednesday. I will be away for the weekend and beginning of next week. Key me know if you still want them.
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Unread 09-06-2012, 11:58 AM   #14
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Quote:
Originally Posted by billy mo View Post
life was much easier when all you had to say was 33x12.5x15.
this!
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Unread 09-06-2012, 12:04 PM   #15
paul84043
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265's still look small on stock suspension. 285's looked about right, depending on the day and the angle.
After going to 35's, even the 285's look tiny.
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