Tire Size Issues Part 5

same rims

by wendy coy
(Canada)

2008 nissan rouge 225/60/17 . Can I put 215/70/16 on the same rims or do I have to buy more

Comments for same rims

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Different sized tires on same rim
by: TireGuy

NEVER!

Unless you have a suicide wish, you should never even think about putting tires of one size on a larger or smaller rim. Even if, in some cases, it might be possible to install a different sized tire on a particular rim, the installation will not be stable and could be subject to coming off at any time when you are driving.

In case you are not aware the last number in a tire's size, such as 215/70R16 is the diameter of the rim which it is designed to be mounted on, so that tire would not fit on a rim from a 225/60R17 tire.

TG

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185 65 R15 tires for pontiac vibe

I just got a 2009 Pontiac Vibe. I have winter tires for my old Ford Focus that are size 185 65 R15 and want to know if I can just get 15 inch rims for my Vibe with a 5 bolt pattern and use my old tires.

Comments for 185 65 R15 tires for pontiac vibe

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Ford tires for Pontiac Vibe
by: Tire Guy

You didn't state what size tires or rims your Pontiac Vibe has.

I'm not familiar with that vehicle and there may be different variations so I can't give you a definite answer.

What I can tell you is that if your Pontiac Vibe was designed for using rims which are larger than 15 inches, then it is possible that you may not be able to use smaller rims because they might interfere with your brakes.

Also, since I don't know the original sized tires you Vibe uses, I can't compare the 185/65R15s to them. If you use our Tire Size Calculator to compare the two sizes and find that there is no more than 2% difference is the over all tire diameters then, size-wise these tires might work. You also need to make sure that the speed and load rating from these tires is at least as much or greater than what the Vibe requires.

TG

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2007 Town and Coutry tire fitment

by Stuart
(Canada)

2007 town & Country with 215/70R15. Wish to know if 225/75R15 will fit safely

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Town & Country tires
by: TireGuy

It is possible that 225/75 tires will fit on your 215/70 rims but that is about as far as I would go to say that this might be OK.

I would not recommend this size as a substitute because is is more that 5% larger than your 215/70 tires and I seldom like to see anyone use a tire which is more than 2% different from the original.

Check our Tire Size Calculator to find other alternatives which are more suitable. The calculator shows that a 225/70R15 would be just slightly over 2% difference but the margin is so small that it would be acceptable in my view.

Just make sure that your speed and load ratings are the same or higher on any new tire.

TG

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95 Avalon P20570R15 Snow Tires

by Greg
(New Hampshire)

I have a 1995 Toyota Avalon with alloy rims. The stock tires are P205/65R15 and I was wondering if I can mount P205/70R15 studded snow tires that I have using the alloy rims on the front of the car?

Editorial Comment:

Usually there is some tolerance built into the design of each tires size with regards to the rim size which is suitable. The only exception might be is if one of the tires is already using a rim which is mounted on a rim which is at the extreme end of the range which it has been designed to use. This is highly unlikely if you are talking of an OEM tire. A one-step difference in AR --which is "5" is not likely to upset anything.

TG


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Porsche & Big tires.

by florencio
(houston, texas)

I have a 2008 porsche cayene base SUV i just bought 2 months ago. It has wheel 17 on it.I want to upgrade to 20 wheel so I tried to look for an original used wheel. I was able to bought a used wheel size 20 only to find that the 2 wheel was wider. I think it was for a porsche cayene car and not for SUV. I brought the wheel to Discount Tire store to get their advised and and if i can use it. They check the wheel and my ca.They put 275 /40 R20 BRIDGESTONE DUELER H/P SPORT infront and 315 /35 R20 110W XL BRIDGESTONE DUELER H/P SPORT on the rear. Can i use it? It looks good and runs okey now. Please give your advised, im worried it will break my engine, transmission, or suspension. I really not good about car!!Thanks and God Bless You!!!

Comments for Porsche & Big tires.

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great link
by: Anonymous

Thanks a lot. I believed that this site really help a lots. Hope anyone buying a tire or wanting to know about tire and will will see this site. THANLKS AGAIN AND MORE POWER TO YOU!!!

Comparison to OEM tires
by: Tire Guy

If your OEM tires were 235/65R 17 then the 275/40R20 tires are a very close match in terms of overall operating diameter. The difference is only 1.28% (smaller) which shouldn't have any significant effect on your performance or handling.

Regarding your Nissan Rogue: If you wish to use the 235/65R17s on your existing Rogue rims the easiest thing to do is to see what tires your Rogue is (or was) already using. If the tire width of 235 isn't more than 20 mm more or less than what are already on those rims, it is likely that these tires will fit on those rims.

All tires are designed to be used on a certain width of rim but usually they will also work well on rims which are slightly wider or narrower than the ideal width. By slightly, I mean, the next size of rim width, which are usually 1/2 inch increments.

Make sure that you are considering rim widths and NOT rim diameters. You must never try to fit a tire of a different diameter on a rim which does not match the tire diameter (the last number in the tire size).

TG

follow up comment
by: florencio

This is a follow up regarding your comment..."Since you didn't tell us the original size of the tires your SUV cam with I can not tell you if they came close to matching that size but, based on what you've said so far I would not be surprised. If this is the case you should have little to worry about in using these tires".

The original tire on my Cayene 2008 was continental 4x4 contact 235/65/17.

Also i want to know if i can use this tire to my 2008 nisan rogue with rim 17.

Larger wheels on your Porsche
by: Tire Guy

What you have described is a bit confusing but it sounds like you have purchased some used 20 inch wheels to use on your Porsche, and discovered, after the purchase, that 2 of the wheels are wider than the others.

Next you took your SUV with the new wheels to Discount Tire and they installed two different sized tires: 275/40R20 in the front and 315/35R20 in the rear.

Using our Tire Size Calculator, you will see that the over all diameter of the two different tires si almost identical in size. The difference is so small as to be almost unnoticeable.

In this respect Discount Tire did a great job in matching the two tires. Since you didn't tell us the original size of the tires your SUV cam with I can not tell you if they came close to matching that size but, based on what you've said so far I would not be surprised. If this is the case you should have little to worry about in using these tires. The only inconvenience might be when you need to use the spare tire, which might be a completely different size, but if it is only for temporary use that, too, may not be a major concern.

TG

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Kia Sorento tire replacement

by tim
(illinios)

can i replace my 245/70r16 with 215/65r16 on a 2004 kia sorest?

Comments for Kia Sorento tire replacement

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Sorento tire replacment
by: Tire Guy

The tire you have in mind is far too small in my estimation for a successful swap. The difference in total diameter of the mounted 215/65 tire is well over 8% less than the 245/70s you now have. The maximum recommended difference for any swap is about 2%.

You would experience a considerable speedometer error and use more than 8% more fuel than the original tires, so just from this point of view you might find it exceedingly costly if that is of importance to you. Being a much smaller tire means you will also lose ground clearance that may cause you to touch bottom if you are driving on anything except the most smooth surfaces.

TG

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