How Do I Change Tire Sizes on My Car Safely?

Monday, September 19, 2011 by Doc Horvath

Tire and Wheel MeasurementWhile the wheels and tires that are equipped on new cars have been designed to compliment the car and provide an acceptable level of comfort and handling, many of our customers feel that they are not necessarily the best "fit" for their individual taste. In most cases, changing the wheels and/or tires is a great way to personalize your vehicle quickly and safely. However, how do you know which sizes will fit your vehicle? Leave that to us!

When a new model of car or truck is released, we will bring the vehicle in to our facility for evaluation and measurements. When verifying wheel measurements for each application, we measure:

  • Bolt pattern
  • Centerbore
  • Hub interference
  • Load capacity
  • Lug hardware
  • Suspension components
For more information on how we measure critical components of your vehicle, read "How We Know What Fits." Performing these tests guarantees that the tires and wheels we sell you are going to fit your vehicle. These measurements also ensure that there will be no issues with the accuracy of your speedometer/odometer which could also affect the ABS or traction control system the vehicle may have. A tire that is too small (or too tall) can confuse the electronics of the car and cause these systems to malfunction when needed.

Shop by vehicle to find the tires and wheels that are sure to fit your vehicle!

Comments on How Do I Change Tire Sizes on My Car Safely?

Wednesday, November 16, 2011 by robert:
i have a 1/2 ton 4x4 pick up it has 30/950/15 tires on it what size do i need to match them.
Friday, November 18, 2011 by scott wolf:
My 2008 Honda Accord LXP came with P215/60R16 as OEM. Can I safely put P225/60R16 on it as a replacement? Would it impact comfort? I don't really care about fuel efficiency or acceleration. I read a great review on Hankook Optimo 727s and would like to get a set, but no one has the OEM size, but I have found the up size. My primary concerns are comfort, low noise, and wet/snow traction. Got a recommendation for around $110 per tire?
Sunday, November 20, 2011 by sam:
hi, i have a dodge grand caravan 2002 with 215/60/R16 tires in it now, i put winter tires 225/50/R16, is it safe? thank you
Sunday, May 20, 2012 by Holly Spear:
I have a 2008 Jeep Wrangler X Unlimited. What is the largest sized tire I can get without needing a lift? Currently, I'm riding the factory tire: Goodyear Wrangler 255/75R 17. I would like a larger diameter and a bit wider as well.
Wednesday, May 23, 2012 by Doc:
Dear Holly,

Thanks for posting a question on my blog. Unfortunatley the Original Equipment wheels (either 16" or 17") were built specifically for the OE tire sizes, so there are not many alternate sizes we guarantee to fit. For reference, we can guarantee the 235/75R16 for 16" wheels and 255/75R17 for 17" wheels. Hope this helps !
Sunday, August 26, 2012 by RAY:
I HAVE A 2004 CHEVORLET CAVALIER WITH 195/65R15 IN. TIRES. CAN I PUT A 215/60R15 IN. TIRE ON IT
Monday, September 10, 2012 by John Rhinehart:
I have a 2007 Chevy Trailblazer SS that come from the factory with 255 50 r20. What size tire can I run saftley with out any changes or modifications to my truck.
Wednesday, September 12, 2012 by doc:
Ray,

The 215/60R15 tire size is a little taller than we'd recommend, and will cause the speedometer to register s slighly slower speed than you are actually travelling.
Wednesday, September 12, 2012 by doc:
John,
If you keep the 20" wheels, our only other recommended size is 265/45R20. That size is just slightly wider with a slightly shorter sidewall (0.35" to be exact).
Thursday, October 25, 2012 by Michelle:
I have a 2003 Chevy Tracker ZR2 convertible with 215 75 r15. Can I change to 205 75 r 15? I am in Hawaii and cannot find 215 75 tires - all out of stock. thanks
Monday, October 29, 2012 by doc:
Dear Michelle,
The 205/75R15 tire size you mentioned is a little narrower and smaller in diameter than the "stock" size, so it could not be mixed in with your existing tires. If you change all four tires at the same time, consider the truck tire size of 30x9.5R15 as a better option compared to the smaller size.
Monday, November 5, 2012 by Robb:
I drive a 2013 Accent GLS Sedan and it has the 16" OEM rims with 185/55R16 tires for all season. I have a set of 205/65R16 snow tires from my old car and want to be sure they will fit my vehicle. I know they will cause an issue with the speedometer but will they work on my car?
Wednesday, November 7, 2012 by randy springstead:
2002 GMC Envoy, spec tire size is 245/65-17 what are my options to chang size and what will the results be?
Wednesday, November 7, 2012 by doc:
Robb,
The overall diameter of your 185/55R16 tires is 24", and the 205/65R16 is a much taller 26.5". I have two concerns with the taller tire; I would expect a little rubbing if the spring were fully compressed (or bottomed out), and that your ABS or any traction control systems would not function properly when needed. I'd recommend finding another home for the taller tires.
Saturday, November 10, 2012 by Don:
I have a Dodge Durango 2001 4X4. My car has 265/70 R16 on it. I want to change to 245/75 R16 is this possible without causing problems.
Saturday, November 10, 2012 by PAP:
Had dicussion at work yesterday - man said you can go from 17" to 15" wheels and tires if bolt pattern and tire/wheel height matches - Is this so ?
Sunday, November 11, 2012 by curtis:
I have a 2005 Jeep Grand Cherokee limited that currently has 245/65 17. What are my options for sizes. I want a little more aggresive tread and have always had great luck with Goodyear Wranglers. I like the AT/s but it is not offered in this size.
Wednesday, November 14, 2012 by doc:
Don,
The 245/75R16 is the same diameter as your 265/70R16, and just a little narrower. Assuming you wheels are no wider than 8", the narrower tires will fit just fine.
Wednesday, November 14, 2012 by doc:
PAP,
For most vehicle, switch wheel sizes is not a major problem. Other than the factors you mentioned, we have to be careful to check the smaller wheels to make sure they clear the brake calipers on the car before guaranteeing fitment. For best results, reference your vehicle online (www.tirerack.com) or call in for our recommendations
Wednesday, November 14, 2012 by doc:
Curtis,

Assuming your (factory) wheels are 7.5" wide, you can go up to a 275/55R17 tire size, but we do not have anything from Goodyear (or other brands) in an "all terrain" tread pattern. We can also guarantee 255/60R17 and 265/60R17 sizes, but neither have any all terrain options. To get an all terrain tire, you would have to do a tire that is taller or wider than we could guarantee to fit. Sorry I could not help further.
Thursday, November 15, 2012 by Steve:
I have a 2012 Honda Fit base model. Tire size is 175/65R15. The tire options in that size are very limited. Are there other tire sized that I can safely consider without changing the wheels?

THANKS MUCH.
Friday, November 16, 2012 by Doc:
Steve,
Assuming your wheel is at least 5.5" wide, we guarantee the 195/65R15 as a great alternative size. This size is approximately 1/2" wider and 0.3" taller in overall diameter, so there is little effect on instrument accuracy.
Saturday, November 17, 2012 by Gary:
Have Ford Explorer Sport Track with 235/75/R15 tires on now. Can I replace with 215/65/R15? Thanks for your help.
Monday, November 19, 2012 by Don:
I have an 08 Mazda 5 that I would like to get a more comfortable and longer wearing tire for. It came with 205/50-17 tires. I would like to get something with a taller sidewall and overall better ride comfort. What size could I go up to on thios vehicle?

Thank you,
Don
Monday, November 19, 2012 by doc:
Gary,
Your 235/75R15 is approximately 29" in overall diameter, while the 215/65R15 is much too small at 26" overall. The smaller tire's load capacity would not be enough to be used safely on your Ford. Sorry !
Monday, November 19, 2012 by doc:
Don,
The tallest tire we can use on your stock wheel is a 215/50R17, so I'd recommend you look at something in a Touring or Passenger All Season tire (H rated) for best results.
Friday, December 14, 2012 by shannon:
will 215/55R17 fit on my 98 ford explorer?
Saturday, December 15, 2012 by Brian:
Doc,

I have a new Ford Escape with 16" wheels/tires, total diameter of not quite 27". I'd like to put on 20" wheels/tires which would be 29.6" diameter. Will it work out?
Tuesday, December 18, 2012 by doc:
Shannon,
Your Explorer needs to have a tire that is least 29" in overall diameter to carry the weight of the vehicle, and the tire size you referenced is only 26.3" tall so they would not be safe to use. The largest size we can guarantee is 255/70R16 for reference.
Tuesday, December 18, 2012 by doc:
Brian,
The tallest size we can guarantee is a 245/45R20 which is 28.7" in overall diameter. Your tire size might have a small chance of rubbing if the springs were fully compressed..
Wednesday, December 19, 2012 by Donnie:
Doc, I have a 2003 Dodge Durango, I have 265/70R16 on it right now, will a P255/75R17 fit the stock wheel?
Saturday, December 22, 2012 by doc:
The 255/75R17 would be a little narrower but 1.3" taller in diameter which will will cause some inaccuries in the speedometer. Naturally, tire sizes ending in R17 would need a 17" diameter wheel so your stock 16" wheels would have to be replaced as well.
Monday, January 28, 2013 by tyler:
i have a 05 hyundai santa fe that has p225/70r16 on it right now, was considering goodyear duratrac lt245/75r16, i understand the duratrac's would be about 3/4in wider and 2in taller and would change the correctness of the speedo, however i do vary little hwy driving, mostly back road (unplowed 60% of the time), and moderate off road and the stock size has left me spinning and even travling different routes all together. but am i looking way to big?
Monday, January 28, 2013 by doc:
Tyler,
I'm concerned that the bigger tires will cause some issues with your ABS system, and cause additional stress on the driveline of your Hyundai.

I'd have you move up to the slightly larger 235/70R16 and have you consider the Goodyear Wrangler Silent Armor or General Grabber AT2
Tuesday, January 29, 2013 by Marlowe:
I have a 2011 BMW 135i convertible with sport package, built before 9/10. What tire size options do I have if I go to a 17" wheel for winter?
Tuesday, January 29, 2013 by doc:
Marlowe,
Our two best recommendations are either 205/50R17 or 215/45R17 to stay close to the original equipment tire's diameter and load capacity. Once you enter the vehicle information on our website, click the link for Winter Tire & Wheel Package link and then opt for the "build your own package" option to get to the 17"
Sunday, February 10, 2013 by Steve:
My 2001 Honda accord has 205 65r15 tires on it. I put 205 70r15 snow tires on the frount. they look like a taller tire, will this cause a problem?
Sunday, March 10, 2013 by Anne:
I have a 2005 Trailblazier ,tirer size are 235 70 R16,can I replace all 4 tires with 235 75 R16,thanks.
Monday, March 11, 2013 by doc:
Anne,
Your Trailblazer came with the 235/75R16 size as original equipment, so it would be best to get that size back on the truck.
Saturday, March 16, 2013 by greg:
I just bought awesome tires for my 2001 honda odyssey that are 215/65/16. Now I am getting a 2010 honda odyssey that has horrible tires on it, but it uses 235/65/16. Can I safely put the tires from my 2001 on my new 2010?
Sunday, March 24, 2013 by Donna:
I have a Honda Fit Sport. OEM tire size is 195/55R15. I found a good price on 4 all season radial tires that are 195/65R15. Will these fit my car ok? Thank you very much for your advice!
Thursday, March 28, 2013 by doc:
Donna, the 195/65R15 size you referenced is 1.6" (6.8 %)taller in overall diameter compared to your original equipment tire, and would be too tall for us to guarantee fitment.

Our concerns would be that the larger diameter will cause malfunctions with your ABS and/ or traction control systems, and that the tires might and cause damage to both the car and the tires.

I'd recommend passing on the larger size for safety's sake.
Thursday, March 28, 2013 by doc:
Greg,
Unfortunately the newer Odyssey is geared for the larger tire (so ABS and / or traction control would be adversely affected), and the smaller tire from the older Odyssey would not have enough load capacity to be used safely on the new model.

Sorry for the bad news !
Monday, April 1, 2013 by Brandon:
i have 2011 subaru impreza 2.5i im looking to change the tire size i have tires from my old nissan maxima on aftermarket rims will the size 235/45/17 with a 40mm offset, fit on the subaru
Wednesday, April 3, 2013 by Kelly:
My girlfriends 2007 Ford Explorer has P235/65R18 tires which are a expensive tire. Is there an optional size tire we can switch to that would be cheaper?
Wednesday, April 3, 2013 by doc:
Kelly,
The only alternate size we can recommend is the 255/55R18, and while there would be a better variety of options in that (wider) size the prices would be nearly identical to the 235/65R18 size you have currently. Sorry I did not have better news !
Wednesday, April 3, 2013 by doc:
Brandon,
235/45R17 would be wider than we could guarantee to fit without rubbing on the inner fenders. Nissan has a different bolt pattern, so we would not expect the wheels to interchange (even with a bolt pattern adapter). Hope this helps !
Thursday, April 4, 2013 by sonja:
My son's 97 explorer has 235/75/15 can I put any other size on? I found some 215/75/15 that he likes but want to know what size he could safely change to.Thanks
Thursday, April 11, 2013 by doc:
Sonja,
The only alternate size we can recommend is the 225/70R15. The tire size you referenced would be narrower and could cause some handling issues.
Wednesday, April 17, 2013 by James:
My Father has a 97 Dodge Grand Caravan with pretty worn 4 P205/75r15

A friend of ours wants to sell a set of almost new 4 P235/70r15 tires off of her Ford Explorer so she can buy off-road tires. Will the P235 tires fit the Caravan? Thank you.
Tuesday, May 7, 2013 by Rick:
my son has a 2001 chev s10 with 235 55 R16...these are expensive and difficult to find. What options do i have that will fit on the existing rims? thx
Wednesday, May 8, 2013 by doc:
Rick,
The only alternate size we can recommend is 245/50R16, which has a few more options but still not a huge variety. Anything wider that 245 has been know to rub with full lock turning (like in a U turn), so there is not much room to vary the size unfortunately.
Wednesday, June 5, 2013 by shirley:
Can I use 235/70/R17 on a 2002 gmc Denali?
Wednesday, June 5, 2013 by doc:
Shirley,
Assuming you have a GMC Yukon Denali, then the 235/70R17 size you mentioned would be smaller in diameter than the original equipment size (265/70R17) to be used safely. Sorry !
Saturday, June 8, 2013 by Kenyetta:
My 2004 jeep cherokee had 245 R70 16 rims and tires and I put 265 R65 17 rims and tires will this fit because I'm having problems with my tires shaking when driving on uneven pavement?
Thursday, June 13, 2013 by Nick:
I need to replace my 235/75/15 tires on my 1996 V8 AWD Ford Explorer.I would like a wider tire look. What is max possible: 255/70/15 or?
Thursday, June 13, 2013 by doc:
Kenyetta,
The 265/65R17 tire size you mentioned is slightly larger in diameter than recommended, but that larger diameter would not normally cause a vibration by itself. I'd have the balance rechecked and make sure that the wheels are checked to make sure that they are not bent or damaged. Someone from a tire/wheel shop will need to do a test drive with you to determine the issue
Monday, June 17, 2013 by Mike:
I have a 07 suzuki xl7 v6 AWD which currently has 235/65/r16 all season tires on it. I would like to switch to 235/70/r16 mud and snow tires. Could this change seriously compromise how my vehicle runs, my vehicle's performance or safety? Thanks

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