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06-03-2007, 08:56 AM | #1 |
Drives: Corolla Join Date: May 2007
Location: Ohio
Posts: 325
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Tire diameter list
Since a lot of folks are interested in going with "plus" size tires and wheels, I thought I'd post the overall diameter of some of the more popular sizes, along with the OEM sizes.
OEM 175/65/14 = 22.92" 185/60/15 = 23.7" Plus sizes 195/50/16 = 23.64" 205/45/16 = 23.23" 205/50/16 = 24.03" 205/45/17 = 24.23" 205/40/17 = 23.43" What has me a bit puzzled is the disparity between the two OEM sizes. That's .8" difference in overall diameter, which is quite a bit. You'd think Toyota would've wanted those two numbers a bit closer together. I have narrowed my chioces down to to either 16" or 17" wheels. If I go with 16s, my tire size will probably be 205/45/16. If I go with 17s, my tire size will probably be 205/40/17. I was also considering 195s until I saw what a poor selection of tires are available in that size. The best selection is in the 205 size. I haven't decided between 16s or 17s, and I really don't know what factors are going to help me with this decision. The number of tire chioces are roughly the same in both sizes. I may be leaning toward the 16s as their somewhat taller sidewall may offer a bit smoother ride, but am I really going to be able to tell the difference between a 45 and a 40 series tire in terms of ride comfort? Both have very short and stiff sidewalls. If anyone would like to do their own figuring, here's the formula: tire width * aspect ratio * 2 / 2550 + wheel diameter = overall diameter or 205 * 45 * 2 / 2550 + 16 = 23.23" |
06-03-2007, 09:47 AM | #2 |
Lonesome Cowboy
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am I really going to be able to tell the difference between a 45 and a 40 series tire in terms of ride comfort?
yes
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06-03-2007, 11:02 AM | #3 |
Drives: Corolla Join Date: May 2007
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06-03-2007, 11:12 AM | #4 | |
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Quote:
Or - just use the spreadsheet to compare sizes |
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06-03-2007, 12:29 PM | #5 | |
Drives: Corolla Join Date: May 2007
Location: Ohio
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Quote:
http://oly4x4.com/metrictireconv.htm |
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06-03-2007, 11:25 AM | #6 |
Lurker supreme!
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Or check out the first couple posts of the Official Tire guide... this has been talked about.
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06-03-2007, 12:27 PM | #7 | |
Lonesome Cowboy
Drives: 2007 WHITE HATCHBACK Join Date: Feb 2007
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Quote:
yeah see the official tire guide and you -will- feel a difference from 45 down to 40 I'm very please with a 205/50/15 I also like using this for comparisons ...http://www.miata.net/garage/tirecalc.html
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06-04-2007, 04:03 AM | #8 |
Drives: 2007 VW GTI Join Date: May 2007
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Sail is right. 1 inch = 25.4mm. so the height formula should use 2540. But, 3/100" discrepency is nothing to cry about.
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