Tire Sizes
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From: Hoover Alabama
Tire Sizes
Just put 18x10.5 wheels and 305x35x18 tires on the back of my 03 vert. Now I think I need a little more beef up front. Any problem with going with a 17x9.5 wheel with a 275x40x17 tire? The tire is a little shorter that stock and about 1.5 inches wider. It will still give me the 1" difference between front and back.Really not interested in buying new wheels so I want to stay with the 17/18 combo. Any help greatly appreciated.
Thanks
Slik
Thanks
Slik
Last edited by Z0SLIK; Aug 29, 2006 at 10:47 AM.
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Originally Posted by BAMA RED 03
Just put 18x10.5 wheels and 305x30x18 tires on the back of my 03 vert. Now I think I need a little more beef up front. Any problem with going with a 17x9.5 wheel with a 275x40x17 tire? The tire is a little shorter that stock and about 1.5 inches wider. It will still give me the 1" difference between front and back.Really not interested in buying new wheels so I want to stay with the 17/18 combo. Also is anyone running a drag radial up front? Any help greatly apprciated.
Thanks
Slik
Thanks
Slik
The OEM tire on a Z06 is 265/40X17 so you are right in the ballpark of the OEM sizes.
By the way, OEM rears on the Z06 are 295/35x18 so you are close there too..
Your suggestions are perfect
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And, like my good buddy Glenn stated above, you are on the money! A 10.5 inch wide rear wheel is ideal with an 305mm width tire. And, with those specific rear tires and wheels in mind, a 275mm width tire is perfect installed upon a 9.5 inch wide front wheel, and, completes the combo. Great set up! Well done!
Le Mans Master
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From: ABQ NM
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Whoa !!
Originally Posted by BAMA RED 03
Just put 18x10.5 wheels and 305x30x18 tires on the back of my 03 vert. Now I think I need a little more beef up front. Any problem with going with a 17x9.5 wheel with a 275x40x17 tire? The tire is a little shorter that stock and about 1.5 inches wider. It will still give me the 1" difference between front and back.Slik
You definitely don't want the front tire's circumference to be bigger than the rear. Now if you go to a 275/35-17 front tire, you will be OK.
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From: Hoover Alabama
Originally Posted by wamara
Slik, where are you coming up with the 1" difference? It seems to me that the circumference of the 305/30-18 is 25.2", and the circumference of a 275/40-17 is 25.7" (which is basically identical to the 245/45-17 OEM size). (BTW, I use this site to calculate sizes: www.miata.net/garage/tirecalc.html)
You definitely don't want the front tire's circumference to be bigger than the rear. Now if you go to a 275/35-17 front tire, you will be OK.
You definitely don't want the front tire's circumference to be bigger than the rear. Now if you go to a 275/35-17 front tire, you will be OK.
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You should be OK with the sizes you mention. Good luck.
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Slik and I have been trading PMs and he clarified that the back tire is a 305/35-18, not a 305/30-18 as he originally stated. I see he has since edited his original post to reflect this. Obviously makes a big difference, and highlights the importance of communicating clearly and accurately. BTW, the 35 profile tire will clearly work with the 275/40-17.
Maybe I'm just a bit cranky this morning, but I'm appalled that no one else seemed to notice this and was telling him that it (the sizes he originally stated) was OK. If these forums are going to be useful and serve a function more than simply asking what color floor mat we like best, this is
Kind of makes me leery asking for any technical advice unless I'm comfortable that the responder has a clue
Maybe I'm just a bit cranky this morning, but I'm appalled that no one else seemed to notice this and was telling him that it (the sizes he originally stated) was OK. If these forums are going to be useful and serve a function more than simply asking what color floor mat we like best, this is
Kind of makes me leery asking for any technical advice unless I'm comfortable that the responder has a clue