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 Aug 10, 2006 - 9:06 PM
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 Enthusiast  Joined Feb 6, '03 From huntingdon tennessee Currently Offline Reputation: 1 (100%)  |
i'm in the market for new rims, and i'm debating on a wheel/tire bundle from edgeracing.com - w/ a 18by8 rim it's giving me the selection of 215/40/R18 tires ... arent those tires too skinny for 18 by 8's!? wouldnt i need something like 225/40/R18's .... whats the freakin deal here???
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Aug 11, 2006 - 12:50 AM
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Enthusiast Joined Feb 6, '03 From huntingdon tennessee Currently Offline Reputation: 1 (100%) |
i thougt the first numbers.... i.e 215, or 225 regarded to the width of the tire - the second numbers ie 35, 40, 45 refer to the height of the tire. can sum1 clear me up on this?
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Aug 11, 2006 - 9:32 AM
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 Enthusiast Joined Jun 23, '05 Currently Offline Reputation: 4 (100%) |
QUOTE(celi_gt_racer @ Aug 10, 2006 - 11:50 PM) [snapback]467731[/snapback] i thougt the first numbers.... i.e 215, or 225 regarded to the width of the tire - the second numbers ie 35, 40, 45 refer to the height of the tire. can sum1 clear me up on this? the first number is the section width in millimeters, and the second number is the aspect ratio. so on a 215/35 tire the sidewall height is .35x215=75.25mm, 215/40 is .4x215=86mm, 225/40 is .4x225=90mm, and so the sidewall height (and in effect the overall diameter of the tire) is a function of the section width AND the aspect ratio and of course the wheel diameter. --------------------  I think Bigfoot is blurry, that's the problem. It's not the photographer's fault. Bigfoot is blurry. And that's extra scary to me, because there's a large, out-of-focus monster roaming the countryside. |
Posts in this topic
celi_gt_racer 18 by 8 Aug 10, 2006 - 9:06 PM
CelicaZR Ive got 225/40/18 on mine Aug 10, 2006 - 9:52 PM celi_gt_racer and those are wide enough for you correct? Aug 10, 2006 - 10:12 PM behindthesmile currently riding on 215/35/18 i'm practically ... Aug 11, 2006 - 12:19 AM
CelicaZR They are wide enough for it.
I reckon they are per... Aug 11, 2006 - 11:12 AM
Insanity-74 I`ve run 235/40/18 with no rubbing at all. Aug 12, 2006 - 6:33 PM |
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