Re: *225*/45-17 I believe..... - Saab 9-3SS Bulletin Board - Saabnet.com
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Re: *225*/45-17 I believe.....
Posted by Steve C [Email] (more from Steve C) on Wed, 13 Oct 2004 11:47:06
In Reply to: Re: *225*/45-17 I believe....., Jeremy R., Mon, 11 Oct 2004 20:29:14
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I got this info from Ronalusa dot com:
"What should one consider in upgrading to larger sizes?
A primary rule of thumb, when upsizing to larger wheels and tires is to maintain the same rolling diameter - especially the newer vehicles. In maintaining the same rolling diameter, the ODOMETER, SPEEDOMETER, and modern ABS brake systems all function similarly as prior to upsizing, without any modifications. This occurs in that for every size one moves up, "generally" the contact patch of the tire to the ground becomes wider and the "profile height" or the height of the sidewall becomes shorter-often referred to by the term-low-profile tire.
Today's top tire manufacturers, like Pirelli, Bridgestone, Michelin, Dunlop, Continental, Yokohama etc, have developed tire compounds and tire strengths, that allows customers a comfortable and stable ride quality, without sacrificing ride comfort, when upsizing their vehicles. Most customers relate that the ride quality is actually enhanced by upsizing.
An example of plus sizing would be as follows, typical for a mid-sized vehicle:
STOCK OEM tire size: 195/65/15 tire which has a ROLLING DIAMETER-RD=25.04"
Plus zero= 215/60/15 - RD= 25.17" --------Plus one = 225/50/16 - RD= 24.88"
Plus two= 225/45/17 - RD= 24.98" --------Plus three = 225/40/18 - RD= 25.08
"
posted by 65.196.54...
Posts in this Thread:
- 17" Evo Wheels, Steve C, Mon, 11 Oct 2004 06:57:55
- Re: 17" Evo Wheels, Steve, Thu, 14 Oct 2004 10:19:33
- Re: 17" Evo Wheels, Jeremy R., Mon, 11 Oct 2004 07:39:28
- *225*/45-17 I believe....., Mike Lynch , Mon, 11 Oct 2004 16:05:10
- I'm goofy! It's 215, I actually looked this time...nm, Mike Lynch , Tue, 12 Oct 2004 12:51:15
- Yes, Its 215, but 225 works if you don't lower car.., Steven, Tue, 12 Oct 2004 09:25:17
- Re: *225*/45-17 I believe....., Jeremy R., Mon, 11 Oct 2004 20:29:14
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