Rim size and tire type is really a trade-off... - Saab General Bulletin Board - Saabnet.com
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Rim size and tire type is really a trade-off...
Posted by REM in Seattle (more from REM in Seattle) on Sat, 18 Sep 2021 22:21:00
In Reply to: Question, Paul from Palmyra, PA, Sat, 18 Sep 2021 04:37:45
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As an example I have a Volvo XC60. The vehicle was available in various trim levels with rims from 18 to 20 inch diameter.
In the table below you can see that all the tire/ rim combinations have the same diameter but the section (profile) height changes by 1 inch from 18-inch to 20-inch. That 1 inch of section ((profile) height makes a difference in ride quality and steering response, as well as impact resistance and road damage.
RIM___SECTION___SECTION
DIA.__WIDTH_____HEIGHT____DIAMETER
18____9.25______5.55______29.10
19____9.25______5.09______29.18
20____10.04_____4.52______29.04
The type of tire, i.e. touring vs sport tires makes a difference as well. Also, the larger rim/tire combinations are typically weigh more than the smaller rim/tire combinations.
So the choice of rim size and tire type is really a trade-off on many fronts. Ride quality, steering response, impact resistance, wet weather and snow traction/handling, etc.
The roads here in the Pacific Northwest are generally in good condition and I do not venture off road, so the 20-inch rims work well enough for me.
->Posting last edited on Sun, 19 Sep 2021 13:15:25.
Posts in this Thread:
- Whats up with 20 inch tires?, adl6009
, Tue, 14 Sep 2021 22:08:03- Reason, ELaw
, Mon, 20 Sep 2021 06:36:17 - My personal reflection, SWEDECAR
, Sun, 19 Sep 2021 07:19:43
2 - Question, Paul from Palmyra, PA, Sat, 18 Sep 2021 04:45:35
- Question, Paul from Palmyra, PA, Sat, 18 Sep 2021 04:37:45
- I would have avoided them if could, adl6009
, Fri, 17 Sep 2021 04:33:39 - Re: Whats up with 20 inch tires?, cheaptechs, Thu, 16 Sep 2021 12:49:43
- Re: Whats up with 20 inch tires?, EGD
, Wed, 15 Sep 2021 10:13:26 - Re: Whats up with 20 inch tires?, No Snaab, Wed, 15 Sep 2021 04:32:07
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