225/55-17 Tires ?
05-26-2001, 06:12 AM
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225/55-17 Tires ?
Will these look ok on our Car ? I don't want to go lower profile...and the 55s will acutally raise it up just a Tad, correct ?
Opinions ?
Opinions ?
05-26-2001, 12:13 PM
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You really don't want to mess with the rolling diameter of the tire. You can go up or down in size as long as you stay within a close tolerance of the diameter. Going to a 222/55 will increase the rolling diameter by over 1 1/4". That will throw things way out of wack (speedometer, braking, gas mileage, etc.)
215/50-17 = 25.46
225/55-17 = 26.74
IMHO - don't do it.
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215/50-17 = 25.46
225/55-17 = 26.74
IMHO - don't do it.
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'01 CLS #4055 Red/Parchment-all the goodies
05-26-2001, 09:33 PM
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Thanks ! That's what I wanted to know
<font face="Verdana, Arial" size="2">Originally posted by davo-cls:
You really don't want to mess with the rolling diameter of the tire. You can go up or down in size as long as you stay within a close tolerance of the diameter. Going to a 222/55 will increase the rolling diameter by over 1 1/4". That will throw things way out of wack (speedometer, braking, gas mileage, etc.)
215/50-17 = 25.46
225/55-17 = 26.74
IMHO - don't do it.
</font>
You really don't want to mess with the rolling diameter of the tire. You can go up or down in size as long as you stay within a close tolerance of the diameter. Going to a 222/55 will increase the rolling diameter by over 1 1/4". That will throw things way out of wack (speedometer, braking, gas mileage, etc.)
215/50-17 = 25.46
225/55-17 = 26.74
IMHO - don't do it.
</font>
05-27-2001, 02:56 AM
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What about 225/50-17 ?
<font face="Verdana, Arial" size="2">Originally posted by SpeedyRonin:
ONLY these should go on the Type-S, 17":
215/50-17
225/45-17
235/45-17
Patrick</font>
ONLY these should go on the Type-S, 17":
215/50-17
225/45-17
235/45-17
Patrick</font>
05-27-2001, 01:14 PM
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<font face="Verdana, Arial" size="2">Originally posted by caddy:
What about 225/50-17 ?
</font>
What about 225/50-17 ?
</font>
If you want to go wider, you're going to have to lower the profile. No way around it.
Just because you go to a lower profile tire doesn't always mean the sidewall is going to be smaller (if you keep the same rim size). It's just an aspect ratio to the width of the tire. If you go to a 235/45-17 vs. a 215/50-17, the sidewall will be virtually identical in height.
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05-27-2001, 02:50 PM
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Where's Navagas TN ? I'm just below Chattanooga TN !
<font face="Verdana, Arial" size="2">Originally posted by davo-cls:
If you want to go wider, you're going to have to lower the profile. No way around it.
Just because you go to a lower profile tire doesn't always mean the sidewall is going to be smaller (if you keep the same rim size). It's just an aspect ratio to the width of the tire. If you go to a 235/45-17 vs. a 215/50-17, the sidewall will be virtually identical in height.
</font>
If you want to go wider, you're going to have to lower the profile. No way around it.
Just because you go to a lower profile tire doesn't always mean the sidewall is going to be smaller (if you keep the same rim size). It's just an aspect ratio to the width of the tire. If you go to a 235/45-17 vs. a 215/50-17, the sidewall will be virtually identical in height.
</font>
05-27-2001, 02:50 PM
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Oh Nasheville !! LOL I looked and typed too quickly !
<font face="Verdana, Arial" size="2">Originally posted by caddy:
Where's Navagas TN ? I'm just below Chattanooga TN !
</font>
Where's Navagas TN ? I'm just below Chattanooga TN !
</font>
05-28-2001, 08:01 AM
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What's a good site to get the Actual Tire Size Diameter for measurements / Specs ?
<font face="Verdana, Arial" size="2">Originally posted by davo-cls:
You really don't want to mess with the rolling diameter of the tire. You can go up or down in size as long as you stay within a close tolerance of the diameter. Going to a 222/55 will increase the rolling diameter by over 1 1/4". That will throw things way out of wack (speedometer, braking, gas mileage, etc.)
215/50-17 = 25.46
225/55-17 = 26.74
IMHO - don't do it.
</font>
You really don't want to mess with the rolling diameter of the tire. You can go up or down in size as long as you stay within a close tolerance of the diameter. Going to a 222/55 will increase the rolling diameter by over 1 1/4". That will throw things way out of wack (speedometer, braking, gas mileage, etc.)
215/50-17 = 25.46
225/55-17 = 26.74
IMHO - don't do it.
</font>
05-28-2001, 08:33 AM
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<font face="Verdana, Arial" size="2">Originally posted by caddy:
What's a good site to get the Actual Tire Size Diameter for measurements / Specs ?
</font>
What's a good site to get the Actual Tire Size Diameter for measurements / Specs ?
</font>
http://www.miata.net/garage/tirecalc.html
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05-28-2001, 12:20 PM
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Thanks !
But according to this Calculator, I can't win with either a 225/50-17 ( too slow-less revolutions, a little more diameter) to 225/45-17s Too Fast Less Diameter
215/50-17- 25.464
225/45-17- 24.972 diff of .492 from Stock
225/50-17- 25.858 diff of +.392 from Stock
Either will mess with the Speedo
according to this chart
But according to this Calculator, I can't win with either a 225/50-17 ( too slow-less revolutions, a little more diameter) to 225/45-17s Too Fast Less Diameter
215/50-17- 25.464
225/45-17- 24.972 diff of .492 from Stock
225/50-17- 25.858 diff of +.392 from Stock
Either will mess with the Speedo
according to this chart
<font face="Verdana, Arial" size="2">Originally posted by Al Uminum:
Here's one
http://www.miata.net/garage/tirecalc.html
</font>
Here's one
http://www.miata.net/garage/tirecalc.html
</font>
05-28-2001, 01:50 PM
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Has anyone tried a 235/40/17? I would like to have a smaller diameter, so my gearing will be a little faster.
Spiro
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05-28-2001, 03:16 PM
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Guess I should have Stated 225/50-17 To
That will work
That will work
<font face="Verdana, Arial" size="2">Originally posted by davo-cls:
You really don't want to mess with the rolling diameter of the tire. You can go up or down in size as long as you stay within a close tolerance of the diameter. Going to a 222/55 will increase the rolling diameter by over 1 1/4". That will throw things way out of wack (speedometer, braking, gas mileage, etc.)
215/50-17 = 25.46
225/55-17 = 26.74
IMHO - don't do it.
</font>
You really don't want to mess with the rolling diameter of the tire. You can go up or down in size as long as you stay within a close tolerance of the diameter. Going to a 222/55 will increase the rolling diameter by over 1 1/4". That will throw things way out of wack (speedometer, braking, gas mileage, etc.)
215/50-17 = 25.46
225/55-17 = 26.74
IMHO - don't do it.
</font>
05-28-2001, 06:20 PM
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True, but everything up or down from stock is going to throw it a little slower or a little faster ! Take your pick
<font face="Verdana, Arial" size="2">Originally posted by dfv3.2CL-S:
BTW to the original post. You will end throwing off the speedometer reading and affecting your gas mileage.
</font>
BTW to the original post. You will end throwing off the speedometer reading and affecting your gas mileage.
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