noob question please help

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Aug 17, 2010 | 07:23 PM

xtremepb0

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noob question please help

so i wanted to buy 18s for my 98 max to replace the stock 16s? and i heard that if i put 18s on it will screw up my gauges because of the different diameters of the tires. is this true?

thanks

Aug 17, 2010 | 10:34 PM

ChrisMan287

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If you get the right size tires the speedometer shouldn't be off. I'm running 225/40's and it's fine.

Aug 18, 2010 | 06:30 AM

NmexMAX

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Use this tool:

http://www.miata.net/garage/tirecalc.html

Aug 18, 2010 | 01:08 PM

xtremepb0

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alright sweet thanks guys!

Aug 21, 2010 | 03:13 AM

QT1 5MT AE

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as long as you use 235/40/18, it will not have any effect what-so-ever. 225 or 245's are only 1% off.

Last edited by QT1 5MT AE; Aug 21, 2010 at 03:15 AM.

Sep 5, 2010 | 10:20 PM

Rods03Max619

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Damn 1st I ever heard rims would mess up your gauges seen plenty of 4th gens with 18's some with 20's and 22's!!

Sep 8, 2010 | 07:01 AM

NmexMAX

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Quote:

Originally Posted by Rods03Max619

Damn 1st I ever heard rims would mess up your gauges seen plenty of 4th gens with 18's some with 20's and 22's!!

The wheels wont, it's the tire you wrap them in that will. I notice my winter tires and summer tires show a difference when passing those radar signs.

It's almost about 4-5MPH.