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my09denali

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The wheels have a little more chrome then I thought from the pics but I still like em. Very smooth to 80mph (i think) no shaking.

I went from the factory 20" 275/55/20 to 285/45/22 how much is the speedo affected and which way? I had the dealer install them and the service guy didn't seem to know if I needed it recal. or if I needed to come back and have the lugs tightened back up??

I still need to fix the right brake light and then I will tint the back windows but for now I'm just asking to get pulled over.....
 

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williajj

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Looks good Mark. Now we don't look like twins anymore with the black wheels and grille that you threw on there :cheers: But... I'm thinking black 22's too now, so I'll have to go in a different direction than yours.

The tire diameter you have now is only .19" more than the stock diameter. It's not enough difference to have to recalibrate the speedo. Where did you end up getting the wheels from?
 
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m332is

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You are pretty much spot on... your speedo will be 0.6% too slow with the 22's so when your speedo reads 60 MPH, you are really doing 60.4 MPH.

New tires in the same same from different manufactures can be off more than that.

Here is link to play with:

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

Vince
 
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