Tires and rims.

Asked by May 29, 2017 at 02:00 PM about the 2003 Cadillac DeVille Base

Question type: Car Customization

I currently have a set of 225/35ZR20 9wxl
tires/rims on my '03 deville. Might be interested in
getting  235/45/20. Will they fit ?

7 Answers

26,545

1 size up is ok... your speedo will be of 5 mph or so

Okay. Let's pretend you're talking to someone that doesn't really know that much about rim sizes and the terms. What do you mean by speedo?

251,265

Speedometer will not be accurate. Your MPH or Miles per hour.

That's what I figured. That's weird to me rim size fucks with it. Would it off faster, slower, either or?

1,400

If you have a choice go to 235/35r20 they only change the speedometer 1.1% the ones you suggested change it 8% making your spedometer show 55 when you are going 60 225/35-20 3.1" 13.1" 26.2" 82.3" 770/mi 60MPH 10000mi N/A 235/45-20 4.2" 14.2" 28.3" 89.0" 712/mi 55MPH 9249mi 8.1% 235/35-20 3.2" 13.2" 26.5" 83.2" 762/mi 59MPH 9896mi 1.1% This chart came from www.powerdog.com

1,400

Sorry the numbers in the answer above did not stay in alignment making the information hard to read. Go to www.powerdog.com and enter the sizes plus the 2235/35r20 I suggested, you will see everything you need to know.

74,515

Those tires are not one size up as the side wall is also taller. The new tires will be 2.1" taller and 0.4" wider.

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