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Appropriate Tire sizing for 20's on AWD

1863 Views 7 Replies 4 Participants Last post by  AWDRIVER
:veryhappy I would like to get some opinions/experience in putting 20's on an AWD. There are a bunch of choices in tire sizes. I have seen 245 to 275 and 35 to 65 on sidewall. What is maximum and what is optimal? Any thoughts? :veryhappy

Thanks,

DP
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Tire Sizes to fit 20's

Rochester,

There are a number of wheels that will fit the AWD. AWDriver is correct. In my investigation there are a number of companies that make for the AWD. There are a number of threads on that topic.

On the sizing I just returned from a Big O Store who is owned by a friend and we came up with a sizing chart. It may be helpful to others as well.


Tire Comparisons
................................STOCK
width...........................225.........255.........245..........255
Aspect Ratio...................60..........50...........45............45
Rim Size.........................18..........20...........20............20




Sidewall Height..............5.31.........5.02........4.34........4.52
Section Width................8.86.......10.04........9.65.......10.04
Overall Diameter...........28.64......30.04......28.68.......29.04
Circumference..............39.94........94.37......90.10.......91.22
Revs per Mile..............726.51.......692.41....725.24......716.25

Speedometer
at 65............................65..........68.20......65.11........65.93

The overall diameter is the one we need to watch because of clearance with the arm and the nut. In this scenario it looks like the 255/50/20 is going to be to large. The 255/45/20 should still give enough clearance. The 245/45/20 looks to be the closest to current. But make sure you do your checking with the experts as well. There are other sizes that will work but I found this information to be helpful for my understanding.

DP
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