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      09-28-2009, 02:05 AM   #6
RGuard250
Titanium TCP
 
Drives: E92 M3
Join Date: Sep 2009
Location: Honolulu

Posts: 168
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Quote:
Originally Posted by elp_jc View Post
To do it right, you need to get the tire with the same (or as close as possible) circumference as stock, which means 35 aspect ratio or lower (depending on width). If comfort was your priority, you should have chosen 18" wheels . Having said that, you're not going to notice a dramatic difference between 35 and 40 series tires, so don't worry too much about it. Just choose a tire with a relatively soft sidewall, like PS2s.

By the way, if you don't know how to calculate tire circumference, find a calculator online to determine the aspect ratio needed to match stock circumference for the widths you want. Good luck.
So would 255/35/19 in the front and 275/30/19 in the rear be good? Or should I make the rear 275/35/19? Thanks!
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