BMW E46 Fanatics Forum banner

1 - 3 of 3 Posts

·
Registered
Joined
·
202 Posts
Discussion Starter #1
I have a sedan with oem sport pkg susp. I just got 18's to replace my 17's. Will my ride height change? The 17's have 45 series tire, 18's have 40 series. I wont be putting them on until spring and have been wondering about it.......
 

·
Registered
Joined
·
376 Posts
If you got 225/40-18s to replace 225/45-17s your ride height will increase by 0.1 inches (not a heck of a lot).

Tire size calculator:

http://www.powerdog.com/tiresize.cgi

Spec.... Sidewall.. Radius.. Diameter.. Circumf.. Revolutions.. Difference
225/45-17.. 4.0 in.. 12.5 in.. 25.0 in ..78.5 in ..808 / mile... N/A
225/40-18.. 3.5 in.. 12.5 in.. 25.1 in ..78.8 in ..804 / mile...0.5%
 
1 - 3 of 3 Posts
Top