tire size help

[carlositosway]

wat would be the best size tires for my coupe

245/30/20255/35/20275/30/20
Modified by carlositosway at 6:36 PM 4/23/2008

[DarkKnight22]

245 would be the easiest unless you feel like rolling your fenders with some of those larger ones.

[stsxcrle]

You can plug in your stocks and compare them as well, you want to be as close to stock as possible:

http://www.wickedbodies.net/Ti...r.htm

[carlositosway]

thanks

[rjdmmfl1]

245/35/20 not 245/30/20

[carlositosway]

you no what i dont think i really no what the middle number (35) stands for

[johnny_d]

the 35 means the sidewall is 35% length of the cross section which in this case is 245mm

[rjdmmfl1]

the 35 means the sidewall is 35% length of the cross section which in this case is 245mm

exactly, the middle number gives you the "profile" of your tire, based on the width of the tire. The lower this number, the smaller your sidewalls, thus the smaller the overall diameter of your tire!

With 245/30/20 tires, your sidewalls will be 2.89"With 245/35/20 tires, your sidewalls will be 3.37"

equation is...

24.5 (24.5cm or 245mm) x .30 (30% profile) = 7.35cm sidewall

7.35cm x 1/2.54 = 2.89" sidewall (1 inch is 2.54cm)

Now take the 2.89" and multiply that by 2 = Toal side wall for both sides of the tire = 5.78" total siwall

now add the diameter of the rim (in this case 20" .. this is where the 245/30/20 comes in at) 5.78" + 20" = 25.78" tire diameter

[08altima35]

great post doc. that post should be a sticky so people will quit asking about it.