KevinGS

I currently have the 19" fat setup, and will hopefully be going to 20s soon.

I will miss my fat setup, as I have crashed over many-a-pothole, and never had a bent rim.

But it's time for me to move to 20s, and then pray that I learn how to dodge the potholes better.

I definitely want a full tire on whatever 20" rim I get, meaning I don't want the stretch look at all.

The debate I am having is whether I should go with a 275/30/20 (the standard on a 20), or the slightly taller and wider 285/30/20...for a little more meat.

Does anyone have 20" rims with 285/30/20? If so, please post a picture. I'm trying to see how much more sidewall protection this larger tire affords you as compared to 275/30/20.

Also, does anyone know how much taller the 285/30/20 is going to be as compared to my current fat setup? I believe the diameter of my current 19" fat setup is even taller than a 20" with 285/30/20, but I am not certain.

I think Rominl started a thread a long while ago that showed all the specific tire diameters depending on the rim size and the tire size, but I couldn't find it.

Oh yeah, this is for 20X10 in the rear...

oohpapi44

iTrader: (1)

Kev,

Are your fenders rolled? How wide you want the rear rim is going to make a difference.

KevinGS

OOPS! Forgot to share the width: 10" in the rear.

Fenders aren't rolled, but I can if it's necessary. Does fender rolling make a difference going from the 275 to the 285?

V8_Aristo

Tire profile will depend on the different tire manufacturer. You can have a 275 look "more meaty" than a 285 (with a different tire brand) on the same size wheel. I had a set of 285/30/20 Dunlop SP900 on a 20x9.5 wheel that looked skinnier than some other brand 275/30/20 on a 20x10 wheel.

285/30/20(Dunlop) on a 20x9.5


275/30/20(BFG) on a 20x10


275/35/19 = 26.57
285/30/20 = 26.73

Indio

iTrader: (1)

Here is a 285/30/20 with a +47 offset, no issues, however offset can be the difference between rubbing or not, depending on what you have, a 275 may be the better choice.

KevinGS

Thanks Aristo and Indio.

Aristo, thanks a bunch for that diameter calculation. Seems to be VERY close.

I like Indio's 285/30/20 looks nice and meaty, so I'm leaning towards that. Indio, what kind of tires are those?

KevinGS

Aristo, what's the diameter on a 275/30/20 tire?

nate579

iTrader: (4)

Hey Kevin, Tire Rack actually have the measurement for each tire. Sidewall Height, Width. Might help in Comparing to your current setup.

PS. Good Luck with that. Have you decided on a wheel yet?

V8_Aristo

275/30/20 = 26.49

KevinGS

Almost, almost...

KevinGS

Ahhhh, thanks!