helppppppppp!!! 285/25/20 rear and 245 30 20 - Benzworld.org

gstatus929 · 04-24-2008, 09:09 AM

please respon soon!\

i just got staggered 20" mandrus wheel
i have a 2008 e350 amg

lasttime i used falken 245-35-20 in the front and it rubbed my outer fender so i need a new setup

i know 285/25/20 rear and 245 30 20 front is most comon but for the streets of brooklyn i need to play it safe.

if i go 275/30/20 rear and 245/30/20 front will it look stupid?
25 sidewall is too small for nyc.

somone respond soon im going to buy tires today.

also please include photo if possible/

BenzE500 · 04-24-2008, 01:24 PM

If you go 35 in the front you need to go 30 in the back if you go 30 in the front you need to go 25 in the back so your car sits level. i would do 245/35/20 and 265/30/20 265 is how wide the back of an E63 is u could put 275 if you want. No tire shop will put on the same sidewall height in the front and back. If 245/30/20 is as small as you can go then you have to put 25 inch sidewall in the back and that might not work for you

ruBENZ_00E55 · 04-25-2008, 12:26 AM

First and foremost, is maintaining OEM wheel (tire+rim) diameter. OEM on a 2008 E350 is 245/40/18 front; 265/35/18 rear. Corresponding wheel diameters are 25.71" front; 25.30" rear. Now if your E350 has a sport package (AMG), then I suspect your OEM rear is 275/35/18 (wheel diameter: 25.57").

The correct, and only, tires for a Plus 2 fitment are as follow:

Front - 245/30/20; wheel diameter: 25.78.

Rear - 265/25/20; wheel diameter: 25.21 or 275/25/20; wheel diameter: 25.41. or 285/25/20; wheel diameter: 25.61. Rim width would be the deciding factor: 8.5 - 9 - 9.5.

Here's a link to help you find the correct applications: Tire Size Calculator - tire & wheel plus sizing

And, here are a few points:

(1) You mounted 245/35/20 up front. That placed your wheel diameter one inch over OEM; 26.75 - 25.71 = 1.04". Thus, creating rubbing issues, speedometer issues, and ABS issues.

(2) 245/30/20; 285/25/20 is the most common combination for a reason. It's the optimum fitment.

(3) 245/30/20 front; 275/30/20 rear will not look stupid. It just is not the correct combination. 245/30 front; 275/25/20 rear is.

With all due respect, what you failed to realize (or accept) is that when you plus size the rim, you must minus size the tire (namely the sidewall height). Potholes or not.