Steve46

iTrader: (1)

Hey guys I'm going to be running 245/30-20 in the front and 285/25-20 in the rear for my new rims. I've been here rumors that running 285/25-20 in the rear could throw off my speedometer? Any truth to this? Has anyone ran this setup with before? Thanks in advance!

jedmonds

iTrader: (1)

yes it will throw it off your speedometer by 4.1 percent. If you speedo is at 60 MPH you are actually traveling at 57.5 MPH I know Wezbian is running those size tires on his G37S, so the only issue would be is that your speedo will be off..

Steve46

iTrader: (1)

Hm should I run 285/30 in the rear then to be safe?

VONYC

iTrader: (1)

im running a 245/30/20 front n 285/30/20 rear .. my speedo is fine.. i asked before i did it ... and my car looks raked !!! its bad a$$ ...

dont run a 35 please its soo ugly... -.-

Steve46

iTrader: (1)

Yeah I think 285/30 is fine, but 285/25 throws off the speedo. However, the problem is my car is dropped on H&R and 285/30 might not fit or rub.

VONYC

iTrader: (1)

im dropped on tein s techs and 285 doesnt rub on mine... but its close ... so im not too sure ..

Triple8Sol

iTrader: (59)

After redlude, jeff, and myself confirmed that for you, you still had to make this thread?

Blackjack

iTrader: (3)

I think your best bet is 275/30-20 to be honest. I've had both the 285/30 and now the 275/30 and I'm much happier with the 275.