Jumusiq

Need Help -- Tire size and model recommendations for 20" concave rims on 2015 GS 350?

Front: 20X9
Rear: 20X10.5

LexRuger

245/35/20 front 275/30/20 rear Pirelli is my favorite tire brand.

Jumusiq

[QUOTE=LexRuger;8865239]245/35/20 front 275/30/20 rear Pirelli is my favorite tire brand.[/QUOTE

There should be no rub on the front of I go 35 right? Do you know if I leave the car stock without dropping how big the gap will be? Will it be bigger than stock tires gap?

LexRuger

rubbing depends on the offset. unless you use a very aggressive offset, it shouldn't rub.

the 20" tire will be the same height as the stock tire so the gap will be the same.

PirelliRC

for the Pirellis

Jumusiq

The offset I think is 45. Is that considered aggressive?

Thanks for the help by the way.

Dukeaudio

My fnts are 9" et32 (about .5" less offset) on 245/35 and rub slightly but you should be good. Btw, if you are as particular as i am, the 245/35 Fnt tire won't be as stretched as 275/30. It will have a 'squared' (taller profile) look vs the rears slightly 'stretched' look (I'd expect slight variations between brands). Will change fnt set-up this summer.

LexRuger

That's pretty conservative. You could probably even use a 5mm spacer if you want it more flush.

Mount em up and see how they look

ARISTOh

iTrader: (3)

Well I have 20x9 +32 with 245/35/20 Michelin Pilot Siper Sports and 20x10.5 +45 with 285/35/20 same tires, both front and rear seem to have a very slight stretch and no rubbing at all with favorite suspension. I plan on putting RSR Down springs when I get them in the mail and I was able to get perfect alignment at factory height with the wheels. I have the SPC rear camber arms on order as well so when it's dropped hopefully I can keep these expensive tires as long as possible

ARISTOh

iTrader: (3)

Gender gap looks worse in pictures, but here you can see 285/30 on a 10.5 rear wheel fits nicely especially at stock height on a non FSport GS (Luxury package with AVS)

ARISTOh

iTrader: (3)

And a quick view of the front

Jumusiq

Got em installed! Happy as can be!

LexRuger

Looks good. Congrats.

Jumusiq

Thanks so much for the help. I was able to use the info you gave me to confirm what I was getting before they did the installation.

Dukeaudio

If I remember correctly, the RSRs aren't as low as the Tanabes, so you might not rub. Let us know how they work out for you.