New rims, question about tires

[lykbutta]

Good evening all. Went down to the tire shop and decided to pick up some new Blaque Diamond BD-11’S , running staggered, 20x9 and 20x10 rears for my 2015 3.8 sedan.

Question I have is the tires they recommended were 255/35/20 in the front and 275/35/20 in the back. In the search I see people running 30’s in the back. Is that a serious difference. Any advice before they come in?

 

[kb41]

Ideally, you would want both tires the overall same in diameter. According this 1010 the ones they selected for you should work.

http://www.1010tires.com/Tools/Tire-Size-Calculator/255-35R20/275-35R20?ismetric=False

 

[TylerDH]

I would think the tire shop meant 275/30/20. maybe not though. the overall diameter of your rear wheels would be larger than your front if you ran the 35 series in the back.