So would a 35 series be ideal compared to a 40? I never understood why you would go from 40 up front to a 35 in the rear unless the tire didn't come in a 40 series.
A 275/35 and 275/40 are the same exact width. The second number in a tire size is called the aspect ratio. You can calculate how tall your sidewall is and how tall the tire is. ex. 275 x .4 (40 series sidewall) =110 mm / 25.4(to get the numbers into inches) 4.33. That means 1 sidewall of the tire is 4.33 inches tall. You have 2 sidewalls and that makes it 8.33 + 18 (rim size) =26.66 inches tall. Your front tire would be 25.7 inches tall. The back tire would sit 1 inch taller and roll slower messing up your speedo.
I have VB3's with the same offsets and although I have NOT ran the Hankooks, I would imagine you would be fine with their fitment, especially not being lowered. With rolled or cut rear fenders you should be Golden! 245/40 & 275/35 are almost the exact same heights. I'm currently running 285/30-18 and they are way to short. Burning them off so I can justify replacing them soon
People go with the 275/35 in back and the 245/40 in front to keep the tires at the same height and basically the same height as how they came stock. If you went with 275/40/18 (which im not sure many people make) in the back, the tire height overall would be more the the 245/40 since its wider. The above post explains that aspect of it very well.
The combo you want to run is perfect 245/40/18 in front and 275/35/18 in back.
2005 gto MBM M6 1 of 566
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.