I current have the 19" nickels w/ 245/45/19
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I current have the 19" nickels w/ 245/45/19
tires. Would changing to a 275/40/19 in the rear work with these rims? I think they are 8.5"..Would changing to this bigger tire help the car grip better from the line if i added more power?
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I agree with what Adrain said. I would say yes to your traction question But it depends on which tire/make/model you go with as well as what the contact patch is. Some tires have a narrower contact patch than the actual width. Hope that made sense.
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I have the same 19" x 8.5" wheels as elvism. I really like the wheels, but I would like to improve on the 245/45 19 tire size. Any safe suggestions?
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Thread Starter
The only reason i picked the 275/40/19 is because this is the only size up in the same tire brand as the stock front tires. will the car feel any different?
#11
I found this chart on-line, it may be helpful...
http://www.tiresandco.ca/equivalency-tables-advice.html
http://www.tiresandco.ca/equivalency-tables-advice.html
Chart is messed up. They jump 10mm from line to line on the change in rim size while the rims are getting 12.7mm per jump wider. Obviously there's no way this can be consistent.
My advise is to look at the manufacturers website for their rim recommendations. Just off the top of my head, I'd say 265 is the widest you can go on an 8.5" rim without bulge, 255 is probably a better fit.
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Thanks for all the good info. I do like the idea of using the Brembo size, 255/40 19. I just wish someone has already done this, has pics, and can advise how it looks and drives.
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The V6 Performance Package wheels are the same size as your wheels (19x8.5), but use the same tires as the Brembo Package wheels (19x9). You'll be fine.
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Great, thanks! Then I'll go with 255/40 19, with a summer performance tire. I find it really strange that Ford would equip GTs (like mine) with a smaller all-season tire, annoying.
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Yeah it's definitely not enough tire for 400+ hp. I'd recommend the Hankook V12, General Exclaim UHP or Continental DW/DWS. I've used the Generals and many guys on here have used the other two, with great results for a daily driver.
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Lesser width all-season tires are a little better in the snow
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Thanks! I live in Las Vegas, so snow/rain is no issue. I've had the Hankook Evo V12 on my Infiniti G35 and Audi A4, and they are great in the dry, and acceptable in the wet, so I will put them on my new GT in the better 255/40 size - as soon as I burn up these OEM all-seasons.
![](http://www.tirerack.com/images/tires/hankook/hk_ventus_v12evo_ci2_l.jpg)