Is there any reason for running thicker tires in the front then the rear?
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From: Woodbridge NJ
I sometimes see tire setups that have tires that are thicker in the front. I.E. running say 245/35/19 in the front and 275/30/19 rear. Is this for handling purposes? Is it recommended to do that?
It's mainly for looks. 245 is the size in mm. and 35 is the percentage of the 245... so roughly the side wall is 85.75mm for the fronts. So to look even or achieve the same diameter for the front and rear, the rear tires side wall be 82.5mm if you choose a 275/30 rear tire, making it only a 3.25mm difference from the front and rear... on the other hand, some will argue it is to achieve the same total diameter as the factory settings (245/45/18), because changing the total diameter may change the odometer and/or speedometer true reading. I went with 285/35/19 for my rears. I mainly did that to see how wide is can have them back there with out rolling my fenders. Either way you look at it. it's mainly personal preference. Hope this helps!
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Originally Posted by chimmike
only reason you'd EVER run wider in the front than the rear is if you had a FWD car to counter the severe understeer.
Originally Posted by tsukaz
THICKER not wider... reading comprehension is key
Someone once had mentioned on here to run a 35 series in the front and a 30 series in the rear if you have a low front bumper and a lowered car (with adjustable coilovers).
That way you won't have to lower the front as much (as you would with the 30 series tire) to achieve the same look.
Not lowering the front as much will prevent the front bumper from scraping on the ground.
That way you won't have to lower the front as much (as you would with the 30 series tire) to achieve the same look.
Not lowering the front as much will prevent the front bumper from scraping on the ground.
Originally Posted by chimmike
tires don't get 'thicker', they either get wider or taller or both. Correct wording is key.


Originally Posted by tsukaz
it doesn't change the fact that everyone else knew what he was talking about except for you.

oh really?
Originally Posted by davidv
You mean wider not thicker.
nice job checking to make sure you don't sound like an idiot before stating something
Originally Posted by mdracer76
I currently Run a 35 in front and a 30 in rear.. no problems at all.
https://my350z.com/forum/wheels-and-tires/185233-245-35-19-slipping-issues-need-your-help.html
https://my350z.com/forum/2003-2009-nissan-350z/157436-slip-light-keep-fleshing-is-my-vds-broke.html
https://my350z.com/forum/wheels-and-tires/120497-slip-light-comes-on.html
https://my350z.com/forum/wheels-and-tires/61780-are-275-30-19s-the-proper-tire-for-19x9-5s.html
https://my350z.com/forum/wheels-and-tires/58463-slip-light-turns-on.html
https://my350z.com/forum/wheels-and-tires/47936-slipping.html
https://my350z.com/forum/wheels-and-tires/44187-slip-light.html
https://my350z.com/forum/wheels-and-tires/40291-slip-indicator-problem-after-switching-from-17in-to-19in.html
https://my350z.com/forum/maintenance-and-repair/36922-vdc-problems.html
Chris
jesus christ...35 isn't always much thicker than 30!!!!!!!!!...it depends on how wide the tire is...the 245=width of the tire in mm...the 35=35% of 245mm..get it?!
(0.35)(245)=85.75
(0.30)(275)=82.5
Not a noticeable difference...245/30's would be too thin for normal driving, so in order to keep the wheel and tire diameters the same, you need to use a 35 series tire
(0.35)(245)=85.75
(0.30)(275)=82.5
Not a noticeable difference...245/30's would be too thin for normal driving, so in order to keep the wheel and tire diameters the same, you need to use a 35 series tire
Last edited by djnc; Oct 27, 2006 at 09:32 AM.
Originally Posted by chimmike
nice job checking to make sure you don't sound like an idiot before stating something


Thread Starter
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From: Woodbridge NJ
so I guess its not recommended running a setup like that? I currently have 245/35/19 in the front and 275/35/19 in the rear. I suppose I should go with the same setup correct?



