not width wise rubbing, upper fender well rubbing

As long as hes not lower than 2" he shouldn't have a problem with either tire choice.

17x9 :: +44 :: 5x114.3

Will it fit with 245/45/17's?

Will it fit with 255/40/17's?

yes and yes; pending lowering situation

Thanks! Stock suspension/height. The only height difference that would be incurred would be from the overall diameter of the new wheel/tires.

What kind of clearances would I be looking at (subjective measurements are fine =P)

Stock: 225/45/18

Opt 1: 245/45/17 = 0.3" taller sidewall aka will raise the car a tiny bit

Opt 2: 255/40/17 = same sidewall height as stock but radius of tire is lower, so you will be going slower than what your speedo actually reads

I never thought about that speedo/ride height thing... 18x9.5 265/35. Will that differ from stock by much?

Thanks for your prompt and informative responses Ross.

I'll be going with option 2.

^That has a height of 25.3", Stock is 26.0" So your speedo will be off by 2-3mph.

I have this exact setup right now and 255/40 will fit without rubbing and without a fender roll unless it's some super wide tire I don't know about. 265/35 is getting really close to needing a roll though depending on camber like TopGear8 said.

So I'll be going 2-3 mph slower than what speedo says, correct?
I don't suppose that's adjustable with the AccessPort, lol. :evil_laug

^Correct, When your speedo reads 60mph, you will really be doing around 57. Just take a gps with you and you'll be able to see the difference.

Hi Ross,

Just wanted to double check the math, I got slightly different numbers.

For Opt 1:
Sidewall height = (245 * 0.45)/25.4 = 4.34 inches
Wheel diameter = 17 inches
Total Diameter = (sidewall height * 2) + wheel diameter = (4.34*2) + 17 = 25.68 inches

Stock Setup:
Sidewall height = (225 * 0.45)/25.4 = 3.99 Inches
Wheel Diameter = 18 inches
Total Diameter = (sidewall height * 2) + wheel diameter = (3.99*2) + 18 = 25.97

So wouldn't using the Option 1 decrease the ride height by ~0.3 inches due to Option 1 Total Diameter < Stock Total Diameter?

I just want to clarify because whether or not the ride height is increased or decreased will influence my decision of what tires to get.

EDIT: Pulled these equations from http://www.tirerack.com/tires/tirete...e.jsp?techid=7

So I m pretty sure I m gonna get 5zigen 17x10 +45 wheels. Will it fit the 275/45 Nitto NT01 or falken RT-615 tires? I currently have mazdaspeed shocks and springs so I m lowered 0.8 front are rear. At least I m pretty sure thats the number. lol. They are not adjustable. I m planning on buying megan coilovers over the summer.

EDIT:
also will those tires even work in wet conditions? I plan on using them on teh road.

^With the +45 offset that will fit just fine with no rubbing. But I just found out there is no +45 in the 17x10. Only a +12, +25, and +35. The 18x9.5 is the wheel that comes with the +45.

awesome, now what tires to get wit it? I love the falken RT615 or Nitto Nt01 so they look meaty on those rims. But I plan on mostly using then on teh street and here in IL it rains like almost every day. lol. will those tires even work in da rain?

oh ok, but will the 275/45 fit on 18' wheel?


EDIT:
TopGear, are you using your tires for the road as well? how do they feel in the rain?

^If you got the 18x9.5 +45, then you would get a 275/35 instead of 273/45.

Don't get the Azenis. They are fine on the street and fine in the rain. But they are priced too high now. You can get a set of NT05's for around $750 shipped. And the Azenis usually run about 200+ a tire.

I found Hancooks 265/35 18 for $99 a piece on tirerack.com.

You talking about the RS-2? If so they are on closeout for $109. And that is a very good deal. The RS-2 is a good tire.

Yep, 265/35ZR-18 Hankook Ventus R-S2 XL is what the description was. For some reason they were $99 when I ordered, now it says $109. My total was $460 with shipping, I jumped on it and then realized I better order some rims that fit, lol.

Well you got a great deal. I paid $850 on my 275 azenis last year.

17x9.5 +38 Offset with 255/40/17 - this one seems like it would be close (stock height).

tires are 1/2" smaller than stock, so your speedo will read 3.6% faster then what it's actually at

will they fit w/o rubbing?