My 2005 Z has about 17k and needs new tires...I am keeping the car stock
so I have the 225/50/17 fronts and 235/50/17 rears. My question is this, can
I either put 235 x4 or 225 x4? I want to be able to rotate my tires and as it
stands, I can't without giving $8 dollar an hour flunkies a multitude of chances to nick up my rims which are flawless. At least if all 4 are the same size, I can
rotate the rears to the fronts and vice versa with every oil change.

If I want with non direction I could even do the criss cross rotate but are
non directions any good? My suspicion is they aren't...not for a Z anyway.

Any thoughts?

Also, where is a good place to order tires from, any pref on brands?

EDIT:

How does rotating them affect the TPMS?

 

That might be a challenge being that the front and rear wheels are different widths and offsets...

 

nice trick considering you have 4 wheels with different widths and offsets like he^ said

 

That is why I am asking...if it were possible.

If not, could it be possible to "front rims" to the rear?
I do not drive rough or spirited so the gain from a bigger wheel
in the rear is not a gain for my driving style.

 

im pretty sure the hubs have a 10mm bolt or something like that to prevent exactly what your trying to...it can be removed easily...but if its there, its obviously because you shouldnt.

 

Rotating your tires with TPMS kinda' messes up the display. You'd have to keep track of where each sensor winds up ever time you rotate.

 

I would think it's not really possible. You could get aftermarket wheels that are all the same size (that would fix your offset problem) but you would still have to have a lower profile tire in front to keep your traction and abs system's working correctly. You could rotate just the front or just the rear.

I have found it easier to just have the tires dismounted and remounted so where the worn side is on the outside around 18k or 20k miles cause the tires do wear more on the inside that the outside. Doing this i get around 30k to a set of tires.

Somebody correct me if i am wrong but you might be able to do a little suspension adjustments with the help of a few aftermarket parts if your just wanting to get a few more miles out of a set of tires. Im assuming thats what your trying to do. That would of course affect affect your handling.

 

Same size tires all around has been an ongoing discussion for 7 years. Some members are successful - some are not. I assume you have

350Z Wheels
Standard 17":
Alum Alloy
F-17x7.5
23.259lbs
R-17x8
24.140lbs

so the wheels are not the same size.

 

Yes. The rears are wider, but at only 8", they easily fit in the front after you remove the bolt. You may want to get spacers to get the original (or a more aggressive) look back, but it can be done. I do the same with my 18s (18x8 and 18x8.5 with 255 tires) for the same reason. I suggest you do it with 235 or 245 tires - both of which are ok on both a 7.5 and an 8. You'll see the VDC unhappy, but it doesn't go off on my car that much. If having the ability to rotate and keep your wheels pristine, it's likely worth it to you.

That's incorrect. Yes, there is a bolt. Yes, it is easily removed. Yes, you could and should. Many aftermarket wheels require the same thing. It's not a big deal.

 

That could be tricky but with some engraving on the center cap, not
impossible.



Yes, I have the standard allow wheels so your numbers are likely correct
although I do not know where to verify them, a stamp on the rim perhaps?

This may be a newb question but, what bolt would I remove? I assumed
that the 225/50/17 were up front to avoid rubbing the fenderliner. Is this
not correct? My Z does not have VDC, it has traction control so I wouldn't
see a VDC light and with rear wheel drive, a change in the front wheels
shouldn't cause any negative results with any of the vehicle systems.

So, I would need two more stock 17" rear rims with 235/50/17 or should
I go with 45 series and remove some bolt. Just what is this bolt and what is its purpose?


Hey, thanks for all of your help guys.

 

^^ The bolt’s purpose is to prevent inadvertently reversing front and rear wheels. It’s only useful with the stock wheels; if you mount aftermarket wheels, you must remove the bolt).

It’s explained in the sticky above your thread.

--Spike

 

Buy two 17x8 wheels
and two 235/50/17 tires. Now you can rotate all you want.

 

Thanks, I took a look see at the thread you mention and this picture shows a bolt that I am guessing is on the rear? I have removed the front's before and don't recall ever seeing it so it must be on the rear. It looks awfully deep to be hidden by the rim and still have enough rim material to have stength so is the picture deceiving and it really isn't that deep or is the rim thick enough
that the bolt can sink in.

 

What I was saying was that you could use the wheels you currently have, run 235 or 245s on all 4 of them, and rotate them to your heart's content with the caveats I described previously. I do this with my 18x8 / 18x8.5 wheels, and they all have 255s. I use spacers to "push them out" anyway, so the extra width doesn't matter, as I compensate for it when the wider wheels are up front.

 

I am 99% sure I will pick up some rims from another forum member, then, since
I will be dealing with all 4 "rear" wheels, not worry about the bolt as all 4 will have what ever they need to accommodate that bolt. I will also probably stick with either 225 or 235, which ever will not cause any rubbing up front as I won't be using any spacers.

Can the TPMS learn multiple sensors? Say someone wanted 2 sets of rims, a summer and winter set, can the system learn both or would a relearn have to be done each time they were swapped?

 

The 10mm bolt is on the front. You will still need to remove it to put the extra rear wheels on the front. The 8" fronts accommodate the bolt, the rears do not.

 

Hmmm, it has been a while since I took a wheel off to get to the fenderliner
but I'd swear I didn't have such a bolt...I will look to be sure my memory isn't getting faulty!

Do you think a rear rim with 235's mounted up front would cause any rubbing issues without a spacer?

 

I don't think so, but you also have a no money out way of testing it. Like I said, I have put my 18x8.5 "rears" on the front with a 255 tire. I also run a 285 square set-up so I can rotate for different events (different wheels of course).

 

LOL! It took a moment for that to sink in...the no-money out...

What's the best/easiest way to remove that bolt? Dremel??

 

10mm wrench. It'll take 7 seconds per side once you remove the wheel, maybe less.