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I read the forum periodically and STFF before posting, in this case the various tire and wheel forums, however I can never get a good grasp on tires sizes so I'm hoping one of you experts out there can help.
I currently have these tires.
Falken Ziex Ze 512 255/35R18 - rear
Falken Ziex Ze 512 225/40R18 - front
http://www.falkentire.com/xhtml/tire...egory=1&tire=5
Rear Wheels - 18x9.5 (35et)
Car not lowered.
The fronts tires are pretty much new but my rears are just about shot. It seams the 512 has been replaced by the 912s. (http://www.falkentire.com/xhtml/tire...egory=1&tire=3
While there are still a few retailers offering the 512s I thought it might make more sense to "upgrade" to the newer improved 912s. However, it seems the 912s aren't offered in 255/35R18. The closest size they have according to the chart on the aforementioned web page I believe is 245/4018.
1. Will 245/4018 be OK considering my a) wheel size b) the size of the front tires (I'm not sure if they need to have the same/similar overall diameter)?
If not, what size would match the closest, should I go with another brand?
2. Does it make much of a difference having slightly different tread patterns on the front than back?
I appreciate your help fellas.
- rubbing on fenders/suspension
- change in speedometer reading vs actual speed
- ESP issues
With that said, you want to stay within 2 or 3% of the original overall diameter. Although the widths are different, the overall diameter of the original tire sizes are very close as well.




Just put Sumi HRX3 or whatever...the Bridgestone's that are on there rubbed when new, but these in the same size, don't as they're a little bit smaller.
The Best of Mercedes & AMG
So it looks like edgeracing.com has the 912s in 245/40 for $108 each or 265/35 for $140. I'm inclined to save the $32 per tire and go with the 245/40 18. Any opinions?
Did anyone see this problem before?




Just put some Sumitomo HTR Z III (Max Performance Summer 225/45R17)
tires on the rear. So far so good.
Just put some Sumitomo HTR Z III (Max Performance Summer 225/45R17)
tires on the rear. So far so good.
im in the market for new tires, and based off sportcoupes reviews, i'm really looking at the sumitomos or fuzions. but here's the problem:
with the kumho's ecstas SPT, i'm running 225/40 18's front and 265/35 18's rear. due to that, i've been rubbing constantly and it's pissing me the hell off. so what tire sizes would you guys recommend, for any tire? should i do 255's in the rear instead? i just want the rubbing to go AWAY.
so any suggestions for good looks / less rub let me know! thanks in advance.
if it matters, i'm runing 8.5 and 9.5.
i was looking at falken 452's and i'm still trying to get reviews from mercedes owners about them
someone suggested kumho ecstas asx - which on tirerack garnered pretty good reviews overall.
one more - nitto invo's.
anybody have these tires or have any additional info?
Last edited by benze-ply; Apr 29, 2008 at 07:04 PM.
i was looking at falken 452's and i'm still trying to get reviews from mercedes owners about them
someone suggested kumho ecstas asx - which on tirerack garnered pretty good reviews overall.
one more - nitto invo's.
anybody have these tires or have any additional info?

I have 18". 225/40 in the front and 255/35 in the back.
I guess one thing I could say is that the so called "rim protector" isn't that great. Either that or my rims are a little wide for them to be very effective. I have 8.5" in the front and 9.5" in the back. But well that doesn't matter. They still work and look good.
Last edited by donmega23; May 2, 2008 at 06:59 AM.
I have 18". 225/40 in the front and 255/35 in the back.
I guess one thing I could say is that the so called "rim protector" isn't that great. Either that or my rims are a little wide for them to be very effective. I have 8.5" in the front and 9.5" in the back. But well that doesn't matter. They still work and look good.
what are people's take on pirelli p-zero nero's (not all season M/S and not rosso), just plain nero? Most reviews i've seen are on M/S - even mixed into reviews on the 'plain' nero's. i've read tramlining?
if you've got 18's - tirerack's got a clearance thing going on.







