OK on tirerack.com I'm looking at getting tires for 18x7 and 18x9's it shows Front: 225/45-18 and Rear: 245/40-18 but when I called the guy said for the back get Bridgestone Potenza 275/40/18's is that right?
Thanks,
-Gilbert

 

that size will fit on a 9" wheel just fine.

What is the real question? Will it fit? Will it be accurate with the spedo? What are you asking specifically?

What is the purpose for the staggered setup?

 

All show no go. Its a AT 8. So I should be ok with 275/40/18 ok cool.
Hey whats with the spedo?

 

well if you change the overall diameter of your tires your speedo wont be accurate anymore and you will need to get it recalibrated. or you could just get correctly sized tires?

and i think i read somwhere that a different diameter on the front and rear wheels will make the computer go nuts.

 

Also I was told by the rep that he can sell me after market tpms in stalled wheels and tires mounted and balanced

or

I can just have the ones in my stock wheels swaped out.

My question here is I have 16in wheels, will the tpm work in the 18in wheel and tires?

 

dont know why it wouldnt. its just a pressure monitor that is stuck to the inside of the wheels right?

only think i could think of is if it is preformed to the diameter and not flexible? I would think if the guy at tire rack said they could be swapped out you probably shouldnt have much of a problem. I, however, have seen a few threads where people said their tpm's got damaged when they had new tires mounted.

How much extra do they want for the TPM's/mount/balance?

 

Tpm's are like $12 I think and mount w/balance is free.

 

275 on an 18x9 will be too much meat. here is what i would do:

18x7 225/40
18x9 255/35

 

and i believe the correct aspect ratio to keep the speedo the same on a 275 rear is 35

275/35/18

i know reddevil runs that setup on all 4 corners on 9.5" wide enkeis.

 

Cool thanks for the info. You guys rock!

 

if you get 275/40/18 you're speedometer will be a lil off. about 2-3%. needa keep the sidewall portional with the tire width and all that.

 

wow i think that same thing was already posted.

 

I have aftermaket wheels and didn't get TPMS installed. You'll have the light (unless you perform Mazda Maniac's DIY) but it doesn't really both me.

 

Thanks again guys. I asked my boy BigO, heres what I got:

 

i dont know about edge racing but there is nothing wrong with tire rack. they just dont ALWAYS have the absolute lowest price. But they do offer you the mounting and balancing of your wheels/tires and if it is free that is a GREAT deal and worth 80-100$ that you will have to spend to get them mounted and balanced. Factor that in to total cost if you are buying one of the components elsewhere. They are also a very reputable company that I havent heard much negative about their custom services. and finally, they offer a road hazard warranty which can be a pretty big deal to some people.

 

Oh dont get me wrong. But discounttire.com offers free mount and balancing with all wheel and tire bundles and edgracing along with a warranty for a small price.
I'm going after price and how fast they can ship to me before SS9. So I'm going with edgracing.

 

I didnt check out edge so i didnt know they sold nor you were buying your entire package there. Yea if they give you the same services cheaper and can get it to you faster I would go there myself. I will have to keep them in mind next time I am in the market.

 

Edge has a pretty good reputation on this board. A lot of members seem to have purchased from them and been happy with the results.

 

now i know...