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Discussion Starter · #1 ·
I may be able to get some RX8 rims with the stock 225 45 18 tires on them. I have h-techs now. Will these fit? Will I rub? I could always sell the tires and get the prefered size but I just wanted to know.
 

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Discussion Starter · #4 ·
Yeah. If I can get em, I might keep the rx8 tires in the rear since I have more room there and get the correct size for the fronts.
 

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If you have ABS the different diameters of the wheels from front to back will throw a light... 45s will rub though, so you might as well go with 40s all around. Good luck with the RX8 wheels!
 

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i got my mazda 3 feb of 2006 and installed a set of staggered size 18 rims. it looked really cool on a set of 225x45x18's. it was already rubbing on uneven surface at the stock height. i couldnt even take 2 skinny passengers with me to sit on the rear. the look improved but i wasnt satisfied so i had H&R sport springs installed which dropped the car about 1 1/2 inches in front, and 1 1/3 behind. man, i always got a 2nd and 3rd look whenever i'm cruising. but the downside was you could not go full speed without worrying about any potholes or uneven roads ahead of you.

recently, i just got crazy and sold the 18's and switched to 19's. this time, i installed same sized rims front and back hoping to cure the rubbing factor. it was too late when i learned that the offset played an important role to avoid the fender lip kissing the tires. i thought i solved my problem... but obviously i didnt. the car looks meaner and you get people staring at it now because very few japanese cars are mounted on 19 inch rims. still cant run it full speed. i was told that my last recourse is to have the rear fender lip folded or rolled upward. hopefully, that extra half inch out of the way will cure the problem. if anyone has another suggestion, please post it.

just make sure your specs are accurate before you install your 18's so you could avoid the same problem i did. good luck chief!!!
 

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225/45 will throw off the speedo by 3.5% on the slow side......
 

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I am currently running, 18x7.5 22545ZR18 on a mazda 3 HB. I aslo have it droped with a set of Tein Basic coilovers, and i dont have no rubbing with that size of wheels on my ride, except when i am driving down the highway and hit a minor bump in the road where my ride bounces up and down and rubbs alittle at high speeds. Other then that you should beable to run 225 45 R18 without a problem
 

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^^^rubbing on our cars is mostly caused by improper wheel offset + larger tires.... the same thing happens to me with 225/40 +42 offset
 

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I'm running RX8's with 225/40-18's and Tein S-techs, so far the only rubbing is slow speed parking lot stuff. Full lock(steering to one side) on the front will rub, I just back it off a little and it stops.
I just installed the Mazdaspeed camber links and the skittishness is gone, it's much more stable. The down side is that the rear end appears to be higher now. Also, I haven't hit any hard bumps yet with the camber links to see if the rear tires hit the fender lip. Wish me luck
 
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