Just got a wheel alignment and new rear tires for my 06 g35x

My Rims are stock 7 spoke 17inch

Factory tires = 215 - 55 - 17

These guys put size 225 - 50 - 17 tires on my car

Is this a big deal? Could there be any issues in the long run?

 

235 50 17 wouldve been alot closer but i dont think that will matter much

http://www.miata.net/garage/tirecalc.html

 

No big deal Rimlas, you'll be fine with that size No worries!
Gary

 

wider tires.. you should be fine

 

225 cross section will grip a tiny bit better and a 50 ratio will give you a very slightly more aggressive final drive, so you may actually feel a tiny bet more pep... unless the tires weigh more.

 

So you have 225-50-17 (new ones) on the rear & 215/55/17 on the front?

 

^Oh geez... good catch. He did say "rear tires" also it's an AWD

Yeah, that is a problem.

 

since we have tire questions thread i need help have 18'' coupes with Z springs have 225/35 front rear 245/45 rear has one finger gap bt front want to cover gap more and want aggressive look what you guys recommend

 

Best place to ask that question is here: https://g35driver.com/forums/wheels-...-ask-here.html
Make sure you mention it's a sedan.

 

thankx for he help

 

Ok, now back to the OP problem....

Rimlas, if I understand correctly, you're saying you only had the rear tires replaced, and they went back with a different size from the front... right?

If so, that's not good for the AWD system. On a RWD car, it's not a problem, but an AWD needs the OVERALL DIAMETER of the front and back tires to be very close to the same, which the two sizes you mentioned are somewhat close, they may not be close enough.

I'll wait for an AWD expert to post up how close the front and rear diameter should be, as I don't personally know.

 

i would say go back to the place and say they put wrong tires on your car...

 

Holy chowder, those fronts are WAY too small. Stock front is 225/45-18. You're about 6.75% smaller than that with those 35's. I don't think it's possible to look aggressive with such a small tire. I'd get those changed out ASAP.

The only way to cover gap is to drop the car. You could run grossly oversized tires, but there are too many other problems with that.

 

It's not a big deal since your fronts are worn down a little bit. The 225/50 is about 1.7% smaller than stock, so running those with worn fronts will make them closer in size. You really should have the same size tires front and back, so when you replace the fronts, you'll need to get 225/50's. Your AWD should still stay active, but you're putting unnecessary strain on the transfer case with mismatched tire sizes. You'll also have problems at the dealer if you go in for any transmission work since they'll have a built in excuse to void your warranty.

If you can, take those tires back and get the proper size. The stock 215/55-17 is pretty wimpy, but a 235/50-17 not only looks much better, it also matches the stock diameter of 26.3".

 

yes that's why i asked and pointed it out..Not Good for awd, either get 2 new ones for the front or put the stock size back on the rear...ASAP