Frank i love it!

But isnt 345 too wide for 12" wheel ? I never thought this was even an option!! I was stack on 335s! Could i use 12,5" if i roll the fender lip - or ist it just overkill here ?

What would be good pair at front ? You know my secret and the need for 10" wheel...;) :woot:

You cannot run this tire with a larger rim then a 12" and fit it under a mini tub no matter what you do to the lip. Tt that size, adding a 1/2 inch of wheel adds a half inch of section width and quickly make the sidewall to large. I just had to re do a pair of 13" rims that would not fit. I had to have them made into 12s.

As for that tire fitting on a 12" rim, Actually Michelin spec is done with a 12" wheel. Here is the Tire Rack page on Michelin PS2s

http://www.tirerack.com/tires/Spec.j...e1=yes&place=0


Up front a 285 / 35 / 18 would work and give you a real nice tire height stagger. Tire stagger is important and many screw this up. I cannot stand it when someone puts 18s on the back that are 26" tall, and 17s on the front that are 26" tall! it looks like the front tire is taller then the rear tires! The front tires need to be as much shorter as the rim, so if the rim is a 19 on the rear and a 18 on the front, the tire needs to be a inch shorter, at least!

The rears on this set up at 27.4" on a 19" rim will leave 4.2" of sidewall on the rears, a 26" tire height on the front on a 18" rim will leave a 4" sidewall. I HATE when the front tires have a taller sidewall then the rears, HATE IT! Did I mention I do not like that look?

Also, with this set up, you will have a consistant sidewall buldge that matches nicely from front to rear with a bit more buldge on the rear tires. The rears on this set up having a section width of 13.6" on a 12" rim and leaves a .8 buldge on either side of the rear rim. The front having a 11.3 section on a 10" rim leaves a .65 sidewall buldge on the fronts, which again is the look were going for.

Check this site it has all this info
http://www.rims-n-tires.com/rt_specs.jsp

Tire options for 19'S?
 

I am planning on some new wheels (hopefully in 08) for my Nova and have thought about the 18/19 combo, are there alot of tire options available for the 19 inch?

a couple people advised me to look into this wisely, I would be looking for a 19X8 maybe 9 inch rim? I have not spent much time looking at tires just yet, just was advised to tread ;) lightly with 19's?

More and more 19s are coming available as more factory cars use them. Just call me when your ready and I can help spec out the sizes with you. You do not have to buy through me to use that service, so do not be affraid to call.

The biggest reason for the whole "They're poser wheels" is because up until recently, there were hardly any manufacturers that did any competitive wheel and tire in anything larger than 18". I dont think anyone thought about it until Porsche and Viper both went that way. Then it all boils down to weight and mass. By bolting on a set of 20's you were bound to be using heavy wheels and a set of average Z rated tires. Now the manufacturers are stepping up so it just isnt so anymore.:unibrow:

The industry rule of thumb is that for every 1/2" change in rim width, the tire's section width will correspondingly change by approximately 2/10".

I think if your running in 1/4 then the thickness of your tire is whats going to matter for traction. If on the road course then 19/20 will probably help in the turns due to less tire flex but if you have a little rubberband around your wheel more then likely you will be sliding all over. SO just make sure you balance wheel size with the right amount of tire.

From 12" down this is true. But from 12" to 13" on a 335 / 345, the tire move nearly the entire inch. However if you go below 12" to 11.5, the section changes about 1/4". Lived this nightmare, so know all about it unfortunatly, LOL!

The tiremakers for one are making more 18" and bigger tire size's for one, plus there have 18's and 19's that weight less than a 17" or small wheel. plus the looks of a bigger wheel are much better.