Greg:

You're right. I am hoping that not only will we see R compounds coming out for 19's, but we will also see racing tires. Again, I will first go after cooling and if that doesn't get it done, I will try to go to 19's if good tires are available, but if not, I will stay with 18's and bakes that will fit.

 

One thought about 19 inch wheels is that rubber weighs less than metal.

 

Bob:

Agreed. If I had a problem with the stock brakes today, I would definitely stick to 18" wheels. Until I get to the track and have a problem with the stock brakes (that cooling won't fix), I can't say what I will do because I will look at wheels and tires at that time.

 

Query for the guys with 19's. Do true race cars use 19's now, and are the aspect ratios as low as we now see with street 19's? Has anybody timed laps comparing 18's to 19's on the same car? So I guess I'm asking if there is a measurable performance gain, or is it looks? AS

 

AS:

There are almost no 19" R compound and no racing compound tires, therefore every racer car uses 18's or smaller. Quite a few of the manufacturers are looking into R compound street tires but I haven't heard of any racing tire 19" talk.