Yes. The speedo will read 1.6 percent high with the 205/50 and will read 3.3 percent high with the 195/50.

Yes. With its smaller diameter, it is like using shorter gears. Acceleration will improve slightly within any gear, gas mileage will be slightly poorer, top speed may be less, and shift points will be at slightly slower road speeds.

 

lol even 205s are too small, damn fwd needs wider tires than that!

 

Yea, the price difference is steep, but I'm going to go with the 205s.

 

Azenis: Seems to be a bit of mythology going here.

They're hardly R-compounds and not designed for track use only.

They're summer performance tyres. There are many of us who will use them through the winters, but you will notice that as the temperatures decrease, so does the Azenis gripping ability decrease.

Azenis in the water: Out of the box, you'll probably think they're fine and wonder what the fuss was all about. However, as the tread wears, you will have more trouble with standing water and heavy downpours because the tread wears down quickly, and it's blocky to start with.

These are definitely not all season tyres; however, the performance for the dollar is so good that almost all of us would love to have them on a daily driven ITR.

Provided you recognise that it's a summer performance tyre use it for that, it's the only tyre you'll need on your ITR until you're ready for R-compounds.

205-50-15 Azenis are pretty wide. Closer to other manufacturer's 215 or even 225. The 215-45-16 size is perfect on a stock ITR with 16" wheels.

 

Azeni's suck in the wet stuff and suck even more in the cold weather. I run them on two different cars and love them, when the conditions are right. My neighbors probably hate them as I don't feel guilty doing donuts in front of my house as they are so damn cheap.

I ran the S03's on my ITR in the 195/50 size as they were around 72 per tire. They are a FANTASTIC tire. Great dry traction (I would buy them over the crappy RE010's any day), absolutely the BEST tire I have run in the rain. On cold rainy track days I was able to pass every car out there -- including 911C4's. I once tried swapping to a set of full tread AO32R's instead and could not get enough heat into them.

Oh how I love rainy track days. Rain, the great equalizer for horsepower.

 

Well, I spoke with the local Town Fair Tire, and they're coming down to $567 installed for 205/50s S-03s.

I'm getting them once it warms up and the snow is gone for good.

 

the reading wont be different, the 205 is WIDTH, not sidewall height. the 205 is for 7inch wide, i dunno why someone would want a 195 which is obvously an inch smaller in width = less traction :dunno:

 

Right, but you're forgetting the math.

205mm * 50% = 102.50mm
195mm * 55% = 107.25mm

A 205/50/15 wheel diameter would be 9.5mm smaller, therefore reducing gearing slightly and throwing off the speedometer.

 

Just so you know man, ActiveAero I believe on HT may be holding a GB on 205/50 S03's at a killer price...may want to hold out and find out whats going on there. Just do a search in the ITR forum, you should find it.

 

Yea, then I run into the problems of having them mounted and all that. My final numbers look like:

Tirerack after shipping: $489 + $60 for mounting/rotation = $549 driving away without: Free flat repair, free rotation, free snow changeover

My local Town Fair Tire said as close as they could come to my total price was $567, which I will gladly pay. What's $18 when a tire rotation would cost me more than that?