[TRZ06]

Here is my opinion on them on my 718 GT4...

A little background first...

I loved the SC3's on my SS 1LE and I HATED both the OEM options on my GT4, so I put the SC3's on and WOW what a difference. They are for sure an underrated tire that hits way above its weight class and is sticker than its 220 TW rating leads you to believe.

Anyhow, after going thru my first set on my GT4, they became vaporware (and still are) with perpetual backorder status.

Thank God that the AD09's became avail. as they use the same philosophy in their construction. They also use a 3rd ply belt with a high turn-up for increased sidewall stiffness.

I just went thru my first set and just ordered a new set this week.

Please keep in mind my comparison is based on aggressive street use and not track.

So, now on to my comparison of the two...

1.) Both have VERY similar levels of grip. At least on the GT4 platform, the SC'3 have just a tad more ultimate grip, but they are VERY close.

2.) Both handle heat well and have a wide operating window.

3.) The SC3's have slighter better cold grip

4.) I wore both the SC3's and the AD09's way past the wear bars in the rear to almost a slick and BOTH retained 95% of their grip all the way down.

5.) They both have a sharp/direct initial turn-in, thanks to their sidewall stiffness.

In summary, they are almost a carbon copy of each other and any differences are very minor. They both feel/drive very similar as well.

If you are looking for more grip or a different driving feel, then I would skip the AD09's and stick with the SC3's. For more grip, you need to move to the Super 200 options, like A052's, RE71RS, and RT-660's. The AD09's are an "endurance" 200 TW tire.

I hope this helps.