Originally Posted by
Commodus
I haven't tried them, but I guess it depends on your frame of reference. I think it's unlikely that their speed or ride quality is really on par with a true performance tire like a Michelin Pro, an Open Corsa, or a Diamante Pro. But, maybe they hit the right compromise for many riders.
As I've suggested, I prefer to simply buy the fastest street oriented tires available and fix the flats when they occur, since I get so few even on my racy tires.
Yeah, I did that too. Except I had tuffy liners and I didn't get any flats. But I did get numerous severe cuts, and I destroyed 2 Diamante Pro and 2 Diamante Pro Light in under 2,000 miles *total*.
The Diamante Pro and Pro Light actually do not have anything on the GP4000S in terms of rolling resistance or agility, by my (not-so?) finely tuned butt-dyno. You gain no performance and lose a ton of flat protection and even more cut resistance. It appears that I go on roads far dirtier and more dangerous (to tires) than you.
The Evo Corsa does ride awesome, but cuts even easier. I've ridden the SC version, but not CX. Far, far better tire than the Diamante without a doubt.