I have two sets of wheels for my ZX14. I ll have to take a look the tires came on the bike are Pilots 3's I believe and the other set I bought had tires on them and I think they are Pilot SR's. I have a set of Shinko tires waiting to put on the rims. They are the hook up for the rear and the stealth for the front. I ran the Stealth on the back of my Turbo Busa and it lasted around 800 miles or so ( maybe 1000 miles ) but that wasn't easy miles either. It was STICKY though that is for sure. But the next tire was a softer compound and it stuck even better, but they all still spun on the Turbo bike, even the Reactor slick I tried out ( it would spin at high rpm where the turbo was really boosting , in each gear ).
So I can't say touring I can give you the best info. But I can say for sticky street riding, the Shinko Stealth is hard to beat for price and longevity. The Shinko Tourmaster on my Vmax would last around 5000 miles. So I replaced it two to one compared to the front. I usually replaced the rear twice a year. I would replace the front and rear at the beginning of the season and and then halfway through I would put another rear on. Usually around 10,000 miles a season on a bike.
The ZX I am getting ready to ride to bike week in a few weeks. I will trailer to KY and then riding from there. I have around 4500 miles planned. for this ride. The tires I currently have will make the ride and when I get back I will probably swap out to my other rims and ride those on my next trip which is to Alabama in June, and should be another 3500-4500 mile trip.
When I hammer out those two sets of tires I will go to the Shinko Stealth tires for street use and then the Hook up for the track. I still have my slick and I might even toss that on a wheel and see how it does if I change the gear ratio's.
So I can't be much help with sport touring tires on the ZX14 since I haven't even ridden mine yet, but I can only say what I experienced with the other bikes. And Shinko is cheap and been super reliable for me. From low horsepower ( Vmax ) to higher horsepower ( Turbo Busa ) and in between.
I didn't go with the other tires because of the price difference between them and how often I like to change them.
Todd