I ran a pair of these 120/70F, 190/55R on my '17 GSXR1000 at a recent COTA track day in intermediate level. Compared to the stock RS10 tires, these were much stickier and felt nimble and great. I didn't use warmers and they seemed to come up to temperature quickly at the recommended 32psi F, 30psi R cold temp. I took it easy on my out lap, then they were ready for fast riding! The wear seemed pretty even all around the front and rear contact surfaces. Based on the wear after a day at COTA, I'm expecting 3-4 more track days out of them. They also feel very nice on the street, but I don't take them out on rainy days.
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Bike is more comfortable in corners