I had the chance to order up 20 sets of Dunlops new Q2 street/trackday tire for my shop and run a set at my last trackday. I ran the 190-55-17 and 120-70-17 on my 08 CBR1000RR at my last trackday at Willow Springs. I have been on every tire in the past 4 years from the Pirelli DCs to the Michelin 2Cts to the Stone 003Rs GPAs and NTECs. I can tell you that the new Q2s are everything they are cracked up to be. The tires warmed up quick and stuck great for a street tire. The turn in was predictable and the ability to hold a line was great. I have in the past 4 track days been running the Dunny GPAs with good success and feel the Q2s were very similar in overall feeling. The GPAs have much better grip as they are a full DOT race tire but the Q2 held its own in the traction dept and had a great wear range as well. I have a buddy running the Q2s on the street and cyns on his 08 ZX10R and he loves them.