Well I've ridden every one of our Santa Ana days in 95 average 102 today temps and they work great.I recently enjoyed an 800 mile mountain-twisty, break-in ride with the PR4's. A variety of conditions encountered from misting rain, standing water,
38 degree early morning temps, shiny/polished old pavement, grooved pavement and elevated pace weren't a concern. If they hold up in the heat of a
Southeastern USA summer, then I will declare them to be the best tire of all time. I replaced the OEM Dunlop's after only 3 miles on the odometer,
not so much because of what I read here, but because I have a road trip to New Hampshire in June and I didn't want to blow a day for a tire change
in the middle of the trip. If the PR4's don't get greasy in the heat of Summer, I'll be a happy man. Cold Pressures: 33F / 36R
35 front and rear. Stock tires I had at 30...these heat up so fast and perform cold great too so I left the psi a bit higher to keep the tread longer.So glad to hear this. If I'm lucky, I won't have to buy another set for months. A well-spent $330.
And wet painted linesI think it was the GT. Also had some Pirelli Rosso II and they were also extremely slippery on painted lines. I remember once I was turning on a street corner at maybe 30km/h and when I rode over painted lines both the front and rear slipped! I managed to regain traction, but no more Pirelli for me. All michelins Ive had have been amazing in all conditions including snow!