Only done about 300 miles on the Falkens so far, and only today got the chance to put some heat into them on a 10 mile twisting country road that I know very well, and I was very very pleased with them. I had to lean on them very hard, and still never broke grip once or got even a tyre squeal! I think the compound is quite hard when cold, but once they warm up, I'd race on these any day! Absolute bargain, and while prices are low, I may get a spare set.