I have fitted a set of the above mentioned tyres to a newly built bike. They seemed to be well suited for the type of roads around here( rough and upwards). They were inflated to the correct pressure and ran well on the road. However when going into corners and roundabouts it felt like I was on greasy roads.They seemed to jump and drift offline and in the wet were even worse verging on dangerous. Tried reducing tyre pressure but to no avail-seemed to make them worse. In the end had to replace them with another make as they scared me ****less one day.Has anyone ever used these tyres and had the same problem.