On my first ride on the Pro4's was also my first ride on my new Psimets. I kept hearing this strange ticking sound and thought that it mite be the spokes seating them selfs to there first rider, but come to find out it was the tires picking up debris from the road and bouncing it off of the carbon downtube of my frame.

They do seem to grip very well in corners and so far they wear very well, but I only have a few hundred miles on them.