Very stout tire as far as mounting manually, took 2 of us to manhandle the tire down on one side to get the last 8 inches in on the other side. Took 25g(5 weights) to static balance. I work at the local dragstrip so thought I would give it a go, some wheel spin on my R1 but even drag tires will spin on most R1s. Best traction at 36 psi on the street. Warms up quickly and I actually met with one of the fastest guys who rides the Dragon one day at the overlook. Had about 200 miles on tire, scrubbed in good after 30 miles or so. We were dragging pegs through the Dragon and not once did this tire spin, slide or kick out on me. No chicken strips here boyzzz. I was very impressed even at speeds over 100mph, it was as smooth as butter but as sticky as your granny's molasses. Got about 800 miles on it so far and no real sign of major wear.