With the warming and rain overnight, the bikeway portion of my ride was a linear wet skating rink in sections. This was a good test of my new Nokian 40mm studded tires at 50 psi. The tires are fine, but the ride was a little sketchy at that pressure, would probably do better at 35-40 psi. I felt bad for the joggers who were trying to move on that surface - quite treacherous.