I rode fixed with MapMyRide+! Distance: 58.3mi, time: 03:37:10, pace: 3:43min/mi, speed: 16.2mi/h.
http://mapmyride.com/workout/913645993
Spring ride no.1: and it was a good one. With the summer wheels fitted and fresh brake blocks, the bike was ready. And, so was I.

There seems to be less gyroscope effect on these wheels. Out of the saddle, the whole bike is easier to thresh side to side while climbing or adding speed.

Only wish I added a few extra miles to make sixty.