I've gone cycling four days now. Once last weekend (40kms), once this past weekend (33kms), yesterday to and from work (42kms), and now today (21kms so far, until I ride home).
My shoulder and neck feel pretty good (knock on wood). There have been a few times that I felt my bicep tingle, as a result of my neck, but pulling my shoulders back seems to alleviate that.
The morning rides to work are still a little on the chilly side at 10c.
I'm finding it a little difficult to motivate myself to ride. In past years, I wouldn't hesitate to go, but now I have to guilt myself into doing it. :) I haven't done any Nike+ workouts in weeks, so this is my one and only major physical activity.