Doc said my knee was okay for cycling until we figure out more details on whatever is going on....but I'm not sure she meant singletrack :) Either way, did 3 Sisters in Evergreen--- 7 miles, total gain of 1150 feet, and quite a few hike-a-bike sections for me (especially on the 3 Sisters side!) I could tell I haven't been mountain biking that often lately....my fear factor put me in the wimpy category today!