For those who remember me, I had a long layoff from biking due to a bulge that appears on my right leg when I engage in a strenuous activity for my legs. This coming weekend, we have been invited to a ranch and had the suggestion for me to bike again. The terrain is very appropriate for a mountain bike and to be honest, I feel like biking again. I just hope that the bulge will not emerge. Maybe my biking should be moderate, say 5 or 10 minutes. Any advice or opinion?