Please read this:

BIKING IS A VIGOROUS PHYSICAL ACTIVITY THAT REQUIRES GOOD STAMINA, GOOD FITNESS AND CONDITIONING. THE RIDES IN THE VIDEO, TIME AND DIFFICULTY RATINGS ARE SUGGESTIONS ONLY. ALWAYS RIDE AT YOUR OWN PACE. EVERYONE MUST CONSULT THEIR PHYSICIAN BEFORE BEGINNING ANY ACTIVITY, SUCH AS BICYCLING, THAT REQUIRES HOURS OF PHYSICAL EXERCISE. DISCONTINUE ANY TRAIL THAT CAUSES YOU PAIN OR DISCOMFORT AND CONSULT A MEDICAL EXPERT.

THE PRODUCERS OF THIS WEBSITE TAKE NO RESPONSIBILITY FOR THE EQUIPMENT OR INDIVIDUALS WHO RIDE THESE RIDES, AND OR THE CONSEQUENCES THERE OF FOR ROADS, TRAIL CONDITIONS, WEATHER CONDITIONS OR CLOSURES.