Rob-J rides his Canyon Spectral AL 29 in the Mega Cavern Bikepark, Louisville – Kentucky. Over 320,000 square feet including over 45 trails, Jump Lines, Pump Tracks, Dual Slalom, BMX, Cross Country and Single Track all in a former limestone cavern 100 feet sub-surface. This indoor bike park is so awesome! Credit: Canyon Bicycles | Pure Cycling