Video: Booby Traps Setup on Frederick Bike Trail Robb SuttonMarch 14, 2013Mountain BikingVideos1 views 0 What is the world coming too? Serrated blades buried in a bike trail?! What if someone got seriously injured by this? I guess there is no cure for crazy. WHAT DO YOU THINK?For the best prices on mountain biking gear and apparel, check out these approved vendors by Bike198.com - JensonUSA.com and Amazon.com.