According to one of the bikers on the weekly ride in McAllen, Texas, a truck was carrying large styrofoam boxes that weren't properly tied down. As the group came up behind the truck, one of the boxes flew out and shattered in front of the riders. One of the motorcycles went down in the explosion of styrofoam, and second rider went down after, clipping the first downed bike in the process. Both riders were taken to the hospital and, thankfully, were released the following day with nothing worse than bruising and road rash. One of the bikes, though, was totaled.
Scroll down to watch the carnage unfold.