Good article. I've seen this happen right in front of me at Deals Gap. Watched a rider desperately trying to stay in front, wouldn't pull over, started making little mistakes and getting herky jerky correcting them, then smash, he went down. Luckily not hurt bad, but it was a lesson to me in two ways. One, if a faster rider is behind me, and there has been, I always pull over and wave them by. Two, I'll never again ride someones tail who seems to be riding over their limit desperate to keep in front of me, I'll just pull over, wait, and resume my ride.