Don' Speed If You Can't Ride [Video]
We are having a really hard time trying to imagine the skill level of the rider crashing in this video; it looks like he simply lost control of the bike as he accelerated harder, and that is a major hazard, especially when sport bikes are involved. And with the crash occurring in a very wide turn, things are even worse in this respect.
At the same time, he may have ridden into some oil or gravel at the side of the road, but considering that there was another rider in front of him, this possibility seems rather unlikely.
Unfortunately, we have seen quite a lot of inexperienced guys riding way beyond their capabilities and crashing, that we stopped looking for excuses. It's really sad to say this, but in some cases, the riders are the only ones responsible for such nasty crashes.