Been watching a few videos on YouTube involving motorbike accidents. One of the things that stood out the most was that speeding is the number one cause, even when the rider was not at fault speed was a factor. So I've put together a short list based on my observations: 1. Speeding 2. Not riding to conditions 3. Riding where other road users can not reasonably expect another vehicle to be 4. Inattention 5. Posing Anything else?