I want to know if anyone else ever suffers from something that bothers me after riding for a prolonged period of time on my sportbike. This being eye fatigue. The riding position on a typical late model sportbike makes the rider have to look upward relative to his head in order to look forward down the road. Holding my eyes up like this and also my eyelids open wide for so long can really tire them out. So much so that I can get to the point where it becomes difficult to keep my eyes open. I've only gotten to that point once when I rode to Calgary, but it can become dangerous.
What I want to know is if anyone else experiences this. I can't think of any way of preventing it other than stopping for a break every so often or just simply holding my head up so that I'm looking straight instead of upwards.