The other day, I decided that I needed a ride to help clock up the k's so I could book my bike in for it's 12k service. I headed out to Burrinjuck Dam. Mostly highway to and from and the ride there was very pleasant. On the way home, I had just turned back onto the highway and traffic was light and far away. Got into the left hand lane and sat on the limit (110km) minding my own business and checking my mirrors. This shit box van was coming up behind me, nothing wrong there. Checked again, they had moved to the right hand lane to overtake. I adjusted my speed a bit(slowed down), as we were on a hill and I wanted to give this guy time and space to safely get in front of me. The tool then pulls in front of me, less than a car length seperates us and no indicators were to be seen. Why? There were no other cars in sight, the weather was clear and visibility was as close to perfect as you can get. Needless to say, I slowed down even more and not wanting to play a game of who can overtake who, found my speedo showing under 100k. Perhaps it was a challenge, or the driver really dislikes motorcyclists.?? Anyway, the second exit to Yass they pulled off and the rest of the journey was incident free.