I do not understand it at all...but a kid on a BMX pulled up to me while I was on my 1978 Raleigh Professional. He commented that it looked like a fast bike...and proceeded to keep up with me, and even over take me...for the next mile or two. What I noticed was that if there was any incline upwards, he fell behind...but when it was flat, or downhill, he was right on me, or even a touch ahead. Either that kid was just a hell of a lot better than me (possible) or there is something about BMX bikes that I don't understand. It was a huge blow to my pride....I'll say that.

I should add...I was not riding hard...just doing my normal pace...and he was clearly in competition.