This thread reminded me of the trip I made to Salida, CO last year in Nov. 3 bikes going north on 285 north of Dumas somewhere, cruising about 10 over, probably 78mph. A bike blew past us (4 lane divided) in the left lane, we were in the right (felt like 150mph at least). I never saw him in my mirror nor did anyone else, and none of us could identify the make of bike. It had stock mufflers and didn't make any noise other than a WHOOOSSSHHH.
Pretty un-nerving for an experienced rider to not even see him coming.
I always consider other bikes are pretty big risks, even when I'm riding alone. The same way they are invisible to car drivers makes them invisible to us. Plus the acceleration potential makes their position less predictable even if you do see them at some point. WHOOSHHH indeed at 150!
