Pittsburgh last weekend. The Heritage Trail moves to the sidewalk for a short spell until you get back to the point. I don't like being on the sidewalk and there's never cars so I hop off the curb and into the street. I hear tinkling and clanking. I look down at the chain and as I slow it stops. Accelerate from the next light to speed and hear it again. As I slow from looking down at my chain it stops again. Finally I get off the bike which I always get off on the left side. My Road Morph pump is attached to the seat stay on that side. I found the hose had popped out when I hopped off the curb and was dangling into the spokes. Luckily it was just bouncing off of the spokes rather than getting tangled up into them.