Planet Bike claims their Freddy Fenders are made of "Superflex unbreakable all-weather polycarbonate." I'll say they're unbreakable. I rode through one of the construction-related gaping holes in Main St. on my way to work yesterday morning, and the rear fender clip popped off the frame. The fender started swaying left and right, then grabbed my pants leg. Because my bike is fixed, I couldn't stop pedaling. My left foot quickly pulled the fender back, bending it, and pushed it into the spokes of the rear wheel.

By the time I was able to stop, the fender was nearly doubled back and clicking on each passing spoke. I was able to pull the fender out, and it instantly popped back into its normal shape. I rotated the support hardware along the wheel, and the fender easily clipped back to the frame. All told, it took less than 20 seconds to fix -- but still, I'd like to figure out why it happened in the first place.