I got 3 miles from home this morning and my NDS crank arm fell off. I found the arm and pedal in the dark, but the arm fixing bolt was MIA. I got it back on with the other bolts. It fell off one more time before I got to work. LBS near work didn't have the bolts in stock. It fell off once on the ride home in the middle of a busy intersection. I guess I'll be riding the road bike for the next week or so. I hope it doesn't snow.