I built a new commuter. Actually I just replaced the frame. My old frame was very rusty and all the rust in the frame tubes were making noise over bumps. The seatpost also got seized again and I finally gave up on it and might make a winter commuter out of it. I swapped everything over to the new frame, did a 20 mile ride Monday, commuted Tuesday and today, but on the way home I had an issue. I was stopped at a red light and when I stood on the pedals to take off the chain popped off and I almost went down. Apparently I did not have the rear axle nuts tight enough and the wheel jacked loose. I carry simple tools and was able to fix it and finish the ride...........