Hi all, I bought this bike recently, and aside for the problem to follow, its running like a charm. Each time I applied the rear brake, I would feel a small knock. In the beginning, this knock would happen only the first time I would apply the brake on each ride. I guess it felt like the drum brake shoes were pushing back into position or something. This issue progressively got worse. It started happening each time I would apply the brake, and in the final stages, the knock would occur and give so much feed back through the foot pedal that it was able to kick my foot up a bit. The last straw was the other day. I wasn't even applying the brake. I was pulling out of a round about and straightening up when I heard a large crunch/crack (other equally unpleasant) noise. The end result is that the connector bar that comes from the rear brake pedal is separated from the leaver mechanism into the rear hub drum. The metal is somewhat twisted suggesting a rather violent separation. Any ideas what the knock might have been and how I might fix it? I am planning to source some parts to fix the rear brake connector mechanism. It looks simple enough Cheers.