I attempted to change the tire of the city cycle and the adjustment of the shift cable but when I removed the rear tire I got caught strangely and broke the rear derailleur and purchased this item for replacement, I changed the shift cable to a new one and adjusted it and I felt it was comfortable to shift. I felt the difference with the derailleur attached at the factory shipment. It looks a little fearless impression better than the thing which was attached to the finished car. Although I improved the bicycle for the first time in about 20 years, I had a bit of a hard time, but it was nice to have completed the work without any problems. It also saved my wages because I was in trouble because there was no bicycle store in the neighborhood of my house and that I repaired myself. It seems that we do not stock the parts of the city cycle at department stores and home centers, and looking for it unexpectedly makes it difficult to obtain the derailleur of the positive nail bracket. It was saved.