JT sprockets and chains are made in Japan and are of the HIGHEST quality.
JT has a great process for selecting and mating steels for this application. I won't buy sunstar or some pos made in china where they don't even specify the materials. There are a few as good as JT, top quality. This review isn't very in depth. However, I am an experienced tool maker and love that they specify what materials they use ie. different steel for front sprockets vs back sprockets, chains etc. It shows that they have a (not so)secret recipe and it is comparable, yet subtly different from JT's closest competitors. The packaging, presentation, engraving and machining quality is all indicative of a company I would highly recommend.