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There is a lot of information about owning, maintaining and modifying motorcycles on this website. Calsci is now basically the result of a teamwork, and in that sense, they get a lot of information and help from other riders scattered around the world. From time to time, they also assign "homework" to people with special talents and get some information from them that would otherwise be difficult to get. They try to trust these people throughout the site, at least those who are willing to accept it. Calsci has a general section that contains information about almost all motorcycles. There are also specific information parts of specific motorcycles. For example, there is a general-purpose part of the tire side, and you can learn how to read them, how to make a small portable air compressor, there are parts of the tire ST1300 section.