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I have 2 new bikes, and I am encountering a lot of Torx style fasteners that I have no experience with. My KTM, for example, came with a star bit that looks like it is stamped with "4.5" or "45" - and it fits the rear sprocket bolts and other important parts. Neither of those numbers correlates to standard Torx 10, 20, 30, etc..
My V-Strom has little tiny fasteners on its windshield assembly, that are smaller than my standard Torx 10 bit.
Are there different standards for these things? Japanese/European VS SAE? Am I looking at something other than "Torx" here? Star bits?... I am looking to buy a good set of bits or wrenches that fit these fasteners on my new bikes. What should I be looking for?