Is your freewheel or a cassette having a slight wobble? Should you worry about it, and why (most probably) not? 🙂
Please use the BikeGremlin.net forum for any comments or questions.
If you've found any errors or lacking information in the video(s) - please let me know by commenting on the BikeGremlin forum.
You can comment anonymously (by registering with any name/nickname), but I think it is good to publicly document all the video additions (and especially corrections) - even if their author chooses to remain anonymous.