I too used to like to try to explain the "why". Have researced and read some many explaintions, some that exceed my college level engineering-calculus-based physics classes (or at least my fading memory of them). And I think I have a couple of ways to explain the "why". But I have come to understand that when trying to describe it at all to anyone for any reason, it is important to make a somewhat minor, but very important, distinction. And that is: The counter steering is more to get the bike to lean (fall over actaully), then can turn.
And I too, no longer try to start the discussion with the "why it works", but more the "how to do it", and more the "yes, it does work" and the "this is why you need to use it". Then let the person expereince that, then in later discussions can talk more about the "why it works".
Other comments:
- can turn a bike at speed without countersteering. By leaning, just that the responce is real slow and not precise. The responce to contersteering is real quick and can make fine adjustments.
- many people dont know about countersteering and will deny that they are doing it, but they are. They may say they are pulling the bike over with handlebars, or they may say they are just leaning, or thay may say they are pushing down on footpeg. But what they are also doing without knowin it is also pulling on opposite handlebar, even if just a little. And that little bit has more effect than what they think they are doing.
- at speed do not have to turn bar much at all, an impreciveable amount, just enought to push against the gryoscopic forces.
- at slow speed counter steering does work, but have to do it in a very exagerated fashion to where the bike is actaully falling over, and then steer back to catch it before do actaully fall over. So countersteer to start to fall over, then steer keep from falling over.
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