spankthecrumpet wrote:
Can any bikers give me a relatively safe way of provoking - and then correcting - what roadcraft calls mid-speed wobble so I can get a feeling of what it means?
I'm not entirely sure what they mean by wobble that occurs at around 35mph. I think the world of motorcycle geometry, construction and tyre technology has moved on somewhat since that book was written.
However, all motorcyles (and cycles) have a speed range (actual speed depends on geometry and gryroscopic mass) at which they transition from slow-speed turn the bars in the direction you want to go steering to higher speed gyroscopic countersteering. The transition area could be perceived as wobble I suppose if you hang around in it for long enough, but it's your overcompensating steering input that's causing it and I would guestimate the effect of this to be somewhere around 15-20mph rather than 35.
If this isn't what they are talking about, maybe you need to load a Honda Pan Euro with 400kg of assorted police accessories in order to experience this.
My bike has never wobbled at 35mph and I doubt it ever will.