Changing gearing -- front vs rear

[Jim Stewart]

Architeuthis dux wrote:

> Jim, what was the approximate frequency of your resonance?  And what 
> gear were you in?
> 

Geez. Well, it was sort of a low growl - I'd guess around 20 Hz.

Any gear, or none. Same resonance in neutral, 3rd, 4th, 5th, not sure it was 
obvious in 1st because of the high engine revs.

The speed (accurate, on my bicycle speedo) was 41 +- 1 mph. Nothing at 38, 
nothing at 44. Barely detectable at 39 and 43.

-js

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