John Bird gave an interesting paper on "Taming the Bicycle" at the San  
Diego conference in December.  You might want to contact him.

On Jan 30, 2011, at 4:09 PM, Mark Dawidziak wrote:

> David,
>     Track down "Taming the Bicycle," an 1884 essay that hilariously
> draws upon bicycle lessons Twain attempted with Joe Twichell. Twain
> wasn't happy with it, so the piece didn't see print until it was
> published in "What Is Man? and Other Essays." But I read it out loud  
> to
> my daughter several years ago, and it makes for a wonderful comic  
> monologue.
> On 1/29/2011 8:21 PM, David Foster wrote:
>> Everyone knows that Hank Morgan is rescued by bicycle riding  
>> knights in the=
>>  Connecticut Yankee, but does anyone know whether Clemens himself  
>> ever lear=
>> ned to ride a bicycle? If so, where could I find an account of that? 
>> =20
>> Thanks for any leads,
>> David=