I got sent a poem, with the comment "Remind you of anyone?"
ESME ON HER BROTHER'S BICYCLE
One foot on, one foot pushing, Esmé starting off beside
Wheels too tall to mount astride,
Swings the off leg forward featly,
Clears the high bar nimbly, neatly,
With a concentrated frown
Bears the upper pedal down
As the lower rises, then
Brings her whole weight round again,
Leaning forward, gripping tight,
With her knuckles showing white,
Down the road goes, fast and small,
Never sitting down at all.
(by Russell Hoban)
I definitely do the frown and the white knuckles, but I'm not sure about "nimbly" or "neatly" – or even "featly"