Here's one I've never seen mentioned, Over the Hills by David Lamb.

Lamb is a newspaper writer in D.C. and decides at age 54 to buy a bike and ride from VA to Santa Monica Pier. He's out of shape, a smoker and virtually no riding experience. Becuase writing is his trade it was a very good read and I'll not tell you if he made it or not. His style reminded me a bit of Bill Bryson.

The publisher is G.K.Hall, 1996.

Steve