Journal of the XP-Humm-E

The building of an electric cycle-car by David Hazen

This 7-minute video will provide a summary of the process:

There's good reason some people call this "the boat-car." David Hazen is also
the author of The Stripper's Guide to Canoe-building, in print 1972-2010

There are many detailed pages on this site that illustrate the step-by-step building process. You can skip around using the navigation side-bar, or if you want to see the FAQ,  download this PDF

To begin the long story: Why Electric?

  This page updated on May 18, 2015