This is the kind of bike I think I’d most like to build. You can tell that this trike was built from an old suspension mountain bike. However, the placement of the suspension between the backrest and the rear wheel seems like it would offer a much more comfortable ride on this trike than on a mountain bike.

Think how useful this would be if it was in a longtail version. Imagine long panniers on the back. Going uphill in bellingham with it would likely suck, however.