TerraTrikes entry-level Rover has been an unmitigated success. It’s sold in huge numbers and has brought a lot of new riders into the recumbent trike segment. It’s also proven to be a very adaptable design that has spawned several rather major modifications. The most major of these is TerraTrike’s $899 tandem attachement. I got a chance to try one of these out with my son recently. We didn’t ride it long enough for a full on review, but I thought I’d share what we learned here.