[XenonJohn] wrote in to let us know about updates and a recent test drive of an Electric Self-Balancing One-wheeled Motorcycle, fresh from the beach where he says it proved to be great fun to ride.

RYNO Micro-cycle is an interesting rideable vehicle with a range of up to 30 miles and a top speed of 20 mph. The unicycle is equipped with classic sensors: an accelerometer and a gyroscope, which ...

but this is not true for the trailer required to transport one. To solve this problem, [Make It Extreme] built a custom single-wheel motorbike trailer barely wider than the motorcycle itself.

That thing, in this case, was the RYNO — a $5,300 one-wheeled, self-balancing electric motorcycle. (The term "unicycle" is not welcome here.) The idea for the RYNO was born seven years ago ...