You don’t always need a fancy bike to have fun outside. Not when you have something like this. The Solowheel is a gyro-stabilized electric unicycle with a compact design that can go as fast 10 MPH. You can go 10 miles per charge. It weighs only 26 lbs, so it is quite easy to take around.
The Solowheel is battery operated and self-balancing. Optional training wheels are also available. It is not cheap but if you can afford it, you are going to have lots of fun with it.