There are several one wheeled conveyances out there. The ones that I like the most look like what you've got above, because they remind me of the comic "BC"
The other one that I used to see in downtown Houston a fair amount is like this.
THis is why I like the one like what you've got in your post
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Steve
'08 Boxster RS60 Spyder #0099/1960
- never named a car before, but this is Charlotte.
'88 targa
SOLD 2004 - gone but not forgotten