The one-wheel electric scooter market—yes, there is such a thing—is expected to undergo a compound annual growth rate of 5% between 2019 and 2027, according to research performed by Allied Market Research.

However, it is worth noting that the market was valued at $110.2-million in 2019 and is expected to grow to $146.7-million by ’27, so it is not like there are going to be huge numbers.

Of that 2019 number, $38.7-million was spent in North America, making it the biggest revenue contributor to the one-wheel market.

Although the research firm says growth is being driven by urban transportation needs, it anticipates that off-road use for the devices will be a major growth area, which seems a bit odd given that it also points out that the scooters are somewhat tricky to ride, requiring “well-trained” and “skilled operators,” as there are “high chances of accidents.”

Indeed.–gsv