ALL: That plus wheel size does it for me. 12 inch wheels make me start calling the stuff a scooter. Any wheel small enough to make me want to dodge the odd brick, curb, and nearly every pothole makes me think scooter. Also, engine placement under the seat makes me think scooter. There are a bunch of factors when combined make think scooter. The more factors, the more scooter. If it is so small that riding it standing up is not a good option unless you are a kid, it might be a scooter.