Caterpillars instead of wheels, two half rear wheels instead of a whole one, a wheel made of bath slippers. One thing is for sure, the videos by The Q, which do without a spoken word, not only captivate construction, mechanics and welding freaks. Millions have subscribed to the channel. This explains, at least in part, how someone can invest so much time and energy in completely pointless projects. 

Sometimes the name seems to provide the inspiration. For example, the truly full-suspension bike, whose top tube, down tube and seat tube consist of a single spring. It is of course practically unrideable, as it permanently bends in all directions. But also extremely sprung. Sometimes it seems to be pure pleasure to saw up as much metal as possible, drill through it and weld it together with other metal parts. Sometimes it's just abstruse - like the bike with the slipper wheel. And of course, the four- and three-cornered wheels also demonstrate why round is the best shape for a bike and will remain so forever.

The precision and arsenal of tools with which The Q brings his wild ideas to ride is impressive. According to his Linkedin profile, his name is Sergii Gordieiev, he has a bachelor's degree in technology, mathematics and computer science from the University of Kharkiv in eastern Ukraine, but now lives in Toronto.

If you like 3D printed arts and crafts, you can find gigantic cappuccino cups, wasps, gelati and sushi rolls on the Instagram channel Gordie Art. In contrast to the abstruse vehicles, the decorative objects should actually find buyers.

And if another inventor comes to mind: Gordieiev is not to be confused with the Latvian Aigars Lauzis, who developed the Camper House Boo Bike, which even went into series production. But The Q has also designed a pedalo.