You may have seen videos of it, or even caught a glimpse of it in real life, but Walter Moss’ popular semi truck-themed trike isn’t just a singular spectacle, it’s a part of a group of semi truck-themed vehicle projects he has worked on over the years.

Altogether, Moss has a motorcycle, trike, “rat rod,” and bus, all with semi truck parts and all “all tuned for max power,” according to Business Insider.

His first build was a motorcycle with a semi truck tire used as the rear wheel, and his projects only got more intricate and impressive from there.

Though Moss is uninterested in selling any of his custom-made machines, the general public is free to gawk if they see him drive by, or to marvel at the many videos taken of the unique vehicles, particularly his trike.