Motorcycle sidecar wheels ?

Does anyone here know about sidecar wheels. Specifically, do they come in the 4x100 flavor? 

or t n ttt for short (tnttt.com)
https://www.tnttt.com/
Bandit wrote:I learned something in my build process of my trailer. All tires are not the same. It is highly recommended that trailer tires are used for trailers and not passenger tires. It seems that trailers do a lot of sliding and scooting when turning. This abuse can actually break down the belts in a radial passenger tire. Most trailer tires are a 6 ply bias ply tire. They scoot and slide with the best of them.
subtearanean wrote:Haven't been able to find a source.