My Google-foo is weak on this one. I only found one reference to ZCRIDING on E.S. so I am making a post.
https://www.aliexpress.com/store/product/50KM-H-20-28-48v-1000w-brushless-gearless-hub-motor-ebike-conversion-kit-1000w/1294587_32312457102.html?spm=2114.12010612.0.0.43ef2ffcyexC5Y
Found...