LeRun Original Patent
I recently found the original patent for the LeRun skatebike. I wrote about the patent for the Minson skatebike. The Minson patent was filed on Mar 14, 1983. The LeRun patent was filed on June 18, 1981. The LeRun focus is on the front truck including an adjustable angle.
I don’t believe this was ever implemented on a production skatebike.
It is interesting that both the LeRun and Minson patents offer a front bar to make steering easier.