''Charles Nighbor Originally there was just a Fuso which was a reasonably priced, no frills frame. Then people lamented the passing of the John Howard frame so I brought out the LUX model, (Short for Luxury, or De Luxe.) Then I needed to distinguish the original model so I called it the FR1 (Fuso Racing 1.) because it was the first model. Later I brought out an in between model, the FRX. The X was for the eXtra work that went into the paint finish. Dave Mouton'' From Charles Nighbor Architect Walnut Creek, CA at 75 degrees Wow USA