This bike had a rare, never-sold-to-the-public short-stroke motor in it. It also had a trick Gardner flat-slide carburetor wherein the slide moved DOWN when you twist the throttle and the tapered needle is fixed; the main jet is attached to the slide. The mixture can be adjusted "on the fly" by a knurled fitting that raises or lowers the needle slightly to richer or lean out the mixture. Clever. In the race, he diced with another guy for the lead and eventually finished second.