1939 U Model. 74"/1200cc Engine. Very cool bike with original HD parts. Period correct HD Knucklehead Frame extremely clean w/ all loops and castings intact, HD inline Springer, HD handlebars and grips, original horn, pre war floorboards, Knucklehead fenders, 48 tanks, rebuilt engine and tranny, Panhead Speedo, original beehive taillight, original dash, embossed oil tank, M51 Linkert carb, original Cycleray headlight.