1939
Harley-Davidson Model U - Specifications & Review

Article Complete Info
| Articleid | 213570 |
|---|---|
| Category | Custom-cruiser |
| Make | Harley-Davidson |
| Model | Model U |
| Year | 1939 |
Chassis, Suspension, Brakes & Wheels
| Frontbrakes | Expanding brake (drum brake) |
|---|---|
| Frontsuspension | Leading link -coil springs |
| Rearbrakes | Expanding brake (drum brake) |
| Rearsuspension | Rigid- |
| Seat | Spring-mounted seat |
Engine & Transmission
| Displacement | 1209.00 ccm (73.77 cubic inches) |
|---|---|
| Enginedetails | V2, four-stroke |
| Fuelsystem | Carburettor. Linkert |
| Lubricationsystem | Dry sump |
| Transmissiontypefinaldrive | Chain |
Other Specifications
| Modificationscomparedtopreviousmodel | Extended intake manifold to enlarge the distance between carburettor and cylinder heads. |
|---|
About Harley-Davidson
Country of Origin:
United States
Founder:
William S. Harley, Arthur Davidson, Walter Davidson, William A. Davidson
Best Known For:
V-twin cruisers, touring icons, H-D culture; also LiveWire electric spinoff
Company History
Founded in Milwaukee in 1903, Harley-Davidson grew from backyard shed to global symbol. Early board-trackers and military machines proved durability; postwar big twins defined American road culture with a cadence and silhouette that became shorthand for freedom. The company professionalized long-distance comfort—Electra Glide fairings, air shocks, and later sophisticated infotainment—while keeping a mechanical identity built on a 45° V-twin heartbeat. Harley also navigated reinvention: the Evolution engine restored reliability in the 1980s; rubber mounting tamed vibes; and fuel injection, ABS, and ride-by-wire brought modernity. The brand’s culture—H.O.G. rides, dealer events, customization—turns ownership into community. Recent decades saw expansion into liquid-cooled performance (Revolution X) and true adventure/sport segments (Pan America, Sportster S), while LiveWire broke ground in electric motorcycling. Historically, Harley’s significance extends beyond machines: it’s a maker of rituals and myth, exporting an American idea of the open road. The tension between heritage and innovation defines each new model year, but the throughline is tactile connection—torque-rich roll-on, slow idle, and a sense that the bike has a pulse.
