1948 Harley-Davidson Motorcycle Brochure
Ran across a copy of Harley's 1948 brochure, and it is a good one. It captures the same return to civilian machines seen in Harley’s late-1940s advertising. These 12 scans cover the new 61- and 74-cubic-inch overhead-valve Big Twins, the 45 Twin, the 74 Side Valve, police equipment, Servi-Cars, sidecars, and the Package Truck. The new Panhead may be the star, but Harley still had plenty of motorcycles that were expected to work for a living. That mix would carry directly into the next decade’s advertising.
Harley's dealer network and the 45 Twin
Harley opens with “The Mighty Harley-Davidson” and the familiar “World's Most Popular Motorcycle” claim. Then it gets practical. The dealer page tells buyers to think about parts, trained mechanics, and the size of the service organization before handing over their money.
The 45 Twin gets sold two ways. First it is an outdoor-sport machine with a 2-3/4-inch bore and 3-13/16-inch stroke. The same page also leans on economy, which mattered just as much as weekend fun to most riders.
On the next page, the 45 goes to work. Harley lists commuting, police patrol, highway and game-law enforcement, commercial service, dispatch work, and light delivery. This was a motorcycle that could earn its keep all week and still get out of town on Sunday.
The new overhead-valve Big Twins
The big news was the new 61- and 74-cubic-inch overhead-valve Big Twin line, later known by riders as the Panhead. The 61 O.H.V. page prints a 3-5/16-inch bore and 3-1/2-inch stroke. The 74 O.H.V. page lists a 3-7/16-inch bore and 3-31/32-inch stroke.
Harley did not try to sell the engine by itself. Both pages spend plenty of ink on the frame, controls, brakes, wheels, tanks, saddle, and finish. The message was that the whole motorcycle had moved forward, not just the top end.
The 74 Side Valve and police equipment
The 74-cubic-inch Side Valve stayed in the lineup beside the new O.H.V. machines. Its page prints a 3-5/16-inch bore and 4-9/32-inch stroke, giving buyers a proven flathead Big Twin while the overhead-valve motorcycles took center stage.
There is not much romance on the Police Model page, and that is exactly what makes it interesting. Harley lists pursuit lamps, a first-aid kit, fire extinguisher, siren, speedometer hand control, radio equipment, and other fittings for the 61 O.H.V., 74 O.H.V., and 74 Side Valve machines. It reads like equipment meant to be used, not admired in a showroom.
Servi-Cars, sidecars, and the Package Truck
Harley gave the commercial and public-service machines two full pages. The G and GA Servi-Cars used the 45-cubic-inch engine, and the GA was aimed at police work such as parking-meter and traffic duty.
The passenger sidecar shares a page with the enclosed Package Truck. One basic motorcycle could haul a family, carry freight, or be fitted out for specialized work. Harley was happy to sell all three ideas.
New for 1948, but still tried and true
The last feature pages mix new machinery with the kind of reassurance Harley buyers expected. “Tried and true” covers the lighter O.H.V. engine, steering-head details, and the 1948 speedometer. The final scan gets down to the smaller changes: crank pin, Big Twin frame, saddle, tail lamp, tow bar, and clutch.
That is what makes the 1948 brochure so good. Harley was introducing a completely new overhead-valve Big Twin while still giving plenty of space to the 45, the Side Valve, Servi-Cars, police motorcycles, sidecars, and delivery machines. The future had arrived, but the old workhorses were still earning their place in the catalog.