Harley-Davidson XA (Experimental Army) flat-twin shaft drive motorcycle made by Harley-Davidson for the US Army during World War II. Harley-Davidson Motor Company ( formerly HDI is an American manufacturer of Motorcycles based in Milwaukee Wisconsin. World War II, or the Second World War, (often abbreviated WWII) was a global military conflict which involved a majority of the world's nations, including [1][2]
During WWII, the Army produced a specification for a motorcycle much like the BMWs used by German forces, with shaft drive, a boxer engine, and several other features that made the BMW exceptionally reliable and low-maintenance machines. ( BMW) (Bavarian Motor Works is an independent German automobile manufacturer founded in 1916 A flat engine is an Internal combustion engine with pistons that are all relatively horizontal Harley-Davidson produced the XA, which was based closely on the BMW. Though an excellent machine, only about 1000 were produced. The XA was expensive and, by the time production had begun, it was clear that the Jeep was the Army's general purpose vehicle of choice. The less advanced but cheaper WLA was considered sufficient for its limited roles. The WLA is a model of Harley-Davidson Motorcycle that was produced to US Army specifications in the years during and around World War II.