
Harley-Davidson took a leap forward in modernizing its motorcycles with the 1925 JD model, particularly in terms of design and aesthetics.
A redesigned frame lowered the seat by three inches, while wider, smaller-diameter tires gave the bike a more robust appearance. The fuel tank adopted a sleek teardrop design. However, color options stayed limited to Olive Drab, unchanged since 1917.
Despite the absence of rear suspension, riders benefited from improved fork springs and a new ergonomic saddle, which also included a six-position height adjustment feature.
The shift lever was repositioned further forward near the tank for easier access, and a fork-mounted tool kit was introduced for the first time.
Sidecars were highly popular during this era, as they often functioned as the main mode of motorized transport for families.
Harley's iconic 74-cubic-inch V-twin engine, first launched in 1922, saw only slight modifications through 1928. Among these changes in the JD model were the replacement of aluminum pistons with iron alloy ones and the addition of 16 Alemite fittings to the engine and gearbox for smoother lubrication.
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1925 Harley-Davidson JD Pictures

Updates for the 1925 Harley-Davidson JD featured a redesigned ergonomic seat and a repositioned shift lever.




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