1941 Harley-Davidson EL Knucklehead 1000cc Solo Motorcycle

Description

Although its production was severely curtailed by the Second World War, the immortal Harley-Davidson Knucklehead has left a lasting legacy and is a firm favourite with collectors today. Introduced in 1936, the model was Harley's first production overhead-valve V-twin (and the first to use hemispherical heads), using cylinder heads adapted from the original ohv 'Peashooters' on existing JDH V-twin crankcases. To demonstrate the potential of the new model, the Knucklehead set a benchmark of 136.183 mph on the sands at Daytona Beach in Florida. Initially launched with a 61ci version of the new motor, the Knucklehead was also Harley's first four-speed motorcycle and was available in three different models, the E, ES (for sidecars) and high compression EL. With more than 40 horsepower on tap, the EL was a seriously powerful motorcycle by the standards of the day and the equal of Harley's main rival, the Indian Chief. A new double-cradle frame housed this masterpiece of engineering, while the teardrop fuel tank, patented oil tank/battery box and integral dash by Bill Harley completed the package. Some initial problems were resolved early in the Knucklehead's model run, including reinforcing the frame, enclosing the rocker assemblies and most important of all, addressing some of the issues around the dry-sump lubrication system. Having been replaced with the 74ci Model F in 1951, the Knucklehead ultimately remained in production until 1947, by which time it had already taken on legendary status. But for collectors it is the early models which remain the high watermark in terms of styling and performance, with survivors often found in Harley collections around the world.