When the original D-series Harley 45s were introduced in 1929, they were nicknamed the “three-cylinder Harleys” because their vertically mounted generators resembled an extra cylinder. Harley-Davidson produced these bikes in response to the success of the popular Indian Scout, but the D-series was not considered a success and it was replaced, in 1932, by the R-series. One of the benefits of the V-twin engine design is its narrow width, keeping the weight of the machine close to the center line.
The stand was fitted until Harley-Davidson adopted rear suspension. The critical change was the new frame, which now featured a curved front downtube and allowed the fitting of a conventional horizontal generator in front of the engine. These 45s were available in four versions: the basic R model, the high-compression RL, the RLD, and sidecar RS. This bike, with its diamond graphics and airflow taillight dates from 1935, though the engine number indicates that it is a 1932 motor. This kind of contradictory evidence is not uncommon when dealing with many years of history. When the R-series was introduced in 1932, the D-series 45 unit was totally reworked, with modifications to the flywheels, crankcases, barrels, pistons, conrods, and oil pump. There were only a few minor internal changes to the engine between 1932 and 1935. The Rs were replaced by the W-series in 1936. While the European market considered a 750cc machine to be a big bike, the R-series were the smallest bikes in Harley’s range in the mid-1930s.
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| Harley Davidson 1935 RL |
The stand was fitted until Harley-Davidson adopted rear suspension. The critical change was the new frame, which now featured a curved front downtube and allowed the fitting of a conventional horizontal generator in front of the engine. These 45s were available in four versions: the basic R model, the high-compression RL, the RLD, and sidecar RS. This bike, with its diamond graphics and airflow taillight dates from 1935, though the engine number indicates that it is a 1932 motor. This kind of contradictory evidence is not uncommon when dealing with many years of history. When the R-series was introduced in 1932, the D-series 45 unit was totally reworked, with modifications to the flywheels, crankcases, barrels, pistons, conrods, and oil pump. There were only a few minor internal changes to the engine between 1932 and 1935. The Rs were replaced by the W-series in 1936. While the European market considered a 750cc machine to be a big bike, the R-series were the smallest bikes in Harley’s range in the mid-1930s.
Harley Davidson 1935 RL SPECIFICATIONS
• ENGINE Side-valve, V-twin
• CAPACITY 45cu. in. (738cc)
• POWER OUTPUT 22bhp (approx.)
• TRANSMISSION Three-speed,hand shift
• FRAME Tubular cradle
• SUSPENSION Leading-link front forks
• WEIGHT 390lb (177kg) (approx.)
• TOP SPEED 65mph (105km/h)
