Harley-Davidson RL 45
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The Harley-Davidson RL 45 is a model of the R-series range produced from 1932 to 1936, preceded by the DL range, which was Harley-Davidson's first 45 cubic-inch and first flathead V-twin motorcycle, and succeeded in 1937 by the WL. The R-series... Wikipedia
Bore / stroke: 2.75 in × 3.81 in (70 mm × 97 mm)
Engine: 45.32 cu in (742.7 cc) flathead V-twin
Power: 18.5 hp (13.8 kW)
Successor: W 45
Top speed: 70 mph (110 km/h)
Transmission: 3-speed
Weight: 390 lb (180 kg) (dry)