Sport Twin
1920 Harley-Davidson Sport Twin Technical Analysis & Specification Breakdown
Engineered by Harley-Davidson for the sport motorcycle segment, the 1920 Harley-Davidson Sport Twin utilizes a 590 cc (36 cu in) air-cooled twin, four-stroke layout. Internal engine geometry specifies a bore and stroke of 69.9 x 76.2 mm (2.8 x 3.0 inches) with a 3.8:1 compression ratio.
On the scales, the Sport Twin measures 120 kg (265 lbs) dry. Rider ergonomics and chassis geometry center around a 1,448 mm (57 in) wheelbase engineered for balanced agility and highway composure. The 10-liter (2.6 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Harley-Davidson archive, this model family spans 5 indexed model years from 1919 to 1923, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
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