Sport · 1928
28B
Technical Overview
1928 Harley-Davidson 28B Technical Analysis & Specification Breakdown
At the heart of the 1928 Harley-Davidson 28B sport motorcycle, Harley-Davidson pairs a 345.7 cc (21.1 cu in) engine architecture with road-focused gearing. Internal engine geometry specifies a bore and stroke of 73.0 x 82.0 mm (2.9 x 3.2 inches).
On the scales, the 28B measures 113 kg (249 lbs) dry.
Engine
Displacement 345.70 ccm (21.09 cubic inches)
Engine Details Single cylinder, four-stroke
Bore x Stroke 73.0 x 82.0 mm (2.9 x 3.2 inches)
Fuel Control Sidevalves
Transmission
Final Drive Chain
Wheels & Brakes
Front Tyre 42820
Rear Tyre 42820
Front Brakes Expanding brake (drum brake)
Rear Brakes Expanding brake (drum brake)
Wheels Spoked
Dimensions & Weight
Dry Weight 113.0 kg (249.1 pounds)
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