Allround · 1939
Empire Star
Technical Overview
1939 BSA Empire Star Technical Analysis & Specification Breakdown
At the heart of the 1939 BSA Empire Star allround motorcycle, BSA pairs a 500 cc (30.5 cu in) single cylinder, four-stroke architecture with road-focused gearing.
Within MotoLibrary's BSA archive, this model family spans 4 indexed model years from 1936 to 1939, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Engine
Displacement 500.0 ccm (30.51 cubic inches)
Engine Type Single cylinder, four-stroke
Engine Details Single cylinder, four-stroke
Fuel System Carburettor
Fuel Control Overhead Valves (OHV)
Transmission
Final Drive Chain (final drive)
Other
Color Options Black-Chrome-Green
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Rider Profile
Who Is This Bike For?
🌍
Best For
All-Round & Adventure
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