Y13

1936 BSA Y13 Technical Analysis & Specification Breakdown

Built around BSA's cross - motocross motorcycle platform, the 1936 BSA Y13 features a 748 cc (45.6 cu in) air-cooled twin, four-stroke configuration. In factory specification, peak output is rated at 19.5 HP (14.2 kW) at 4,800 rpm, transferring power to the rear wheel through chain final drive. With a specific output of 26.1 HP per liter, the engine character is prioritizing low-RPM tractability, mechanical longevity and relaxed throttle response over peak redline numbers.

Rider ergonomics and chassis geometry center around a 1,372 mm (54 in) wheelbase engineered for quick, flickable steering geometry. The 17-liter (4.5 US gal) fuel tank supports practical everyday commuting and weekend road stints.

Within MotoLibrary's BSA archive, this model family spans 3 indexed model years from 1936 to 1938, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.