A65 Star

1967 BSA A65 Star Technical Analysis & Specification Breakdown

Engineered by BSA for the sport motorcycle segment, the 1967 BSA A65 Star relies on a 654 cc (39.9 cu in) air-cooled twin, four-stroke powerplant. In factory specification, peak output is rated at 54 HP (39.4 kW) at 4,500 rpm, transferring power to the rear wheel through chain final drive. With a specific output of 82.6 HP per liter, the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.

Rider ergonomics and chassis geometry center around a 1,400 mm (55.1 in) wheelbase engineered for quick, flickable steering geometry. The 15.14-liter (4 US gal) fuel tank supports practical everyday commuting and weekend road stints.

Within MotoLibrary's BSA archive, this model family spans 8 indexed model years from 1962 to 1969, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.