Ulster 500

1937 Rudge Ulster 500 Technical Analysis & Specification Breakdown

Built around Rudge's sport motorcycle platform, the 1937 Rudge Ulster 500 relies on a 499 cc (30.5 cu in) air-cooled single cylinder, four-stroke powerplant. In factory specification, peak output is rated at 45 HP (32.8 kW) at 5,300 rpm, transferring power to the rear wheel through chain final drive. With a specific output of 90.2 HP per liter, the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.

Within MotoLibrary's Rudge archive, this model family spans 11 indexed model years from 1929 to 1939, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.