Manx Daytona Racer
1949 Norton Manx Daytona Racer Technical Analysis & Specification Breakdown
Built around Norton's sport motorcycle platform, the 1949 Norton Manx Daytona Racer utilizes a 495 cc (30.2 cu in) air-cooled single cylinder, four-stroke layout. In factory specification, peak output is rated at 45 HP (32.8 kW) at 5,750 rpm. With a specific output of 90.9 HP per liter, the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.
On the scales, the Manx Daytona Racer measures 150 kg (331 lbs) dry, translating to a power-to-weight ratio of 0.3 HP/kg (3.33 kg per horsepower). The 15-liter (4 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 174 km/h (108 mph).
Within MotoLibrary's Norton archive, this model family spans 4 indexed model years from 1949 to 1952, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
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