XLS 1000 Roadster

1979 Harley-Davidson XLS 1000 Roadster Technical Analysis & Specification Breakdown

At the heart of the 1979 Harley-Davidson XLS 1000 Roadster custom - cruiser motorcycle, Harley-Davidson utilizes a 997 cc (60.8 cu in) air-cooled v2, four-stroke layout. In factory specification, peak output is rated at 57 HP (41.6 kW) at 6,000 rpm, transferring power to the rear wheel through a 4-speed gearbox and chain final drive. With a specific output of 57.2 HP per liter, the engine character is prioritizing low-RPM tractability, mechanical longevity and relaxed throttle response over peak redline numbers.

On the scales, the XLS 1000 Roadster measures 245 kg (540 lbs) wet (curb), translating to a power-to-weight ratio of 0.23 HP/kg (4.3 kg per horsepower). The 13.5-liter (3.6 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 170 km/h (106 mph).

Within MotoLibrary's Harley-Davidson archive, this model family spans 7 indexed model years from 1979 to 1985, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.