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← Harley-Davidson
Custom - Cruiser · 1978

XLS 1000 Low Rider

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MotoLibrary Score
54 /100 Balanced
Power
57 HP
Top Speed
180 km/h
Engine
997 ccm

1978 Harley-Davidson XLS 1000 Low Rider Technical Analysis & Specification Breakdown

Engineered by Harley-Davidson for the custom - cruiser motorcycle segment, the 1978 Harley-Davidson XLS 1000 Low Rider 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 Low Rider measures 240 kg (529 lbs) wet (curb), translating to a power-to-weight ratio of 0.24 HP/kg (4.21 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 180 km/h (112 mph).

Specific Output
57.2 HP/L
Power-to-Weight
0.24 HP/kg (4.21 kg/HP)
Engine
Displacement 997.0 ccm (60.84 cubic inches)
Engine Type V2, four-stroke
Engine Details V2, four-stroke
Power 57.0 HP (41.6 kW)) @ 6000 RPM
Compression 9.0:1
Bore x Stroke 81.0 x 96.8 mm (3.2 x 3.8 inches)
Valves/Cylinder 2
Fuel Control Overhead Valves (OHV)
Cooling Air
Transmission
Gearbox 4-speed
Final Drive Chain (final drive)
Performance
Top Speed 180.0 km/h (111.8 mph)
Wheels & Brakes
Front Tyre 3.75-19
Rear Tyre 4.25-18
Front Brakes Dual disc
Rear Brakes Single disc
Dimensions & Weight
Weight incl. 240.0 kg (529.1 pounds)
Fuel Capacity 13.50 litres (3.57 US gallons)
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Transmission
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Rider Profile

Who Is This Bike For?

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Intermediate
Requires some riding experience.
✌️
Best For
Cruising & Touring
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