Classic and Classy Motorcycles Ltd

Historical Context

The 1981 Harley-Davidson FXS Super Glide represents a continuation of the factory custom movement that began in 1971 with the original FX Super Glide. Designed by Willie G. Davidson, the Super Glide was Harley's first attempt to merge the big twin FL touring chassis with the sportier XL Sportster front end, creating a more aggressive and stripped-down cruiser. By 1981, the FXS had evolved into a refined version of this concept, equipped with the 80 cubic inch (1340cc) Shovelhead engine, a 4-speed transmission, and classic custom styling straight from the factory. This model bridged the gap between traditional Harley touring bikes and the emerging cruiser scene of the late '70s and early '80s.

Technical Specifications and Features

• Year: 1981
• Make: Harley-Davidson
• Model: FXS Super Glide
• Engine Displacement: 1340cc (80 cubic inches)
• Engine Type: Air-cooled, 45-degree Shovelhead V-twin
• Compression Ratio: 8.0:1
• Power Output: Approximately 60 horsepower
• Torque: Around 65 lb-ft
• Transmission: 4-speed manual
• Brakes: Disc front and rear
• Fuel System: Carbureted (typically Keihin)
• Fuel Capacity: 3.5 gallons (split tank design)
• Wheelbase: Approx. 61 inches
• Dry Weight: Around 580 pounds
• Key Features: Low-slung profile, mag wheels, drag-style handlebars, kick and electric start (on some), and minimalist styling.

Project Potential

The 1981 FXS Super Glide is a highly desirable project for classic Harley enthusiasts. Restoring one back to factory condition showcases its signature look: narrow front forks, mag wheels, and a stretched low stance. These bikes are also popular platforms for period-correct customs—bobbers, choppers, and club-style builds. The Shovelhead motor, though requiring attentive maintenance, is known for its character and performance potential. With a wealth of aftermarket support, the FXS offers flexibility for both original restorations and custom interpretations.

Riding Experience

When restored, the FXS offers a true old-school Harley-Davidson experience. The Shovelhead engine delivers a strong, torque-heavy ride with a mechanical feel and unmistakable exhaust tone. The 4-speed gearbox is solid and direct, giving the rider a tactile connection to the road. While the ride is raw compared to modern cruisers, that’s part of the appeal—vibration, feedback, and sound all come together to create a deeply engaging experience. The low seat height and drag bars offer a laid-back yet assertive riding position suited for cruising.

Legacy and Collectibility

The FXS Super Glide is a key part of Harley-Davidson’s lineage, representing the company’s move into the factory custom space. It paved the way for models like the Wide Glide and Softail, while retaining the essence of Harley’s performance and design traditions. The 1981 model is especially collectible due to its placement near the end of the Shovelhead era. Enthusiasts value these bikes for their authentic Harley soul, customizable nature, and connection to a transformative era in motorcycle design. A well-restored FXS is both a rider’s machine and a piece of American motorcycling history.