Classic and Classy Motorcycles Ltd

Historical Context

The 1973 Harley-Davidson XLCH Sportster was produced at a pivotal time for both the model and the company. The XLCH, first introduced in 1958, was always the hot, minimalist version of the Sportster, and by 1973 it retained its kickstart-only identity while the rest of the range shifted toward practicality. This year marked the final version of the pure XLCH configuration before Harley-Davidson moved to consolidate the Sportster range and phase out some of the model’s traditional elements. As such, the 1973 XLCH is widely viewed as one of the last true representations of the no-compromise, performance-focused Ironhead Sportsters built for stripped-down speed and street aggression.

Technical Specifications and Performance

• Year: 1973
• Make: Harley-Davidson
• Model: XLCH Sportster
• Engine Displacement: 997cc (marketed as 1000cc)
• Engine Type: OHV 45-degree Ironhead V-twin
• Compression Ratio: 9.0:1
• Carburetion: Bendix carburetor
• Ignition System: Points-type ignition
• Cooling System: Air-cooled
• Transmission Type: 4-speed manual
• Final Drive: Chain
• Braking System: Drum brakes front and rear
• Fuel Capacity: Approx. 2.2 gallons
• Dry Weight: Around 500 lbs
• Top Speed: Approx. 105 mph

Technical Advancements

While the 1973 XLCH maintained many of the traditional features of its predecessors, this model year benefited from subtle refinements. It retained the magneto ignition in earlier versions, but by now most were running battery and coil with a points ignition system. The increased displacement from 900cc to 1000cc in 1972 remained, offering a welcome bump in torque. The Bendix carburetor was easier to tune than older Tillotson setups, and Harley continued to improve build consistency during this period.

Evolution of the Model

The 1973 model year was the end of the line for the kickstart-only XLCH. From 1974 onward, the CH and H features were largely merged, and electric start became more prominent across the Sportster lineup. As such, the '73 XLCH represents the final iteration of a purist’s Sportster — minimalist, high-mounted exhausts, solo seat, peanut tank, and built strictly for the rider who valued stripped-back power and mechanical simplicity over modern conveniences.

Competitors in the Market

The early 1970s motorcycle market was becoming increasingly competitive. Bikes like the Honda CB750, Yamaha XS650, and the Kawasaki H1 were redefining performance expectations. These models featured smoother engines, electric start, and better brakes. However, the XLCH countered with raw torque, a deep V-twin sound, and Harley-Davidson’s unmatched street presence. It wasn’t about refinement—it was about attitude, and for many riders that was non-negotiable.

Legacy and Appeal

As a barn find project, the 1973 XLCH holds strong potential for restoration enthusiasts. It offers a genuine link to the era when Harley’s Sportster was still a bare-knuckle bruiser, unapologetically old-school. With the last of the kick-only configurations and classic Ironhead styling, this model continues to attract collectors and traditionalists who seek authenticity and challenge in equal measure. Once revived, it remains a rider’s machine—mechanical, loud, and proud.