Classic and Classy Motorcycles Ltd

Historical Context

The 1972 Harley-Davidson XLCH Sportster represented a high-performance variant of the long-standing Sportster line, first introduced in 1957. The “CH” stood for “Competition Hot,” and it was marketed as the more aggressive, stripped-down counterpart to the electric-start XLH model. By 1972, the XLCH had evolved from a kickstart-only, magneto-ignition hot rod into a slightly more refined yet still spartan machine with serious street credibility. This was also the first year the Sportster received a displacement increase from 900cc to 1000cc, thanks to a bump in bore size. That change brought noticeable performance gains and solidified the XLCH’s place as a performance-focused American V-twin.

Technical Specifications and Performance

• Year: 1972
• Make: Harley-Davidson
• Model: XLCH Sportster
• Engine Displacement: 997cc (marketed as 1000cc)
• Engine Type: Ironhead OHV 45-degree V-twin
• Compression Ratio: 9.0:1
• Carburetion: Tillotson or 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 490 lbs
• Top Speed: Approx. 105 mph

Technical Advancements

While the XLCH retained its traditional kickstarter, it was significantly improved in 1972 through refinements in clutch operation and internal gearing. The big news was the increased engine displacement, which provided more horsepower and torque across the RPM range. Other updates included a stronger generator and minor changes to the electrical system. Despite these refinements, the bike kept its raw edge—no electric start, drum brakes, and a firm ride—appealing to riders who preferred a purist, stripped-down approach to motorcycling.

Evolution of the Model

The XLCH had always been the lighter, more aggressive sibling in the Sportster lineup. By 1972, however, it was beginning to approach the end of its production life. The next few years would see the merging of XLH and XLCH features, and by 1979, the separate CH designation would disappear altogether. This makes the 1972 model particularly notable—it still carried the traits that had made the CH a street-riding legend in the 1960s: solo saddle, smaller fuel tank, high ground clearance, and performance-tuned gearing.

Competitors in the Market

In the early 1970s, the XLCH faced new challenges from Japanese imports like the Honda CB750 and the Yamaha XS650. These motorcycles offered electric start, smoother engines, and disc brakes. However, none could match the Harley's low-end torque, deep exhaust note, and raw character. The XLCH was for riders who valued attitude and tradition over refinement—a trait that Harley-Davidson would continue to cultivate for decades.

Legacy and Collector Appeal

The 1972 XLCH stands out today as one of the last truly “hardcore” factory Sportsters. Its combination of kick-start only simplicity, increased displacement, and lightweight frame make it a favorite among vintage Harley enthusiasts. As a bridge between the original 900cc units and the more modernized Sportsters of the late 1970s, the 1972 model remains highly collectible and is often sought after for both restorations and period-correct customs.