Here are some key details about the 1915 Harley-Davidson Heavy Duty Single:
1. Engine: The 1915 Heavy Duty Single was powered by a single-cylinder engine. It had a displacement of 35.74 cubic inches (585 cc). The engine was an F-head design, meaning it had both intake and exhaust valves located in the cylinder head.
2. Transmission: This motorcycle featured a 3-speed, hand-shifted transmission.
3. Frame: The frame of the 1915 Heavy Duty Single was constructed using steel tubing, and it featured a rigid (non-suspension) rear end.
4. Belt Drive: Like many motorcycles of its era, the 1915 Harley-Davidson Single used a belt drive system to transfer power from the engine to the rear wheel.
5. Brakes: Early motorcycles often had rudimentary braking systems, and the 1915 model was no exception. It typically featured a contracting band on the rear wheel to provide braking.
6. Kickstart: Starting the motorcycle required a kickstarter, which was a common method for starting motorcycles of that time.
7. Design: The 1915 Harley-Davidson Single had a classic, vintage design with a minimalist appearance. It featured a solo saddle, exposed engine components, and spoked wheels.
8. Historical Significance: Harley-Davidson has a long and storied history in the motorcycle industry, and the 1915 Heavy Duty Single is a part of that legacy. It was one of the models that contributed to the company’s early reputation for producing durable and reliable motorcycles.
9. Collectibility: Vintage Harley-Davidson motorcycles, including the 1915 Heavy Duty Single, are highly collectible today. Restored and well-maintained examples of these motorcycles can command high prices in the collector’s market.
It’s important to note that specific details and features of the 1915 Harley-Davidson Single may vary depending on the model variant and any modifications made over the years. If you are interested in learning more or obtaining detailed information about a particular 1915 Harley-Davidson Heavy Duty Single, it is advisable to consult historical records, vintage motorcycle enthusiasts, or Harley-Davidson experts who may have access to specific documentation and knowledge about individual motorcycles from that era.