
Harley-Davidson Model W Sport Twin
Key specifications
Overview
Introducing the 1921 Harley-Davidson Model W Sport Twin, a remarkable embodiment of the roaring twenties and a testament to Harley-Davidson's innovative spirit. Positioned in the allround category, this motorcycle was designed to appeal to a wide range of riders who sought both utility and style. The Model W Sport Twin marked a pivotal moment in Harley's evolution, blending performance with practicality, making it a sought-after choice for enthusiasts and everyday riders alike. With its classic design and robust engineering, the Model W has secured its place in the annals of motorcycle history, offering a nostalgic peek into the early days of American motorcycling. At the heart of the Model W Sport Twin lies a 584cc (35.64 cubic inches) two-cylinder boxer engine, delivering a unique blend of power and smoothness that defines its riding character. With a compression ratio of 5.8:1, this four-stroke engine produces a harmonious balance of torque and responsiveness, allowing riders to navigate urban streets or open highways with confidence. The bore and stroke measurement of 69.8 x 96.8 mm (2.7 x 3.8 inches) contributes to a pleasing engine note that is music to the ears of any motorcycle lover. Paired with a reliable HD generator ignition and an efficient carburettor fuel system, the Model W offers a spirited yet manageable ride, making it an excellent choice for both seasoned motorcyclists and newcomers. In terms of features, the Model W Sport Twin was ahead of its time, showcasing a shaft drive (cardan) system that offered smooth power delivery and reduced maintenance compared to chain-driven counterparts. Its lightweight design, at just 113 kg (249.1 pounds), allows for agile handling and nimble maneuverability. The combination of a robust frame and classic styling, complete with vintage touches, ensures that the Model W not only performs impressively but also turns heads wherever it goes. This motorcycle captures the essence of early 20th-century engineering, making it a prized possession for collectors and a joy to ride for enthusiasts. **
Pros
- Innovative Shaft Drive: Offers smoother power delivery and less maintenance than traditional chain systems.
- Lightweight and Agile: The relatively low weight enhances handling, making it easy to navigate tight corners and urban environments.
- Classic Styling: Timeless design that appeals to vintage motorcycle enthusiasts and collectors alike.
Cons
- Limited Power Output: With modest engine performance, it may not satisfy riders seeking high-speed thrills.
- Basic Technology: Lacks modern features such as advanced suspension or braking systems, which may deter some riders.
- Availability of Parts: As a vintage model, sourcing replacement parts can be a challenge for maintenance and restoration.
Technical details
Source specification data
- Make
- Harley-Davidson
- Model
- Model W Sport Twin
- Category
- Allround
- Ignition
- HD Generator
- Fuel System
- Carburettor
- Bore X Stroke
- 69.8 x 96.8 mm (2.7 x 3.8 inches)
- Compression
- 5.8:1
- Displacement
- 584.00 ccm (35.64 cubic inches)
- Engine Details
- Two cylinder boxer, four-stroke
- Transmission Type Final Drive
- Shaft drive (cardan)
- Dry Weight
- 113.0 kg (249.1 pounds)
- Seat
- Solo seat with springs
- Wheels
- Spoked
- Rear Tyre
- 3-26
- Front Tyre
- 3-26