Harley-Davidson Model D
1929Sportbike

Harley-Davidson Model D

Key specifications

Engine
743 cc
Fuel type
petrol
Transmission
3-speed

Overview

Introducing the 1929 Harley-Davidson Model D, a benchmark in the evolution of American motorcycles and a true embodiment of the roaring twenties spirit. Positioned as a sport motorcycle, the Model D was tailored for enthusiasts who craved both performance and style. With its distinctive design, this motorcycle not only represented a pinnacle of engineering for its time but also became a symbol of freedom and adventure on two wheels. In an era where speed and agility were becoming increasingly prized, the Model D carved its niche, capturing the hearts of riders who sought a blend of ruggedness and refinement. At the heart of the 1929 Model D lies a robust 742.60 ccm (45.31 cubic inches) V2, four-stroke engine, which delivers a thrilling ride with its impressive compression ratio of 7.5:1. The carefully engineered bore and stroke of 69.8 x 96.8 mm ensure a balanced power delivery, making it not just a machine for show but a formidable competitor on the road. The 3-speed gearbox, coupled with a reliable chain final drive, allows for smooth power transitions, making the Model D an exhilarating ride. Riders will appreciate how the engine's performance comes alive, delivering both torque and speed, making it perfect for spirited rides through winding roads or leisurely cruises down open highways. Beyond its powerful engine, the Model D shines with features that were cutting-edge for its time. The carburettor fuel system provides a responsive throttle, while the chassis is designed for stability and comfort, allowing riders to enjoy longer journeys without sacrificing handling. The classic Harley-Davidson styling, complete with chrome accents and a rich paint finish, adds a touch of elegance that stands out in any gathering of vintage motorcycles. The Model D is not just a mode of transport; it's a piece of history that reflects the innovation and craftsmanship that Harley-Davidson is known for. **

Pros

  • Powerful Engine: The V2 engine delivers robust performance, providing an exhilarating riding experience.
  • Stylish Design: Classic lines and chrome accents make it a head-turner at any motorcycle event.
  • Solid Build Quality: The durable construction ensures longevity and reliability, making it a cherished collectible.

Cons

  • Limited Speed Options: The 3-speed gearbox may feel restrictive compared to modern motorcycles with more gears.
  • Comfort Concerns: The riding position may not be as ergonomic for long-distance travel as contemporary designs.
  • Maintenance Needs: Older technology can require more frequent and specialized maintenance, which may be a challenge for some owners.

Technical details

Source specification data

Make
Harley-Davidson
Model
Model D
Category
Sport
Gearbox
3-speed
Fuel System
Carburettor
Bore X Stroke
69.8 x 96.8 mm (2.7 x 3.8 inches)
Compression
7.5:1
Displacement
742.60 ccm (45.31 cubic inches)
Engine Details
V2, four-stroke
Transmission Type Final Drive
Chain
Seat
Solo seat with springs
Wheels
Spoked
Rear Tyre
3-26
Front Tyre
3-26