Harley-Davidson KR 750 1957 - Specifications & Review

Introducing the legendary 1957 Harley-Davidson KR 750, a motorcycle that epitomizes the spirit of American ingenuity and rugged adventure. As part of Harley-Davidson's Enduro-offroad category, the KR 750 was designed for the discerning rider who craved both thrilling performance and the versatility to conquer a variety of terrains. With its distinctive styling and rich heritage, this bike not only carved a niche for itself in the world of racing and off-road riding but also remains a coveted classic among collectors and enthusiasts today.

At the heart of the KR 750 lies a robust V2, four-stroke engine with a displacement of 744 ccm. This muscular powerplant generates 46 horsepower at 6,500 RPM, propelling the bike to a top speed of 110 mph. Such performance is complemented by a smooth 4-speed gearbox, allowing riders to harness the full potential of the engine with ease. The single Tillotson carburettor ensures efficient fuel delivery, while the air-cooled design keeps the engine running cool even during the most demanding rides. Whether you're tearing down a dirt trail or cruising on pavement, the KR 750 offers a thrilling experience with its impressive power-to-weight ratio of 0.2817 HP/kg.

Key features of the 1957 KR 750 include its advanced (for the era) telescopic front suspension, which provides improved handling and comfort over uneven surfaces. Meanwhile, the rigid rear suspension emphasizes the bike's robust construction, delivering a solid feel that many riders appreciate during off-road adventures. The Fairbanks-Morse magneto ignition system further enhances reliability, ensuring that this classic machine starts up with confidence every time. The KR 750's blend of rugged aesthetics and practical technology makes it a standout choice for enthusiasts who appreciate both style and substance.

Pros:

1. Classic Design: The KR 750 boasts a timeless aesthetic that resonates well with vintage motorcycle enthusiasts and collectors.
2. Strong Performance: With a powerful V2 engine and impressive speed capabilities, this bike delivers an exhilarating ride experience.
3. Off-Road Capability: Designed for Enduro riding, the KR 750 is built to tackle diverse terrains with ease, making it a versatile choice for adventurous riders.

Cons:

1. Limited Comfort: The rigid rear suspension may not provide the most comfortable ride over long distances or rough surfaces.
2. Manual Ignition: The magneto ignition system, while reliable, lacks the convenience of modern electronic ignition systems.
3. Weight Considerations: Weighing in at 360 pounds, the KR 750 can be cumbersome for less experienced riders or those seeking a lighter off-road option.

In summary, the 1957 Harley-Davidson KR 750 is not just a motorcycle; it's a piece of history that offers a blend of performance, rugged charm, and a nod to the golden age of American motorcycling. Whether you're hitting the trails or simply enjoying a weekend ride, the KR 750 is a motorcycle that promises an unforgettable experience.