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Hercules 313 Starr
1956Sportbike

Hercules 313 Starr

Key specifications

Engine
123 cc
Power
7 HP
Weight
90 kg
Fuel type
petrol
Front brakes
Expanding brake (drum brake)
Rear brakes
Expanding brake (drum brake)

Overview

Introducing the 1956 Hercules 313 Starr, a classic sport motorcycle that embodies the spirit of post-war European innovation. During a time when the motorcycle market was saturated with larger, more powerful machines, the Hercules 313 Starr carved its niche with a focus on agility and efficiency. With its lightweight design and nimble handling, this bike appealed to riders seeking a thrilling experience without the burden of a heavyweight. Whether you were navigating through the bustling streets of a city or carving up the winding roads of the countryside, the Hercules 313 Starr offered an inviting blend of performance and style that captured the essence of mid-century motorcycling. At the heart of the 313 Starr lies a 123 cc single-cylinder, two-stroke engine, producing a modest yet spirited 6.5 horsepower at 4,700 RPM. This power unit is engineered to deliver a top speed of 85 km/h (52.8 mph), making it an exhilarating ride for enthusiasts who appreciate the art of lightweight performance. The bike’s bore and stroke dimensions of 57.0 x 58.0 mm provide a balanced power delivery, while the Sachs 18mm carburetor ensures optimal fuel intake for smooth acceleration. Riders will appreciate the air-cooled setup, which not only minimizes weight but also enhances the bike’s simplicity and reliability. The chain final drive contributes to a responsive feel that makes every twist of the throttle a thrill, promising a riding experience that’s as engaging as it is memorable. The Hercules 313 Starr is equipped with features that showcase the ingenuity of its time. A telescopic front suspension ensures that riders enjoy stability and comfort, while the rigid rear suspension provides a classic feel that resonates with enthusiasts of vintage motorcycles. The expanding drum brakes at both the front and rear offer reliable stopping power, allowing riders to confidently navigate their surroundings. Weighing in at just 90 kg (198.4 pounds), this motorcycle boasts an impressive power-to-weight ratio of 0.0722 HP/kg, enhancing its agility and responsiveness on the road. As a sport motorcycle, the design is sleek and purposeful, drawing attention with its classic lines and vintage charm. In summary, the 1956 Hercules 313 Starr is a charming representation of an era in motorcycling that emphasized lightweight, simplicity, and a sense of freedom. With its spirited performance and classic design, it remains a beloved choice among vintage motorcycle enthusiasts who cherish the thrill of riding a piece of history.

Pros

  • Lightweight and Agile: At only 90 kg, the 313 Starr delivers exceptional maneuverability, perfect for urban riding or spirited country excursions.
  • Vintage Aesthetic: Its classic design and unique styling make it a standout at any motorcycle gathering, appealing to collectors and enthusiasts alike.
  • Simplicity of Maintenance: The straightforward air-cooled, two-stroke engine and basic mechanical components mean maintenance can be performed easily by home mechanics.

Cons

  • Limited Power: With just 6.5 HP, the performance may feel underwhelming for riders accustomed to more powerful modern motorcycles.
  • Basic Suspension and Brakes: While functional, the telescopic front and drum brakes may not meet the expectations of those seeking advanced handling and stopping capabilities found in contemporary bikes.
  • Niche Market Appeal: Its vintage appeal may limit its practicality for everyday use, making it more suitable as a collector’s item than a daily rider.

Technical details

Source specification data

Make
Hercules
Model
313 Starr
Category
Sport
Power
6.50 HP (4.7 kW)) @ 4700 RPM
Top Speed
85.0 km/h (52.8 mph)
Fuel System
Carburettor. Sachs 18mm
Bore X Stroke
57.0 x 58.0 mm (2.2 x 2.3 inches)
Displacement
123.00 ccm (7.51 cubic inches)
Cooling System
Air
Engine Details
Single cylinder, two-stroke
Transmission Type Final Drive
Chain
Dry Weight
90.0 kg (198.4 pounds)
Power Weight Ratio
0.0722 HP/kg
Seat
Spring-mounted seat
Rear Tyre
2.75-19
Front Tyre
2.75-19
Rear Brakes
Expanding brake (drum brake)
Front Brakes
Expanding brake (drum brake)
Rear Suspension
Rigid
Front Suspension
Telescopic