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Hercules 313 Starr
1955Sportbike

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 1955 Hercules 313 Starr, a timeless classic that embodies the spirit of post-war European motorcycling. Positioned within the sport category, this lightweight bike is a delightful blend of style and performance, making it a cherished model for collectors and vintage enthusiasts alike. With its distinct design and historical significance, the 313 Starr not only captures the essence of 1950s motorcycling culture but also offers a nostalgic ride that appeals to both seasoned bikers and newcomers drawn to its vintage charm. At the heart of the Hercules 313 Starr lies a spirited 123cc single-cylinder, two-stroke engine, delivering a respectable 6.5 horsepower at 4700 RPM. This compact powerhouse, with a bore and stroke of 57mm x 58mm, offers a top speed of 85 km/h (52.8 mph), making it an exhilarating choice for spirited rides through winding country roads. The air-cooled engine is paired with a Sachs 18mm carburettor, ensuring a responsive throttle and lively acceleration. Its lightweight construction, tipping the scales at just 90 kg (198.4 pounds), results in an exceptional power-to-weight ratio of 0.0722 HP/kg, providing riders with a nimble and responsive experience that enhances maneuverability and control. The Hercules 313 Starr is equipped with features that reflect the technological advancements of its time. The bike’s suspension system consists of a telescopic front fork and a rigid rear, designed to provide a balance of comfort and stability. Both the front and rear are equipped with expanding drum brakes, delivering reliable stopping power as you navigate through sharp corners or city streets. With a classic kick starter, this motorcycle embraces the authentic riding experience, allowing riders to feel deeply connected to the machine as they fire up the engine for another adventure. **

Pros

  • Lightweight and Nimble: At just 90 kg, the 313 Starr allows for easy handling and agility, making it a joy to ride in urban environments or winding roads.
  • Classic Aesthetic: The 1955 design showcases vintage styling that appeals to classic motorcycle enthusiasts and collectors alike.
  • Simple Maintenance: The air-cooled, two-stroke engine design simplifies maintenance, making it a great choice for those who enjoy working on their own bikes.

Cons

  • Limited Power: The 6.5 HP output may not satisfy riders looking for high-performance thrills, especially when compared to modern motorcycles.
  • Basic Technology: The absence of advanced braking and suspension systems may mean a less refined ride compared to contemporary bikes.
  • Kick Start Only: The traditional kick starter may prove challenging for some riders, especially in colder weather or for those accustomed to electric start systems.

Technical details

Source specification data

Make
Hercules
Model
313 Starr
Category
Sport
Starter
Kick
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