Harley-Davidson SS 125
1977Minibike

Harley-Davidson SS 125

Key specifications

Engine
123 cc
Power
13 HP
Fuel type
petrol
Fuel capacity
2.8 L
Transmission
5-speed
Front brakes
Expanding brake
Rear brakes
Expanding brake

Overview

Introducing the 1977 Harley-Davidson SS 125, a remarkable entry in the world of minibike-sport motorcycles that captures the spirit of freedom and adventure synonymous with the Harley-Davidson brand. Designed for both the seasoned rider and those new to the thrilling world of two-wheeled exploration, the SS 125 combines classic Harley styling with a compact, agile build. This model sits in a unique niche, offering an exciting ride for urban commuting, weekend jaunts, or spirited off-road excursions, all while maintaining a playful character that sets it apart from larger cruisers. At the heart of the SS 125 is a spirited single-cylinder, two-stroke engine with a displacement of 123cc, delivering an impressive 13 horsepower at 7,000 RPM. This powerplant is engineered for agility, propelling the bike to a top speed of 110 km/h (68.4 mph), making it a fun option for those seeking thrills without the weight of a larger motorcycle. With a compression ratio of 10.8:1 and a lightweight chassis, the SS 125 offers a peppy acceleration that is both exhilarating and accessible. Riders will appreciate the 5-speed gearbox that facilitates smooth gear shifts, allowing them to harness the full potential of the bike's power while enjoying a responsive riding experience. The 1977 SS 125 is packed with features that speak to the innovative spirit of Harley-Davidson. Its air-cooled engine is designed for reliability, ensuring that you can tackle a variety of terrains with confidence. The expanding brakes on both the front and rear wheels provide ample stopping power, enhancing safety without compromising the bike's lightweight agility. With a fuel capacity of 10.5 liters (2.77 gallons), riders can enjoy longer rides without the constant worry of refueling. The SS 125's sleek design is not just about looks; it embodies a practical approach to performance, making it an ideal choice for anyone looking to embrace the thrill of motorcycling. **

Pros

  • Lightweight and Agile: At just 112 kg (246.9 lbs), the SS 125 is easy to handle, making it a great choice for both new riders and experienced enthusiasts looking for a nimble ride.
  • Peppy Performance: The 13 HP engine delivers exciting acceleration and a top speed that keeps the fun factor high, perfect for urban riding or off-road adventures.
  • Classic Harley Flair: The iconic design elements of Harley-Davidson make this minibike stand out, blending vintage charm with modern performance.

Cons

  • Limited Power for Highway Riding: While the SS 125 excels in urban environments, its smaller engine may struggle on highways or at higher speeds compared to larger motorcycles.
  • Minimal Storage Capacity: As a sport minibike, it offers limited storage options, making it less practical for long-distance touring or carrying gear.
  • Two-Stroke Engine Maintenance: The two-stroke engine requires more frequent maintenance and care than four-stroke counterparts, which might deter some riders looking for a low-maintenance option.

Technical details

Source specification data

Make
Harley-Davidson
Model
SS 125
Category
Minibike-sport
Power
13.00 HP (9.5 kW)) @ 7000 RPM
Gearbox
5-speed
Top Speed
110.0 km/h (68.4 mph)
Bore X Stroke
56.0 x 50.0 mm (2.2 x 2.0 inches)
Compression
10.8:1
Displacement
123.00 ccm (7.51 cubic inches)
Cooling System
Air
Engine Details
Single cylinder, two-stroke
Transmission Type Final Drive
Chain
Fuel Capacity
10.50 litres (2.77 gallons)
Weight Incl Oil Gas Etc
112.0 kg (246.9 pounds)
Rear Tyre
3.50-18
Front Tyre
3.00-19
Rear Brakes
Expanding brake
Front Brakes
Expanding brake