Harley-Davidson SX 175
1977Classic

Harley-Davidson SX 175

Key specifications

Engine
174 cc
Power
17 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 SX 175, a classic gem from the iconic American motorcycle manufacturer that carved a niche for enthusiasts seeking an agile yet powerful ride. Positioned within the entry-level segment, the SX 175 was designed to attract new riders while still appealing to seasoned enthusiasts looking for a lightweight and fun alternative. With its distinctive styling that captures the essence of the 1970s, this motorcycle stands as a testament to Harley-Davidson's ability to innovate while staying true to its roots. At the heart of the SX 175 lies a robust 174cc single-cylinder, two-stroke engine, delivering a respectable 17 horsepower at 6750 RPM. This spirited engine provides a thrilling ride, enabling the bike to reach a top speed of 113 km/h (70.2 mph) with ease. The air-cooled design and a compression ratio of 10.7:1 contribute to its lively performance, while the 5-speed gearbox ensures a smooth transition through gears, enhancing the overall riding experience. Riders will appreciate the nimble handling and lightweight construction, weighing in at just 127 kg (280 pounds), making it ideal for maneuvering through city streets or carving up winding country roads. The SX 175 is equipped with several features that cater to both practicality and style. The expanding brakes at the front and rear provide reliable stopping power, essential for confident riding in various conditions. With a fuel capacity of 10.5 liters (2.77 gallons), riders can enjoy extended journeys without frequent stops, making it suitable for both daily commutes and weekend adventures. The blend of classic design elements and functional components showcases Harley-Davidson's commitment to quality and performance, ensuring that the SX 175 remains a sought-after model among collectors and vintage motorcycle enthusiasts alike. In summary, the 1977 Harley-Davidson SX 175 is a delightful blend of classic charm and spirited performance, making it a standout choice for both new riders and seasoned collectors. Its lightweight design, impressive engine capabilities, and timeless aesthetics offer a unique riding experience that continues to captivate motorcycle enthusiasts today.

Pros

  • Lightweight and Agile: Weighing only 127 kg (280 pounds), the SX 175 is easy to handle, making it perfect for new riders and urban commuting.
  • Classic Design: The vintage styling resonates with motorcycle enthusiasts who appreciate the aesthetics of 1970s motorcycles.
  • Decent Power Output: With 17 horsepower, the engine provides a spirited ride, offering a thrilling experience without overwhelming inexperienced riders.

Cons

  • Limited Top Speed: While 113 km/h (70.2 mph) is respectable for its class, it may feel restricted for those seeking higher performance.
  • Two-Stroke Maintenance: The two-stroke engine requires more frequent maintenance and oil mixing compared to four-stroke engines, which may deter some riders.
  • Basic Features: The SX 175 lacks modern technological advancements, such as disc brakes and advanced suspension systems, which may be a drawback for those accustomed to contemporary motorcycles.

Technical details

Source specification data

Make
Harley-Davidson
Model
SX 175
Category
Classic
Power
17.00 HP (12.4 kW)) @ 6750 RPM
Gearbox
5-speed
Top Speed
113.0 km/h (70.2 mph)
Bore X Stroke
61.0 x 59.6 mm (2.4 x 2.3 inches)
Compression
10.7:1
Displacement
174.00 ccm (10.62 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
127.0 kg (280.0 pounds)
Rear Tyre
3.50-18
Front Tyre
3.00-19
Rear Brakes
Expanding brake
Front Brakes
Expanding brake