1977 Harley-Davidson SX175 Project

The 1977 Harley-Davidson Aermacchi is sold for $1,400 on Bring a Trailer. See Friday's Watchlist AI fair value, deal score, hammer-price prediction, and bidding intelligence for this 1977 Harley-Davidson Aermacchiauction.

The 1977 Harley-Davidson SX175 is a unique piece of motorcycle history, representing the brand's foray into lightweight two-stroke bikes. This particular model, with only 3,000 miles shown, is a non-running project that offers enthusiasts a chance to restore a classic. Its 174cc two-stroke single engine, paired with a five-speed gearbox, provides a solid foundation for a fun restoration project. The bike features a kick starter, electronic ignition, and a high-mount exhaust system, making it a distinctive choice for collectors or hobbyists looking to bring a piece of Harley's legacy back to life. With its black paint and multi-colored graphics, this SX175 is sure to turn heads once restored. Ideal for those who appreciate vintage motorcycles and are willing to invest time and effort into a project.

• Make: Harley-Davidson
• Model: Aermacchi
• Year: 1977
• Engine: 3k Miles Shown
• Exterior color: black and equipped
• VIN: 5D10316H8

Seller's description via Bring a Trailer: This 1977 Harley-Davidson SX175 was reportedly part of a 30-bike collection acquired by the selling dealer in 2026. The bike is a non-running project finished in black and equipped with a 174cc two-stroke single paired with a five-speed gearbox. Details include a kick starter, electronic ignition, a