Tag: Ace Four

The spectacular 1923 Ace Four Sporting Solo was the ultimate American 4-cylinder motorcycle. Its reputation was second to none, and for a time was the fastest production motorcycle in the world when it was introduced. The Ace was the final legacy of William Henderson, who had already established his machines’ reputations as the toughest and fastest motorcycles on earth. William and Thomas Henderson founded the Henderson Motorcycle Company in Detroit in 1912, and the brothers immediately established an amazing reputation for their machines as durable, fast and beautifully built—the “Duesenberg of Motorcycles” they were often referred to as.