In 1928, Excelsior hired Arthur Constantine away from Harley to become their Chief Engineer – he immediately redesigned their DeLuxe model into the KJ, also known as the Streamline. Henderson marketed it as having 57 new features, and it was capable of hitting 100 miles per hour.
The KJ was available between 1929 and 1931 (when the boss of Schwinn/Excelsior/Henderson) famously called his department heads together and told them, with no warning, “Gentlemen, today we stop.” Until then, the KJ produced 40 horsepower and was ahead of its time with features like an illuminated speedometer mounted on the gas tank (Harley would copy that 5 years later) and the leading link forks. For more on the Henderson KJ, check out this profile from Hemmings. You’ll want to read up, because the seller doesn’t share much about his/her very valuable motorcycle.
All the listing tells you that it’s in excellent condition thanks to an older restoration. Everything works and it starts and runs as it should. Find this rolling legend for sale in Arlington Heights, Illinois with bidding up to $40,119 and the reserve not yet met