1909 Model 5-D Twin: $550,000
The bidding for this bike began at $50,000 and quickly escalated. Potential buyers eagerly competed to own the rare motorcycle. Eventually, the Model 5-D Twin was sold for a staggering $550,000 to a collector who was thrilled to acquire such a historic and valuable piece.
The successful auction made headlines in the motorcycle world, with enthusiasts admiring the impressive sale price. The 5-D Twin was notorious for belt failures which made its reliability questionable. Still, this motorcycle was from the early era of Harley Davidson and a time when the brand was gaining notoriety.