How Much is a 1951 Triumph Thunderbird Worth at Auction?

The 1949 Triumph Thunderbird is an iconic vintage motorcycle introduced in the 1949 production year, its 650cc Edward Turner–designed parallel-twin and sweeping chrome tank defining postwar British style. Beloved by classic car and motorcycle enthusiasts for its torquey performance, twin exhausts and low-slung profile, the Thunderbird helped cement Triumph’s popularity in the U.S. Combining distinctive period coachwork, dependable engineering and strong collectible appeal, the Triumph Thunderbird remains a standout piece for vintage and classic car collectors.