How Much is a Triumph Bonneville Worth at Auction?

The Triumph Bonneville represents a highly variable segment of the classic car market, with strong market activity reflected in 50 auction sales over the past 12 months. The median sale price currently sits at $7,150, with values ranging from $5,312 for entry-level examples to $10,438 for collector-grade vehicles. This 72% price spread indicates significant variation in condition, mileage, and provenance among sold examples.

As a Triumph Bonneville, this vehicle occupies a accessible classic segment. Since its introduction in 1957, it has become a staple for Triumph enthusiasts.

The availability of 195cc Two-Stroke Split-Single and 649cc OHV Parallel-Twin engines and Manual (4-speed) and (4-speed) transmissions significantly impacts the resale value. Enthusiasts often prioritize specific mechanical configurations, with manual transmissions and high-performance engines typically commanding a premium in the current auction climate.