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Triumph · 1976–1979

1977 Triumph T 140 V Bonneville

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1977 Triumph T 140 V Bonneville
Auction record
Average sale
$8,120
Sales
5
Low
$5,600
High
$12,000

Specifications

Category
Classic
Displacement
744.0 ccm (45.40 cubic inches)
Power
49.0 HP (35.8 kW) @ 6500 RPM
Top speed
177.0 km/h (110.0 mph)

The 1977 Triumph T 140 V Bonneville

The 1977 Triumph T 140 V Bonneville sits right at the heart of Triumph's twin-cylinder lineup, the standard-bearer for the parallel-twin format the factory had been refining for decades. This is a bike built for a rider who wants mechanical honesty over convenience: you feel the engine working through the frame, hear it through the pipes, and the five-speed gearbox rewards a deliberate hand rather than a lazy one. It's a machine suited to back roads and weekend runs rather than motorway slogs, where the torque delivery and chassis balance make more sense than raw top-end speed. Ownership means staying friendly with points, carbs, and pushrods.

The 1977 model carried over without significant mechanical changes from the prior year — buyers comparing it to a 1976 example should focus on mileage, service history, and condition rather than spec differences.

Buyers tend to be experienced riders or long-time British bike owners rather than newcomers, often stepping sideways from Japanese classics in search of more character. Given high collector interest in the T140V line, well-documented, unmolested examples increasingly get bought as much for future value as for weekend riding.

Auction history

DateListingPriceMileageSource
Mar 26, 2025Modified 1976 Triumph Bonneville T140V$5,700Bring a Trailer
Oct 21, 20241977 Triumph Bonneville Silver Jubilee Limited Edition$6,800Bring a Trailer
May 8, 20221977 Triumph Bonneville T140V$5,600Bring a Trailer
Jul 13, 2020Modified 1977 Triumph T140 Bonneville$12,000Bring a Trailer
Apr 22, 20201977 Triumph Bonneville T140$10,500Bring a Trailer