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Triumph · 1968–1969

1968 Triumph Bonneville T120R Roadster

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1968 Triumph Bonneville T120R Roadster
Auction record
Average sale
$10,661
Sales
14
Low
$4,500
High
$20,500
-17%vs prior 12 months

Specifications

Category
Sport
Displacement
649.0 ccm (39.60 cubic inches)
Power
46.0 HP (33.6 kW) @ 6500 RPM
Top speed
185.0 km/h (115.0 mph)

The 1968 Triumph Bonneville T120R Roadster

1968 Triumph Bonneville T120R Roadster sits at the top of Triumph's parallel-twin range as the sportier, US-market-focused sibling to the standard Bonneville, built for riders who wanted performance over touring comfort. This is a bike that rewards a rider willing to work the gearbox and stay attentive to the road, delivering the kind of tight, direct feedback that made British twins the benchmark before Japanese manufacturers caught up on refinement. Ownership means embracing some quirks: it vibrates, it demands regular maintenance, and it will leak a little oil somewhere, but it rewards patience with genuinely engaging power delivery and a top speed that still feels lively decades later. The 1968 model carried over without significant mechanical changes from the prior year, so buyers comparing it to a 1967 example should focus on mileage, service history, and condition rather than spec differences. Today's buyers tend to be experienced riders or collectors stepping away from modern machines in search of mechanical honesty, and with collector interest running high, well-documented, original examples of the 1968 Triumph Bonneville T120R Roadster command serious attention at auction rather than casual browsing.

Auction history

DateListingPriceMileageSource
Jun 24, 20261968 Triumph Bonneville T120R Bobber$4,500Bring a Trailer
Mar 29, 20261968 Triumph Bonneville T120R$11,050Bring a Trailer
Nov 17, 20251968 Triumph Bonneville T120R$6,600Bring a Trailer
Oct 22, 20251968 Triumph Bonneville T120R$10,500Bring a Trailer
Aug 8, 2025Ex–Billie Joe Armstrong 1968 Triumph Bonneville T120R$6,200Bring a Trailer
Jan 15, 20251968 Triumph Bonneville T120R$13,000Bring a Trailer
Jan 2, 20251968 Triumph Bonneville T120R$10,250Bring a Trailer
Jul 15, 20241968 Triumph Bonneville T120R$12,750Bring a Trailer
Apr 13, 20241968 Triumph Bonneville T120R$17,500Bring a Trailer
Aug 21, 20231968 Triumph Bonneville T120R$20,500Bring a Trailer
May 21, 2023Modified Triumph Bonneville$5,700Bring a Trailer
Aug 10, 20221968 Triumph Bonneville T120R$10,250Bring a Trailer
Jul 23, 20201968 Triumph Bonneville T120R$14,000Bring a Trailer
Jul 16, 20201968 Triumph Bonneville T120R$6,450Bring a Trailer