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1971 Triumph T120R Bonneville
Traditional
2-cyl. 649cc/46hp
#1 Concours condition#1 Concours
#2 Excellent condition#2 Excellent
#3 Good condition#3 Good
$5,200*
+2%
#4 Fair condition#4 Fair
Jun 2024
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1971-1975 Triumph Bonneville T120 stats
Highest sale
$16,800
Lowest sale
$1,925
Most recent sale
$4,100
Sales
64
Past sales
$4,100
1971 Triumph T120R Bonneville Base
4100 M
North America
Nov 11, 2024Bring a Trailer
View details
$3,600
1971 Triumph T120 Bonneville Base
North America
Nov 9, 2024GAA Classic Cars
View details
$3,250
1972 Triumph T120V Bonneville Base
9000 M
North America
Oct 23, 2024Bring a Trailer
View details
$3,305
1972 Triumph T120R Bonneville Base
Europe
Oct 12, 2024Bonhams
View details
$4,350
1971 Triumph T120R Bonneville Base
10000 M
North America
Aug 5, 2024Bring a Trailer
View details
$5,196
1971 Triumph T120 Bonneville Base
31269 M
Europe
May 16, 2024Car and Classic
View details
Insurance
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**Figure based on a stock 1971 Triumph T120R Bonneville valued at $5,200 with OH rates with $100/300K liability/UM/UIM limits. Actual costs vary depending on the coverage selected, vehicle condition, state and other factors. Hagerty determines final risk acceptance.
Model overview
Model description
For 1971, the Triumph T120R Bonneville received the largest makeover since the unit-construction 649cc parallel-twin engine’s introduction in 1963. While the same engine remained in use, chassis revisions were extensive this year, starting with the new twin-tube frame. This all-welded steel unit incorporated a spine that doubled as an oil reservoir. Problems within BSA group, which owned Triumph, resulted in production delays and difficulties, and few Bonnevilles were ready in dealerships in the spring of ’71. Those that found their way to buyers carried a handsome Tiger gold-and-black tank and gold fenders. Kneepads that had been on the tank since the first Bonneville in 1959 were also now removed.
A result of the integrated oil reservoir was an increase in seat height to 34 inches, so this Bonneville was for tall riders only. An even more obvious change to the bike was the new telescoping hydraulic front fork. Without external springs or rubber gaiters, this fork (which descended from Arturo Ceriani’s advances) gives a clean and modern look that’s accented by the slim fender braces and slender side stand. For the first time, the Bonneville had turn signals, and front and rear side reflectors were included as well. The front brake had a conical hub and large air scoop. Downswept pipes stretched to a tapered megaphone-style finish, adding to the overall modernization. Rear external springs remained, though, to give a note of familiarity. Despite problems arising from lack of testing and development, the 1971 Triumph T120R Bonneville was nevertheless praised for its nifty handling, one grace note in an otherwise less than stellar reception.
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Common Questions
The value of a 1971 Triumph T120R Bonneville can vary greatly depending on its condition, mileage, options, and history. Typically, you can expect to pay around $5,200 for a 1971 Triumph T120R Bonneville in good condition with average spec.
The highest selling price of a 1971 Triumph T120R Bonneville at auction over the last three years was $8,250. The highest prices are usually reserved for rare or exceptionally well-maintained examples with desirable features or modifications and excellent history.
The lowest selling price of a 1971 Triumph T120R Bonneville at auction over the last three years was $2,750. The lowest prices are usually paid for examples that have extensive maintenance needs, differ greatly from their original configuration, or have accident histories or title problems.
In the last three years there have been 7 1971 Triumph T120R Bonnevilles sold at public auction.
The most recent auction sale of a 1971 Triumph T120R Bonneville was $4,100 on November 11, 2024 by Bring a Trailer.
Many factors can increase a car's value including excellent condition, exceptional originality, a recent restoration, low mileage, unique provenance, desirable options, popular or unique color choices, and excellent maintenance records. Upgrades and modifications that enhance performance or aesthetics can also add value.
Factors that can decrease a car's value include unusually high mileage, poor maintenance history, visible wear and tear, accidents or damage, title issues, and gaps in ownership history. Additionally, less popular color choices and extensive modifications that don't appeal to a broad audience can reduce value.
Mileage plays a significant role in a classic car’s value. Lower mileage usually increases value because it indicates a higher degree of originality, is rarer, and suggests less wear and tear. However, cars with exceptionally low mileage may also have maintenance needs due to lack of use. Whether someone should pay more for a vehicle with lower miles will depend on how they plan on using it, and the vehicle's specific condition.
The value of modified cars differs widely based on the type and quality of modifications. While some modifications can significantly increase value, especially performance enhancements and high-quality custom work, others may not add much or could even detract from the car’s value if they appeal to only a limited audience.