All Triumph Models 1961 Motorcycles
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Triumph T 120 R Bonneville

1961

Year1961
MakeTriumph
Displacement649.0 ccm (39.60 cubic inches)
Triumph T 120 R Bonneville
Triumph T 120 R Bonneville - Main Image
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Review

The 1961 Triumph T120R Bonneville holds a significant place in motorcycling history, a direct descendant of Triumph's racing success at the Bonneville Salt Flats. This model year solidified the Bonneville's reputation as a performance icon, a machine that riders aspired to own. In its era, it went head-to-head with formidable rivals like the BSA Gold Star and Norton Commando, battling for supremacy in the burgeoning performance motorcycle market. The '61 Bonneville wasn't just a motorcycle; it was a statement of speed and British engineering prowess, setting a benchmark for what a production twin could achieve.

At the heart of the 1961 T120R Bonneville was its robust 649.0 ccm (39.60 cubic inches) twin, four-stroke engine. This powerhouse delivered a respectable 46.0 HP (33.6 kW) at 6500 RPM, propelling the motorcycle to a top speed of 185.0 km/h (115.0 mph). Weighing in at 178.0 kg (392.4 pounds), the Bonneville offered a favorable power-to-weight ratio for its time. Fuel capacity was a generous 15.14 litres (4.00 US gallons), allowing for decent range between refills. These specifications made the T120R a formidable machine, capable of impressive acceleration and sustained high-speed cruising, a true leader in its class.

Riding the 1961 Bonneville offered a distinct experience. The seat, with a lowest setting of 770 mm (30.3 inches), provided a relatively accessible riding position, though certainly not a low-slung cruiser stance. Its standard ergonomics leaned towards a sporty, engaged posture, encouraging the rider to be part of the machine rather than simply sitting on it. The twin-cylinder engine provided a characteristic thrum, a sound that became synonymous with performance British motorcycles. Handling was generally praised for its responsiveness, making it an engaging ride on winding roads as well as for covering long distances.

The 1961 Triumph T120R Bonneville was primarily aimed at the enthusiast rider who valued performance, style, and a connection to racing heritage. It appealed to those seeking a powerful and capable motorcycle for spirited rides and touring, rather than urban commuting. Today, it remains a highly sought-after classic, embodying an era of raw power and iconic design. For collectors and vintage motorcycle aficionados, the '61 Bonneville is more than just transportation; it's a piece of history, a testament to a golden age of British motorcycling, and a machine that continues to captivate with its timeless appeal and formidable specifications.

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Pros (Advantages)

✅ Why buy this bike?

• Iconic styling and classic British parallel-twin engine sound, highly desirable for collectors and enthusiasts. • Nimble handling for its era, offering a spirited ride on B-roads and through winding country lanes. • Relatively simple mechanical design, making home maintenance and repairs achievable for the knowledgeable owner. • Strong aftermarket support for parts and restoration, ensuring longevity and availability of components. • Good power-to-weight ratio for a 1961 650cc machine, delivering respectable acceleration and top speed. • Solid investment potential; well-maintained examples continue to appreciate in value due to classic status.
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Cons (Disadvantages)

⚠️ Things to consider

• Lucas electrics are notoriously unreliable, often leading to frustrating breakdowns and wiring issues. • Vibration levels at higher RPMs can be significant, leading to rider fatigue on longer journeys. • Braking performance, especially the drum brakes, is rudimentary by modern standards, requiring careful planning. • Oil leaks are a common characteristic, often requiring diligent maintenance and sealing efforts. • Kick-starting can be challenging for some, especially when cold or if the ignition timing isn't perfect.
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License Class (EU)

The Triumph T 120 R Bonneville produces 46 HP, fitting A2 license limits (max 35 kW / 47 HP). For riders 18+.

Fuel Economy & Running Costs

Estimated average for 649cc class: 35-50 mpg (5.0-7.0 L/100km)

⛽ Tank: 15.14 litres (4.00 US gallons)

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Insurance Class

Insurance grouping for Triumph T 120 R Bonneville (649cc):

  • 📋 Group 15-20+ — performance class, higher premiums
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    Insurance Calculator (UK est.)

    Personalised premium estimate for the Triumph T 120 R Bonneville (UK rates):

    💡 Estimate based on UK market averages. For real quotes, compare on Compare the Market, MoneySuperMarket, GoCompare.

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    Buy New & Used

    Find new and used Triumph T 120 R Bonneville 1961 listings:

    💡 Third-party listings. MotoBike Info is informational only.

  • 👤 Final premium varies by rider age, history, location.
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