Across 10 covered model years from 2016 to 2025, the Triumph Bonneville T120 motorcycle has supplied wet/running weights ranging from 493.8 lb (224 kg) to 520.1 lb (235.9 kg) and dry weights ranging from 493.8 lb (224 kg), depending on model year.
Triumph Bonneville T120 weight overview
This is a substantial motorcycle. The weight matters most when stopped, backing it up, parking on a slope or recovering from a lean.
Heavy Motorcycle
How heavy is the Triumph Bonneville T120?
wet weight
Using a model-level wet weight comparison, the Triumph Bonneville T120 is heavier than about 90.6% of 32 Triumph classic motorcycles with compatible weight data.
Dry vs ready-to-ride weight
Bike + rider total weight
These totals use the model’s representative wet weight. They exclude riding gear, luggage and a passenger.
Triumph Bonneville T120 weight & related specs
| Model years covered | 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 |
|---|---|
| Wet / running weight | 493.8 lb (224 kg) to 520.1 lb (235.9 kg) |
| Dry weight | 493.8 lb (224 kg) |
| Engine displacement | 1,200 cc |
| Power | 80 hp |
| Torque | 77.4 lb-ft (105 Nm) |
| Fuel capacity | 3.4 US gal (12.87 L) to 3.83 US gal (14.5 L) |
| Full-tank fuel weight (estimated) | 21.1 lb (9.6 kg) to 23.8 lb (10.8 kg) |
Weight changes by model year
The 2016 model is used as the baseline where data is available. Only later supplied values that differ are shown below. A year pill does not mean every individual weight field was supplied for that year.
Useful weight calculations
| Horsepower per 100 lb | 16.2 hp / 100 lb |
|---|---|
| Pounds per horsepower | 6.17 lb / hp |
| Torque per 100 lb | 14.89 lb-ft / 100 lb to 15.68 lb-ft / 100 lb |
| Displacement per pound | 2.31 cc / lb to 2.43 cc / lb |
| Weight per 100 cc | 41.2 lb / 100 cc to 43.3 lb / 100 cc |
| Fuel weight as % of bike weight | 4.3% to 4.8% |
| Weight with full tank | 515 lb (233.6 kg) to 517.7 lb (234.8 kg) |
What the weight numbers tell you
Triumph Bonneville T120 weight FAQ
How much does the Triumph Bonneville T120 weigh?
For the model years covered here, wet/running weight is 493.8 lb (224 kg) to 520.1 lb (235.9 kg), while dry weight is 493.8 lb (224 kg). Do not treat dry and wet figures as interchangeable.
How does the Triumph Bonneville T120 weight compare with similar Triumphs?
It is on the heavier side. Its representative wet weight is around the 91st percentile among 32 compatible Triumph classic motorcycles.
Are all Triumph Bonneville T120 model years the same weight?
There are year-to-year differences in the supplied data. The earliest covered year is used as the baseline, with later changed values shown separately above.
What does a full tank of gas weigh on the Triumph Bonneville T120?
A full tank works out to about 21.1 lb (9.6 kg) to 23.8 lb (10.8 kg) from the listed 3.4 US gal (12.87 L) to 3.83 US gal (14.5 L) capacity. Actual fuel density varies slightly, so treat it as a practical estimate.
What does the Triumph Bonneville T120 weigh with a 180 lb rider?
The approximate combined total is 700.1 lb (317.5 kg) with a 180 lb rider, based on the representative wet/running weight used on this page.
Is the Triumph Bonneville T120 strong for its weight?
The calculated range is 16.2 hp per 100 lb. This ratio is usually more informative for acceleration comparisons than horsepower alone. That places it around the 93rd percentile within the compatible Triumph classic power-to-weight comparison.
What does the Triumph Bonneville T120 weigh with a full tank?
The page calculates about 515 lb (233.6 kg) to 517.7 lb (234.8 kg) with a full tank by adding the listed fuel mass to the dry figure. Treat this as a practical estimate, not an official Triumph curb-weight number.
What is the Triumph Bonneville T120 torque-to-weight ratio?
Available data gives 14.89 lb-ft per 100 lb to 15.68 lb-ft per 100 lb. That ratio helps explain how strong the engine is relative to the bike’s mass, especially at lower speeds.
How large is the Triumph Bonneville T120 engine for its weight?
The model has about 2.31 cc per lb to 2.43 cc per lb in the available data. This simply shows how much engine displacement there is for each pound of motorcycle weight.
Motorcycle specifications can vary by model year, market, equipment and the exact dry/curb-weight definition. Calculated fuel-weight and ratio figures on this page are estimates derived from the supplied specifications. Confirm critical figures in the owner’s manual or on the official Triumph Motorcycles website.