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2021Triumph Bonneville T120

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The 2021 Triumph Bonneville T120 is a modern classic that appeals to riders seeking timeless styling with contemporary performance and reliability. Its liquid-cooled 1200cc parallel-twin engine delivers smooth, characterful power ideal for both commuting and weekend riding. Best known for authentic retro design combined with fuel injection technology, it bridges vintage aesthetics with modern engineering.

Capacity: 1200.0 ccm
Engine: Parallel Twin, four-stroke
Gearbox: 6-speed
Dry weight: 224.0 kg
Seat height: 790 mm
Power: 79.1 HP (57.8 kW) @ 6550 RPM

⇄ Compare with another bike ＋ Add to garage All model years

What’s new for the 2021 Triumph Bonneville T120

vs the 2020

Spec	2020	2021
Torque	105.0 Nm (10.7 kgf-m or 77.4 ft.lbs) @ 3100 RPM	105.0 Nm (10.7 kgf-m or 77.4 ft.lbs) @ 3500 RPM
Dry weight	—	224.0 kg (493.8 pounds)
Wet weight	224.0 kg (493.8 pounds)	235.9 kg (520.1 pounds)
Front suspension	Kyb 41mm cartidge forks,	41mm cartridge forks
Rear suspension	Kyb twin shocks with adjustable preload,	Twin RSU’s, with pre-load adjustment
Front brakes	Single disc. ABS. Nissin 2-piston floating caliper	Single disc. ABS. Brembo 2-piston floating caliper

Other years 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail15%

Cornering55%

City riding65%

Daily riding78%

Touring68%

Two-up70%

Track20%

Best for: Built for relaxed classic-styled riding, everyday commuting, and light touring rather than outright performance.
Built for: A charming, torque-rich retro roadster that prioritizes classic looks, easy manners, and relaxed cruising over sharp sportiness.
Not ideal for: Not suited for riders seeking sportbike-level speed, aggressive cornering ability, or any off-road capability.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

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Your height

Inseam (optional)

Units

At 790mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2021 Triumph Bonneville T120, with a relaxed knee angle of around 120 degrees and a forward-leaning riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at 751-820 mm — Middle Ground →

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Range and running costs

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Units

Currency

Fuel per litre

Riding a year

Based on the maker's published fuel consumption and tank size. Real-world figures depend on how and where you ride, and the last litres of a tank are reserve. Prices shown greyed are examples - type your own.

Full specifications

Engine

Capacity: 1200.0 ccm
Power: 79.1 HP (57.8 kW) @ 6550 RPM
CO2 Emissions: 104 CO2 g/km
Torque: 105.0 Nm (10.7 kgf-m) @ 3500 RPM
Engine type: Parallel Twin, four-stroke
Fuel consumption: 4.50 litres/100 km (22.2 km/l)
Power/weight ratio: 0.3531 HP/kg (dry)
Bore x stroke: 97.6 x 80.0 mm
Compression: 10.0:1
Cooling system: Liquid
Fuel system: Injection
Starting: Electric
Ignition: Digital-inductive type via engine management system
Valves per cylinder: 4

Transmission

Gearbox: 6-speed
Transmission type: Manual
Final drive: Chain
Clutch: Wet, multi-plate, assist clutch

Dimensions & weight

Wheelbase: 1450 mm
Overall length: 2230 mm
Overall width: 785 mm
Overall height: 1100 mm
Seat height: 790 mm
Dry weight: 224.0 kg
Wet weight: 235.9 kg
Fuel capacity: 14.50 litres
Oil capacity: 4.50 litres

Chassis & suspension

Frame: Tubular steel, with twin cradles
Front suspension: 41mm cartridge forks
Rear suspension: Twin RSU’s, with pre-load adjustment
Front wheel travel: 120 mm
Rear wheel travel: 120 mm
Rake (fork angle): 25.5°
Trail: 105 mm

Brakes & wheels

Front brakes: Single disc. ABS. Brembo 2-piston floating caliper
Front brakes diameter: 310 mm
Rear brakes: Single disc. ABS. Nissin 2-piston floating caliper
ABS: Yes
Front tyre: 100/90-18
Rear tyre: 150/70-R17

Other

Color options: Cardovan Red/Silver Ice, Cobalt Blue/Silver Ice, Jet Black
Warranty: 24

Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.

What changed, year to year

Differences highlighted

Specification	2016	2019	2021	2024	2026
Capacity	1200 cc	1200 cc	1200 cc	1200 cc	1200 cc
Dry weight	—	—	224 kg	224 kg	224 kg
Seat height	785 mm	790 mm	790 mm	790 mm	790 mm
Fuel capacity	14.5 L	14.5 L	14.5 L	14.5 L	14.5 L

Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.

Rider Reviews

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MotorcycleDB

The 2021 Triumph Bonneville T120 motorcycle is a classic and stylish bike that offers a smooth and powerful ride. It features a 1200cc parallel-twin engine that delivers ample torque and a responsive throttle. The comfortable seat and upright riding position make it an ideal choice for long rides, while the modern technology, including ABS and traction control, provides added safety and confidence on the road. With its iconic design and high-quality construction, the Triumph Bonneville T120 is a standout choice for riders looking for a timeless and reliable motorcycle.

Overall, the 2021 Triumph Bonneville T120 motorcycle is a top-notch option for those seeking a blend of classic style and modern performance. From its impressive 1200cc engine to its advanced safety features, this bike offers a compelling combination of power, comfort, and technology. Whether cruising through city streets or hitting the open road, the Triumph Bonneville T120 is sure to impress riders with its smooth handling and timeless aesthetic.

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