Naked Motorcycles

2018Triumph Bonneville T120 Black

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The 2018 Triumph Bonneville T120 Black is a retro-styled middleweight cruiser that appeals to riders seeking classic aesthetics with modern reliability. Known for its air-cooled parallel-twin engine and commanding presence, it delivers a nimble, manageable riding experience complemented by quality engineering and a 24-month warranty.

Capacity: 1200.0 ccm
Engine: Parallel Twin twin, four-stroke
Gearbox: 6-speed
Dry weight: 224.0 kg
Seat height: 790 mm
Power: 80.0 HP (58.4 kW) @ 6550 RPM

⇄ Compare with another bike All model years ⚠ Recalls listed (2)

What’s new for the 2018 Triumph Bonneville T120 Black

vs the 2017

Spec	2017	2018
Engine capacity	—	1200.0 ccm (73.23 cubic inches)
Power	80.00 HP (58.4 kW) @ 6550 RPM	80.0 HP (58.4 kW) @ 6550 RPM
Torque	105.00 Nm (10.7 kgf-m or 77.4 ft.lbs) @ 3100 RPM	105.0 Nm (10.7 kgf-m or 77.4 ft.lbs) @ 3100 RPM
Seat height	785 mm (30.9 inches)	790 mm (31.1 inches)
Fuel capacity	12.87 litres (3.40 gallons)	12.90 litres (3.41 US gallons)
Wheelbase	1,445 mm (56.9 inches)	1445 mm (56.9 inches)

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%

Cornering50%

City riding60%

Daily riding72%

Touring63%

Two-up65%

Track15%

Best for: Built as a classic-styled roadster for relaxed cruising, weekend rides, and everyday commuting rather than outright performance.
Built for: Delivers a torquey, characterful parallel-twin experience with classic British styling and modern underpinnings for smooth, unhurried riding.
Not ideal for: Not the right choice for riders seeking sharp sportbike handling, high-speed thrills, or any serious 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?

Worked out in your browser - nothing is sent to us

Your height

Inseam (optional)

Units

At 790mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2018 Triumph Bonneville T120 Black, 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 →

Find bikes that fit your height →

Full specifications

Engine

Capacity: 1200.0 ccm
Power: 80.0 HP (58.4 kW) @ 6550 RPM
CO2 Emissions: 104 CO2 g/km
Torque: 105.0 Nm (10.7 kgf-m) @ 3100 RPM
Engine type: Parallel Twin twin, four-stroke
Fuel consumption: 4.50 litres/100 km (22.2 km/l)
Power/weight ratio: 0.3571 HP/kg
Bore x stroke: 97.6 x 80.0 mm
Compression: 10.0:1
Cooling system: Air
Fuel system: Injection
Starting: Electric
Valves per cylinder: 4

Transmission

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

Dimensions & weight

Wheelbase: 1445 mm
Overall length: 2230 mm
Overall width: 785 mm
Overall height: 1125 mm
Seat height: 790 mm
Dry weight: 224.0 kg
Wet weight: 224.0 kg
Fuel capacity: 12.90 litres
Oil capacity: 4.50 litres

Chassis & suspension

Frame: Tubular steel cradle. Twin-sided, tubular steel swing arm.
Front suspension: Kayaba 41mm cartidge forks,
Rear suspension: Kayaba twin shocks with adjustable preload,
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. Nissin 2-piston floating caliper
Front brakes diameter: 310 mm
Rear brakes: Single disc. ABS. Nissin 2-piston floating caliper
Rear brakes diameter: 255 mm
Front tyre: 100/90-18
Rear tyre: 150/80-R17

Other

Color options: Jet Black, Matt Graphite
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	2018	2019	2021	2024	2026
Capacity	1200.00 ccm (73.22 cubic inches)	—	1200.0 ccm (73.22 cubic inches)	1200.0 ccm (73.22 cubic inches)	1200.0 ccm (73.22 cubic inches)	—
Dry weight	—	224.0 kg (493.8 pounds)	224.0 kg (493.8 pounds)	—	—	—
Seat height	785 mm (30.9 inches)	790 mm (31.1 inches)	790 mm (31.1 inches)	790 mm (31.1 inches)	790 mm (31.1 inches)	27.2 - 27.6 in (690 - 700 mm)
Fuel capacity	14.50 litres (3.83 gallons)	12.87 litres (3.40 gallons)	14.50 litres (3.83 US gallons)	14.50 litres (3.83 US gallons)	14.50 litres (3.83 US gallons)	3.7 gal (14 liters)
Color options	Black	Jet Black, Matt Graphite	Jet Black, Matt Jet Black	Jet Black	Jet Black	—

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

Safety Recalls

⚠ 2 open recalls

ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATORFeb 2026 · 26V078000

Triumph Motorcycles America, Ltd. is recalling certain 2022-2024 Bonneville T100, Bonneville T120, Bonneville T120 Black, 2024 Bonneville T120 DGR, 2022 Street Twin, Street Scrambler, Street Twin Goldline, Street Scrambler Sandstor, 2023-2024 Speed Twin 900, and Scrambler 900 motorcycles. The wiring between the alternator and main harness connector may short circuit and overheat.

Risk: Overheated wiring increases the risk of a crash or fire.

Remedy: Dealers will replace the current 2-piece connector body with a single in-line crimped connector solution for each of the three wires from the alternator assembly, free of charge. Owner notification letters were mailed March 19, 2026. Owners may contact Triumph customer service at 1-678-854-2010. Triumph's number for this recall is SRAN 641. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov February 18, 2026. Motorcycles included in this recall that were previously repaired under recall 24V785 will need to have the new remedy performed.

ELECTRICAL SYSTEM:WIRING:CONNECTORS/PLUGS/RECEPTACLESOct 2024 · 24V785000

Triumph Motorcycles America, Ltd. (Triumph) is recalling certain 2022-2024 Bonneville T100, T120, T120 Black, 2022 Triumph Street Scrambler, Street Scrambler Sandstorm, Street Twin, Street Twin Goldline, 2023-2024 Scrambler 900, and Speed Twin 900 motorcycles. The wiring between the alternator and main harness connector may short circuit and overheat.

Risk: Overheated wiring increases the risk of a fire or crash.

Remedy: Dealers will install a new wire alignment clip, free of charge. Owner notification letters were mailed November 18, 2024. Owners may contact Triumph customer service at 1-678-854-2010. Triumph's number for this recall is SRAN 627.

Source: NHTSA. View all Triumph recalls →

Rider Reviews

4.0

★★★★☆

3 ratings

MotorcycleDB Review

The 2018 Triumph Bonneville T120 Black is a stunning and powerful motorcycle that offers both classic style and modern performance. With its sleek black design and iconic silhouette, this bike is sure to turn heads on the road. The T120 Black is equipped with a 1200cc high-torque engine that delivers impressive power and smooth acceleration, making it a joy to ride. The riding experience is also enhanced by advanced technology features such as traction control and ABS brakes, ensuring a safe and enjoyable journey for riders.

One of the standout features of the 2018 Triumph Bonneville T120 Black is its timeless design, which pays homage to the classic Bonneville bikes of the past while incorporating modern engineering and technology. The blacked-out color scheme gives the bike a sleek and stylish look that is sure to appeal to riders with a taste for classic aesthetics with a contemporary twist. With its powerful engine and advanced safety features, the T120 Black is a top choice for motorcycle enthusiasts looking for a combination of style and performance.