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Naked Motorcycles

2021Triumph Bonneville T100

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The 2021 Triumph Bonneville T100 is a versatile 900cc naked bike suited to riders seeking classic styling with modern performance. Its liquid-cooled parallel-twin engine delivers accessible power and torque, making it equally at home for commuting, weekend rides, or casual touring. Known for its retro aesthetics combined with contemporary electronics and fuel injection, it appeals to both purists and practical riders.

Capacity: 900.0 ccm
Engine: Parallel Twin, four-stroke
Gearbox: 5-speed
Dry weight: 213.0 kg
Seat height: 790 mm
Power: 64.1 HP (46.8 kW) @ 7400 RPM

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

What’s new for the 2021 Triumph Bonneville T100

vs the 2020

Spec	2020	2021
Power	55.0 HP (40.1 kW) @ 5900 RPM	64.1 HP (46.8 kW) @ 7400 RPM
Torque	80.0 Nm (8.2 kgf-m or 59.0 ft.lbs) @ 3230 RPM	80.0 Nm (8.2 kgf-m or 59.0 ft.lbs) @ 3750 RPM
Front suspension	KYB 41mm forks	41mm cartridge forks
Rear suspension	KYB chromed spring 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.
Compression	10.6:1	11.0:1

Other years 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 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%

Cornering65%

City riding72%

Daily riding75%

Touring55%

Two-up55%

Track25%

Best for: Built primarily as a classic-styled roadster for relaxed commuting, weekend rides, and casual cruising rather than outright performance.
Built for: Offers a timeless, retro British roadster feel with smooth, torquey power delivery and easygoing, confidence-inspiring manners.
Not ideal for: Not the right choice for riders seeking aggressive sportbike speed, track-day performance, or 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?

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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 T100, 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: 900.0 ccm
Power: 64.1 HP (46.8 kW) @ 7400 RPM
CO2 Emissions: 89 CO2 g/km
Torque: 80.0 Nm (8.2 kgf-m) @ 3750 RPM
Engine type: Parallel Twin, four-stroke
Fuel consumption: 3.80 litres/100 km (26.3 km/l)
Power/weight ratio: 0.3009 HP/kg (dry)
Bore x stroke: 84.6 x 80.0 mm
Compression: 11.0:1
Cooling system: Liquid
Fuel system: Injection
Starting: Electric
Ignition: Digital-inductive type via engine management system
Valves per cylinder: 4
Lubrication system: Wet sump

Transmission

Gearbox: 5-speed
Transmission type: Manual
Final drive: Chain
Clutch: Wet, multi-plate assist clutch

Dimensions & weight

Wheelbase: 1450 mm
Overall length: 2230 mm
Overall width: 715 mm
Overall height: 1100 mm
Seat height: 790 mm
Dry weight: 213.0 kg
Wet weight: 228.2 kg
Fuel capacity: 14.50 litres
Oil capacity: 4.50 litres

Chassis & suspension

Frame: Tubular steel twin cradle. Twin-sided, tubular steel swing arm.
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: 104 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: Jet black, Carnival Red/Fusion White, Fusion White/Lucern Blue
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	2004	2010	2015	2021	2026
Capacity	790 cc	865 cc	865 cc	900 cc	900 cc
Dry weight	205 kg	205 kg	205 kg	213 kg	—
Seat height	775 mm	775 mm	775 mm	790 mm	790 mm
Fuel capacity	16 L	16 L	15.9 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 T100 is a stunning motorcycle that offers a perfect blend of classic design and modern performance. Its iconic look harkens back to the golden age of motorcycling, with its timeless lines and vintage-inspired details. The T100 is powered by a smooth and responsive 900cc parallel-twin engine, delivering strong and reliable performance on the road. With its comfortable riding position and agile handling, this bike is perfect for both city commuting and long weekend rides.

In addition to its beautiful aesthetics, the 2021 Triumph Bonneville T100 is also packed with advanced technology features. It comes equipped with ride-by-wire throttle for precise control, as well as ABS braking for added safety on the road. The T100 also offers a range of accessories to customize the bike to your personal style. Whether you're a seasoned rider or a novice looking for a classic ride, the Triumph Bonneville T100 is a motorcycle that delivers on both style and performance.

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