Naked Motorcycles
2021Triumph Trident 660
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The 2021 Triumph Trident 660 is a modern naked bike designed for new and returning riders seeking an accessible entry point into middleweight motorcycling. Its 660cc triple-cylinder engine delivers 81 horsepower with linear power delivery and manageable ergonomics, making it ideal for everyday commuting and weekend rides. Known for combining classic Triumph styling with contemporary technology and affordability, the Trident appeals to riders prioritizing practicality and character over extreme performance.
- Capacity
- 660.0 ccm
- Engine
- In-line three-cylinder, four-stroke
- Gearbox
- 6-speed
- Dry weight
- 189.0 kg
- Seat height
- 805 mm
- Power
- 81.0 HP (59.1 kW) @ 10250 RPM
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Designed as a versatile everyday roadster that excels at commuting, weekend blasts, and learning to ride briskly rather than as a dedicated track or long-distance tool.
- Built for
- The 660cc triple delivers a smooth, torquey, and vocal power delivery that feels lively without being intimidating.
- Not ideal for
- Not the ideal choice for riders wanting serious off-road capability, high-speed track dominance, or dedicated two-up long-haul touring comfort.
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 usEngine
- Capacity
- 660.0 ccm
- Power
- 81.0 HP (59.1 kW) @ 10250 RPM
- Torque
- 63.7 Nm (6.5 kgf-m) @ 6250 RPM
- Engine type
- In-line three-cylinder, four-stroke
- Power/weight ratio
- 0.4286 HP/kg (dry)
- Bore x stroke
- 74.0 x 51.1 mm
- Compression
- 12.0:1
- Cooling system
- Liquid
- Fuel system
- Injection
- Starting
- Electric
- Valves per cylinder
- 4
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Wet. multi-plate. slip and assist
Dimensions & weight
- Wheelbase
- 1401 mm
- Overall length
- 2020 mm
- Overall width
- 795 mm
- Overall height
- 1089 mm
- Seat height
- 805 mm
- Dry weight
- 189.0 kg
- Wet weight
- 195.0 kg
- Fuel capacity
- 14.00 litres
Chassis & suspension
- Frame
- Tubular steel perimeter
- Front suspension
- Showa 41mm upside down separate function forks (SFF)
- Rear suspension
- Showa monoshock RSU. with preload adjustment
- Front wheel travel
- 120 mm
- Rear wheel travel
- 134 mm
- Rake (fork angle)
- 24.6°
- Trail
- 107 mm
Brakes & wheels
- Front brakes
- Double disc. ABS. Two-piston calipers.
- Front brakes diameter
- 310 mm
- Rear brakes
- Single disc. ABS. Single-piston caliper.
- ABS
- Yes
- Front tyre
- 120/70-R17
- Rear tyre
- 180/55-R17
Other
- Color options
- Crystal white, Sapphire black, Matt Jet Black/Silver Ice, Silver Ice/Diablo Red
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 | 2021 | 2022 | 2024 | 2025 | 2026 |
|---|---|---|---|---|---|
| Capacity | 660 cc | 660 cc | 660 cc | 660 cc | 660 cc |
| Dry weight | 189 kg | 189 kg | 189 kg | — | 190 kg |
| Seat height | 805 mm | 805 mm | 805 mm | 805 mm | 810 mm |
| Fuel capacity | 14 L | 14 L | 14 L | 14 L | 14 L |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Rider Reviews
Common questions
What is the engine size of the Triumph Trident 660?
The 2021 Triumph Trident 660 has a Capacity of 660.0 ccm (40.28 cubic inches).
What engine power does the Triumph Trident 660 have?
The 2021 Triumph Trident 660 has a Power of 81.0 HP (59.1 kW) @ 10250 RPM.
How many gears does the Triumph Trident 660 have?
The 2021 Triumph Trident 660 has a Gearbox of 6-speed.
What is the torque of the Triumph Trident 660?
The 2021 Triumph Trident 660 has a Torque of 63.7 Nm (6.5 kgf-m or 47.0 ft.lbs) @ 6250 RPM.
How much does the Triumph Trident 660 weigh?
The 2021 Triumph Trident 660 has a Dry weight of 189.0 kg (416.7 pounds).
Shop this bike
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The 2021 Triumph Trident 660 is a sleek and powerful motorcycle that brings modern technology and classic styling together in a perfect blend. With its 660cc engine, it delivers impressive performance while remaining easy to handle for riders of all experience levels. The bike's agile handling and comfortable riding position make it an ideal choice for both daily commuting and long weekend rides. In addition, the Trident 660 comes equipped with advanced features such as ABS, traction control, and customizable riding modes, providing a safe and thrilling experience on the road.
Overall, the 2021 Triumph Trident 660 is a top-notch motorcycle that offers a fantastic combination of style, performance, and technology. Whether you're a seasoned rider or a beginner, this bike is sure to impress with its smooth power delivery and refined handling. With its attractive design and advanced features, the Trident 660 is a great choice for those looking for a reliable and exciting ride.
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