30 June. Tuesday 2026
Trident 660 - 2025 Specifications and Reviews
The 2025 Triumph Trident 660 is a lightweight naked bike perfect for new riders and commuters seeking an accessible entry point into motorcycling. Its 81-horsepower inline-triple engine delivers engaging character and smooth power delivery, while the agile handling and manageable ergonomics make it equally suited for urban riding and spirited weekend excursions. Known for combining classic British styling with modern reliability and value.
2025
General information | |
| Color Options | Cosmic Yellow/ Sapphire Black, Cobalt Blue/ Sapphire Black, Jet Black, Diablo Red/ Sapphire Black |
| Price | US$ 8595. MSRP depends on country, taxes, accessories, etc. |
| Category | Naked bike |
| Model | Triumph Trident 660 |
Engine and Transmission Specifications | |
| Starting | Electric |
| Emission | 124.8 CO2 g/km. (CO2 - Carbon dioxide emission) |
| Fuel Consumption | 5.38 litres/100 km (18.6 km/l or 43.72 mpg) |
| Clutch | Wet, multi-plate, slip and assist |
| Final Drive | Chain (final drive) |
| Gearbox | 6-speed |
| Cooling System | Liquid |
| Fuel Control | Double Overhead Cams/Twin Cam (DOHC) |
| Induction | Injection. Multipoint sequential electronic fuel injection with electronic throttle control |
| Valves Per Cylinder | 4 |
| Bore x Stroke | 74.0 x 51.1 mm (2.9 x 2.0 inches) |
| Compression Ratio | 12.0:1 |
| Max Torque | 63.7 Nm (6.5 kgf-m or 47.0 ft.lbs) @ 6250 RPM |
| Engine Type | In-line three, four-stroke |
| Capacity | 660.0 ccm (40.27 cubic inches) |
Physical measures and capacities | |
| Fuel Capacity | 14.00 litres (3.70 US gallons) |
| Wheelbase | 1401 mm (55.2 inches) |
| Overall Width | 795 mm (31.3 inches) |
| Overall Length | 2020 mm (79.5 inches) |
| Overall Height | 1089 mm (42.9 inches) |
| Seat Height | 805 mm (31.7 inches) If adjustable, lowest setting. |
| Power/Weight Ratio | 0.4262 HP/kg |
| Dry Weight | 190.1 kg (419.0 pounds) |
| | |
Trident 660 dimensions and frame | |
| Wheels | Cast aluminium |
| Rear Brakes | Single disc. ABS. Single-piston caliper, Nissin |
| Brake Disc Diameter | 255 mm (10.0 inches) |
| Front Brakes | Double disc. ABS. Two-piston calipers, Nissin |
| Rear Tyre | 180/55-R17 |
| Front Tyre | 120/70-R17 |
| Rear Wheel Travel | 134 mm (5.3 inches) |
| Rear Suspension | Showa monoshock RSU. with preload adjustment |
| Front Wheel Travel | 120 mm (4.7 inches) |
| Front Suspension | Showa 41mm upside down separate function forks (SFF) |
| Trail | 107 mm (4.2 inches) |
| Frame | Tubular steel perimeter. Twin-sided, fabricated steel swingarm. |
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Other specs | |
| Related bikes | List related bikes for comparison of specs. |
| Ask questions | Join the 25 Triumph Trident 660 discussion group or the general Triumph discussion group. |
| Maintenance | Find parts, fluids. filters, maintenance tools and service manuals at Amazon.com. |
| Insurance costs | Compare US insurance quotes from the nation's top providers. |
| Service interval | 10,000 miles/16,000 km/12 months |
| Update specs | Report missing specs or required updates. |
| Lighting | All-LED lighting |
| Instruments | Multi-function instruments with colour TFT screen |
| Rake (fork angle) | 24.6° |
| Exhaust system | Stainless steel 3 into 1 header system with low single sided stainless steel silencer |
| Driveline | X-ring chain |
| Output | 81.0 HP (59.1 kW)) @ 10250 RPM |
| Year of manufacture | 2025 |
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