# Triumph Trident 660 — Full Specifications 2026

> Complete technical specifications for the Triumph Trident 660.

Source: https://indianautoforum.com/bikes/triumph/trident-660/specifications

The Triumph Trident 660 is powered by a 660cc liquid-cooled inline-three cylinder engine - the same basic architecture that underpins the Street Triple and Tiger Sport 660, tuned here for accessible everyday performance rather than outright aggression. It produces 80 bhp at 10,250 rpm and 64 Nm of peak torque at 6,250 rpm, figures that put it ahead of the Kawasaki Z650's parallel-twin while keeping the power delivery manageable for newer riders.

The engine is paired with a six-speed gearbox and an assist and slipper clutch, with a bi-directional quickshifter now standard on the 2025 model - a feature that transforms everyday riding by allowing clutchless upshifts and downshifts at speed. Three riding modes - Road, Rain, and Sport - adjust throttle response and traction control sensitivity. Sport mode, newly added for 2025, sharpens the throttle response noticeably and is best kept for open roads or track days.

On the chassis side, the Trident 660 uses 41mm Showa SFF (Separate Function Front Fork) upside-down units - upgraded to Showa Big Piston specification on the 2025 model - which offer better damping feedback than the conventional forks on the Kawasaki Z650. The rear is handled by a Showa monoshock with preload adjustment. Ground clearance is 150 mm, which is adequate for most city riding but worth watching on particularly scarred roads.

Braking is via 310mm dual front discs with four-piston calipers and a 255mm single rear disc, controlled by dual-channel cornering ABS. The factory-fit Michelin Road 5 tyres on 17-inch alloy wheels are genuinely high-quality rubber - most owners keep them through the first set without feeling the need to upgrade. Kerb weight stands at 189 kg and the 805 mm seat height means most riders of 5'5" and above can manage the bike confidently. Fuel tank capacity is 14 litres, giving a theoretical range of around 210 km at ARAI's rated 15 kmpl - real-world riders report 17-20 kmpl in mixed conditions.

## Brakes & Wheels
| Spec | Value |
|------|-------|
| Braking System | Dual Channel ABS |
| Front Brake | Disc, 310 mm, 4 piston caliper |
| Rear Brake | Disc, 255 mm, 1 piston caliper |
| Tyre Pressure (Rider & Pillion) | Front - 34 psi, Rear - 42 psi |
| Tyre Pressure (Rider Only) | Front - 34 psi, Rear - 42 psi |
| Tyre Size | Front - 120/70 - R17, Rear - 180/55 - R17 |
| Tyre Type | Tubeless |
| Wheel Size | Front - 17 inch, Rear - 17 inch |
| Wheel Type | Alloy |

## Dimensions
| Spec | Value |
|------|-------|
| Fuel Tank Capacity | 14 litres |
| Ground Clearance | 150 mm |
| Kerb Weight | 189 kg |
| Overall Dimensions (LxWxH) | 2020 mm x 790 mm x 1080 mm |
| Reserve Fuel Capacity | 2.1 litres |
| Seat Height | 805 mm |
| Wheelbase | 1407 mm |

## Power & Performance
| Spec | Value |
|------|-------|
| Battery | 12 Volt, 8 Ah |
| Bore x Stroke | 74 mm x 51.1 mm |
| Clutch | Assist And Slipper Clutch |
| Compression Ratio | 11.95:1 |
| Displacement | 660 cc |
| Emission Standard | BS6 Phase 2B |
| Engine Type | 3 Cylinder, Liquid Cooled, 4 Valves |
| Fuel Type | Petrol |
| Gear Shifting Pattern | 1 Down 5 Up |
| Max Power | 80 bhp @ 10250 rpm |
| Max Torque | 64 Nm @ 6250 rpm |
| Mileage - ARAI | 15 kmpl |
| Riding Modes | Sport, Road and Rain |
| Riding Range | 210 km |
| Spark Plugs | 1 Per Cylinder |
| Top Speed | 212 kmph |
| Transmission | 6 Speed Manual |
| Transmission Type | Chain Drive |

## Suspensions & Chassis
| Spec | Value |
|------|-------|
| Chassis Type | Tubular steel perimeter frame |
| Front Suspension | Showa 41mm upside down separate function forks (SFF) |
| Front Suspension Preload Adjuster | No |
| Rear Suspension | Showa monoshock RSU, with preload adjustment |
| Rear Suspension Preload Adjuster | Yes |

## Warranty and Services
| Spec | Value |
|------|-------|
| No. of Free Services | No |
| Vehicle Warranty | Unlimited km or 2 years |

The ARAI-certified mileage of 15 kmpl is on the lower side for a middleweight, but real-world results of 17-20 kmpl are more representative of how the bike actually performs in Indian traffic. The 14-litre tank means you'll want to fill up every 250-280 km on a long trip. Compared to the Honda CB750 Hornet and Kawasaki Z650, the Trident 660's triple-cylinder layout gives it a broader, more linear powerband - there's no sudden surge that catches newer riders off guard. The 660cc displacement hits a useful sweet spot: small enough to be manageable at low speeds and in traffic, large enough to feel genuinely confident on highways and mountain passes.

## FAQs

**What is the engine displacement of the Triumph Trident 660?**
The Triumph Trident 660 is powered by a 660cc liquid-cooled inline-three cylinder, four-valve engine producing 80 bhp at 10,250 rpm and 64 Nm of peak torque at 6,250 rpm, paired with a six-speed gearbox, assist and slipper clutch, and a bi-directional quickshifter standard on the 2025 model.

**What is the fuel efficiency of the Triumph Trident 660?**
The ARAI-certified mileage is 15 kmpl. In real-world mixed riding - city commuting combined with occasional highway stretches - most Indian owners report 17-20 kmpl, giving the 14-litre tank a practical range of 240-280 km between fill-ups.

**What are the dimensions and kerb weight of the Triumph Trident 660?**
The Triumph Trident 660 has a kerb weight of 189 kg, seat height of 805 mm, and ground clearance of 150 mm. Its overall dimensions are 2,020 mm long × 790 mm wide × 1,080 mm tall, with a 1,407 mm wheelbase - compact for city use but stable at highway speeds.

**Does the Triumph Trident 660 get ABS?**
Yes, the Triumph Trident 660 comes with dual-channel cornering ABS as standard across all variants. The cornering ABS works in conjunction with traction control and adjusts its intervention based on the selected riding mode - Rain mode applies the most conservative settings, Sport mode allows slightly more lean before intervening.

**What suspension setup does the Triumph Trident 660 use?**
The Triumph Trident 660 uses 41mm Showa Big Piston SFF (Separate Function Front Fork) upside-down forks at the front - upgraded on the 2025 model for improved damping and road feedback. The rear uses a Showa monoshock with preload adjustment.

## More
- [Overview](/bikes/triumph/trident-660)
- [Variants & Prices](/bikes/triumph/trident-660/variants)
- [Price in India](/bikes/triumph/trident-660/price)