# Triumph Speed 400 — Full Specifications 2026

> Complete technical specifications for the Triumph Speed 400.

Source: https://indianautoforum.com/bikes/triumph/speed-400/specifications

The Triumph Speed 400 is powered by a 349cc liquid-cooled, DOHC, 4-valve single-cylinder engine producing 37 PS at 8,500 rpm and 32 Nm of torque at 7,000 rpm. It's mated to a 6-speed gearbox with a torque-assist slipper clutch. Fuel delivery is through Bosch EFI with ride-by-wire throttle control - a feature you'd expect on bikes costing twice as much.

The chassis is a hybrid spine and perimeter tubular steel frame with a bolt-on rear subframe. Suspension up front is a 43mm upside-down big-piston fork with 130mm travel - properly premium hardware. The rear gets a pre-load adjustable gas monoshock with 120mm travel. Both ends are tuned on the softer side for Indian road conditions, and the compromise works well in city traffic and on national highways alike.

Braking is handled by a 300mm fixed disc with a four-piston radial caliper up front and a 230mm disc with a single-piston floating caliper at the rear. Bosch dual-channel ABS is standard and non-switchable. The 17-inch alloy wheels run 110/80 and 150/70 tubeless tyres.

At 179 kg kerb weight, the Speed 400 is noticeably lighter than air-cooled rivals like the Royal Enfield Classic 350 (195 kg). The 803mm seat height is on the taller side - a consideration for shorter riders, though the slim seat and light weight make it more manageable than the number suggests. Fuel tank capacity is 13 litres, giving a claimed range of around 364 km. ARAI mileage is rated at 30 kmpl; real-world figures of 27-30 kmpl are consistently reported by owners.

## Brakes & Wheels
| Spec | Value |
|------|-------|
| Braking System | Dual Channel ABS |
| Front Brake | Disc, 300 mm, 4 piston caliper |
| Rear Brake | Disc, 230 mm, 1 piston caliper |
| Tyre Size | Front - 110/80 - 17, Rear - 150/70 - 17 |
| Tyre Type | Tubeless |
| Wheel Size | Front - 17 inch, Rear - 17 inch |
| Wheel Type | Alloy |

## Dimensions
| Spec | Value |
|------|-------|
| Fuel Tank Capacity | 13 litres |
| Ground Clearance | 164 mm |
| Kerb Weight | 179 kg |
| Overall Dimensions (LxWxH) | - x 829 mm x 1096 mm |
| Seat Height | 803 mm |
| Wheelbase | 1396 mm |

## Power & Performance
| Spec | Value |
|------|-------|
| Bore x Stroke | 89 mm x 56.1 mm |
| Clutch | Assist And Slipper Clutch |
| Displacement | 349 cc |
| Emission Standard | BS6 Phase 2B |
| Engine Type | 4 Valves |
| Fuel Type | Petrol |
| Gear Shifting Pattern | 1 Down 5 Up |
| Max Power | 36.49 bhp @ 8500 rpm |
| Max Torque | 32 Nm @ 7000 rpm |
| Mileage - Owner Reported | 28.5 kmpl |
| Riding Range | 370.5 km |
| Top Speed | 147 kmph |
| Transmission | 6 Speed Manual |
| Transmission Type | Chain Drive |

## Suspensions & Chassis
| Spec | Value |
|------|-------|
| Chassis Type | Hybrid spine/perimeter, tubular steel, bolt-on rear subframe |
| Front Suspension | 43mm Upside down Big Piston forks. 130mm wheel travel |
| Rear Suspension | Gas monoshock RSU with external reservoir and pre-load adjustment. 120mm wheel travel |
| Rear Suspension Preload Adjuster | Yes |

## Warranty and Services
| Spec | Value |
|------|-------|

Electronics include switchable traction control, all-LED lighting with DRL, a dual-format instrument cluster (analogue + digital LCD), USB charging port, and an anti-theft immobiliser. The service interval of 16,000 km (or 12 months) is a standout ownership advantage - most rivals in this segment require service every 5,000-6,000 km. The 2-year unlimited-mileage warranty adds further peace of mind. Note that the Indian-market Speed 400 uses a 349cc engine (down from the original 398cc) in compliance with GST norms; international models make 40 PS from 398cc.

## FAQs

**What is the engine displacement of the Triumph Speed 400?**
The Indian-market Triumph Speed 400 uses a 349cc liquid-cooled, DOHC, 4-valve single-cylinder engine producing 37 PS at 8,500 rpm and 32 Nm at 7,000 rpm. This replaced the original 398cc (40 PS) unit in April 2026 to align with India's GST benefit threshold for sub-350cc motorcycles.

**What is the fuel efficiency of the Triumph Speed 400?**
The Triumph Speed 400 has an ARAI-certified mileage of 30 kmpl. Real-world city mileage is around 25-27 kmpl and highway mileage is 29-32 kmpl based on consistent owner reports. The 13-litre tank gives a practical range of 350-390 km between fill-ups.

**What are the kerb weight and seat height of the Triumph Speed 400?**
The Triumph Speed 400 weighs 179 kg kerb - significantly lighter than the Royal Enfield Classic 350's 195 kg. Seat height is 803 mm, which is on the taller side. Ground clearance is 164 mm, and overall wheelbase is 1,386 mm.

**Does the Triumph Speed 400 have ABS?**
Yes, the Triumph Speed 400 comes standard with Bosch dual-channel ABS on both wheels, and it is non-switchable. It also gets switchable traction control as standard - a feature rarely seen at this price point in India.

**What suspension does the Triumph Speed 400 use?**
The Speed 400 runs 43mm upside-down (USD) big-piston forks with 130mm travel up front - a premium setup normally found on bikes costing Rs 4-5 lakh. The rear uses a pre-load adjustable gas monoshock with 120mm travel. Both ends are softly tuned for Indian road conditions.

## More
- [Overview](/bikes/triumph/speed-400)
- [Variants & Prices](/bikes/triumph/speed-400/variants)
- [Price in India](/bikes/triumph/speed-400/price)