The Moto Ref
Triumphnaked

Speed 400

398.2 cc / 40 hp / 170 kg / 2025

Triumph Speed 400 2025

Big-brand feel at the cheapest price in the class.

48.7/ 100

Scored within naked, methodology here

€5,745

list price

power
40 hp
wet weight
170 kg
tank range
371 km

The short version

The Speed 400 undercuts everything with a badge on it and still feels premium: quality paint, a torquey 398 cc single and 16,000 km service intervals. It trades outright pace and electronics for polish and running costs, which is exactly what many A2 buyers want.

Where it wins

  • Cheapest route into the A2 naked class from a major brand
  • 16,000 km service intervals halve scheduled maintenance visits
  • Accessible 790 mm seat and friendly power delivery

Where it loses

  • 40 hp trails the KTM and Husqvarna singles
  • No TFT, ride modes or quickshifter at any price

Score breakdown

Engine and performance

7.7 / 25

Handling and chassis

6.9 / 20

Value

16.7 / 20

Practicality

7.0 / 15

Technology

3.3 / 10

Reliability and ownership

7.1 / 10
Advertisement320 x 100

Full specs

Full specifications: Triumph Speed 400
Engine
EngineSingle cylinder, liquid cooled, DOHC
Displacement398.2 cc
Power40 hp at 8,000 rpm
Torque37.5 Nm at 6,500 rpm
Power to weight0.24 hp/kg
Chassis
Wet weight170 kg
Front suspension43 mm big piston fork, 140 mm
Front adjustabilityNon-adjustable
Rear suspensionMonoshock, 130 mm
Rear adjustabilityPreload only
Front brake300 mm, radial 4-piston
ABSStandard ABS
Dimensions
Seat height790 mm
Wheelbase1377 mm
Fuel capacity13 L
Claimed consumption3.5 L/100 km
Fuel range371 km
Ownership
Price€5,745
Service interval16,000 km
Valve check32,000 km
Warranty2 years
Equipment
DashLCD
Ride modesNo
Traction controlYes
QuickshifterNot available
Cruise controlNot available
ConnectivityNo
Full maintenance guide: schedule, intervals and costs

Compare the Speed 400

Parts and upgrades for the Speed 400

Upgrades owners actually fit, at typical retail prices. Shop links are affiliate links: buying through them supports the site and costs you nothing extra.

Triumph Genuine

Protection

Aluminium Sump Guard

Shields the low-slung exhaust collector from speed bump strikes.

€140typical price

Triumph Genuine

Styling

Bar-End Mirrors

The single most transformative cosmetic part on this bike.

€165typical price

Triumph Genuine

Styling

Flyscreen Kit

Colour-matched nose cowl that finishes the roadster look.

€120typical price