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KTM

390 Duke

2nd gen (2017-2023)· 2017-2023 naked

Before you buy

2 known problems
Learner legal
LAMSYes, every version sold here is LAMS approved.
Watch for
medium
TFT dashboard water ingress
Any · $800-1200
Running cost
Valve check every 15,000kmunverified · $4.5k–$7.5k used est. Aug 2026
All 2 problems ↓ At-the-bike checklist →

Recalls

1 on record
REC-000810 21 Jun 2017
Defect: The current Head Light Control Unit (HLU) software may cause the LED headlight to reboot while in operation.
Hazard: If the headlight control unit reboots, headlight operation may be affected, as it may go off and on without warning, potentially causing dangerous riding situations for the rider and other road users.
Remedy: Contact an authorised KTM dealer to arrange an appointment for inspection; the software version of the Headlight Unit and Instrument cluster will be updated free of charge.
Official notice: vehiclerecalls.gov.au · details checked 30 Sep 2026

Ask the seller for proof the recall work was done; a dealer can check by VIN. Search any bike at vehiclerecalls.gov.au.

Price (AUD)
$4.5k–$7.5kest. Aug 2026
Type
Naked
Origin
Austria
Built in
India

Overview

The second-generation 390 Duke introduced aggressive styling inspired by the Super Duke 1290, a full-colour TFT dash, and ride-by-wire throttle. It is a fantastic handling, punchy single-cylinder bike that thrives on tight, twisty roads. While reliability improved massively over the first generation, it still requires more attentive maintenance than its Japanese rivals.

Engines & variants

373cc Single (LAMS)LAMS approved

Under the limits as standard. Due to its extremely light weight, it sits close to the 150kW/tonne LAMS ceiling but requires no restrictions.

Config
Single
Capacity
373cc
Power
32kW @ 9000rpm
Torque
37Nm @ 7000rpm
Seat height
830mm
Weight
163kg wet (149kg dry)
Final drive
Chain
Cooling
Liquid
ABS
Standard
Traction control
None
0–100
~5.5sunverified
Fuel
13.4L
Economy
3.5 L/100km
Service
7,500km / 12 months
Transmission
6-speed
Valve clearance interval
15,000kmunverified
Timing chain / belt / gear
Chain-driven

Pros

  • Punchy, exciting engine character
  • Sharp, responsive chassis and WP suspension
  • Premium tech for the class (TFT display, LED lighting)

Cons

  • Shorter service intervals than Japanese competitors
  • Can run hot in stop-and-go traffic
  • Tall 830mm seat height for shorter learners

Known problems

medium
TFT dashboard water ingress
The TFT dashboard on early 2nd-gen models is poorly sealed. Water from heavy rain or aggressive washing can enter the unit, causing condensation, screen blanking, or complete failure.
Fix: Many were replaced under warranty. If out of warranty, replacements are expensive; check for condensation spots before buying.
Any · ~$800-1200
low
Engine stalling
The ride-by-wire system and lean factory tuning can occasionally cause the bike to stall abruptly when pulling the clutch in at low speeds.
Fix: Usually resolved by ensuring the ECU software is fully updated at a KTM dealer.
Any

unverified marks a figure we could not confirm against a manufacturer source. It is our best reading of what is published, not a checked fact — confirm it yourself before you spend money on the strength of it.

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LAMS bikes under $8k →Lightweight LAMS bikes →LAMS naked bikes → All LAMS lists →