KTM 390 Duke 17 (2017)

726 real MOT outcomes analysed • 77.1% first-time pass rate

2017 KTM 390 Duke 17

CarHunch analysed 726 real MOT records for the 2017 KTM 390 Duke 17. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.

The 2017 KTM 390 Duke falls slightly below the UK average with a 77.1% first-time pass rate against 80%, suggesting marginally more reliability concerns than typical for its age. The good news is that dangerous defects are rare, affecting just 7% of vehicles tested, so safety-critical failures aren't a widespread problem with this model.

At just 4,569 miles median mileage, these bikes are relatively lightly used, which explains why the 0.44 average failures per vehicle is modest—though the 1.4 advisories per bike hint at minor wear items cropping up. If you're considering one, budget for routine maintenance to address those advisory items, and always request a pre-purchase inspection focusing on suspension and braking components, which typically account for the failures seen in this cohort.

Average reliability 2.9% below UK average
77.1%
pass MOT first time
UK average: ~80%
4,569
typical mileage
2,724–7,326 middle half
7%
ever had a dangerous defect
recorded at any MOT
0.44
avg MOT failures per car
over 4 tests on record

What to check before buying a 2017 KTM 390 Duke 17

Practical pre-purchase checks for this age and model.

  • 📋 Check the full MOT history. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. Enter the reg below for a full AI analysis.
  • 🔍 Inspect for corrosion in person. Brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that's expensive to fix and can fail an MOT.
  • 🛞 Check tyres and brakes. The most common advisory items at this age. Budget for replacement if they're near the limit — factor this into your offer price.
  • 📄 Run an HPI check. The MOT history won't show outstanding finance, insurance write-offs, or stolen status — an HPI check will.

Before you buy a KTM 390 Duke 17

MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.

Inspection ClickMechanic Have a qualified mechanic check this car before you commit to buying

CarHunch may earn a small commission if you buy via these links — at no extra cost to you.

Pass Rate by Fuel Type

Fuel type Vehicles Pass rate Avg failures
Petrol (99%) 718 76.9% 0.44
Other (1%) 8 94.4% 0.25

Mileage Distribution

Most 2017 KTM 390 Duke 17 vehicles sit in the blue band. If the car you're looking at is outside it, it's either unusually low or high mileage for its age.

2,724
low mileage
4,569
typical
7,326
high mileage

Half of all 2017 KTM 390 Duke 17 vehicles fall between 2,724 and 7,326 miles.

2017 KTM 390 Duke 17 — Still on the Road

Strong survival — 363 vehicles still getting MOTs in 2025, 80% of the peak.

341 363 2020 2025

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2020–2025.

MOT History Averages

4
Avg MOT tests per vehicle
0.44
Avg failures per vehicle
1.4
Avg advisories per vehicle

Found a specific KTM 390 Duke 17?

Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.

UK

Other model years — KTM 390 Duke 17:

2018