KTM 390 DUKE 17

373cc Petrol Class 2

#1910 of 5426 overall #62 of 230 KTMs #85 of 205 naked bikes

87.0%

first-time pass rate

6.5%

failed outright

4,650

median miles at test

2,885

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2020–2025

The 390 DUKE 17's first-time pass rate has fallen 7.7 points since 2020, 91.8% to 84.1%.

Pass rate by mileage

how the 390 DUKE 17's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage 390 DUKE 17 passes first time 87.8% of the time; by 20k that's 67.4%.

First-time pass rate by odometer reading at test, 10,000-mile bands for this model. Mileage is the strongest reliability signal. See the full curve.

What fails on a 390 DUKE 17

failure defects by component group · advisories excluded

Component group	Defects	% of defects	vs all bikes
lamps and reflectors	111	31.3	1.7×
brakes	80	22.5	0.5×
structure and attachments	53	14.9	2.2×
tyres	37	10.4	1.5×
Identification of the vehicle	28	7.9	4.2×
suspension	22	6.2	1.0×
steering	16	4.5	1.2×
audible warning (Horn)	4	1.1	0.8×
wheels	4	1.1	2.3×

Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects. "vs all bikes" is how often this model's tests record a defect in the group, as a multiple of the all-bike rate.

How rivals compare

same type, similar capacity, high test volume

On first-time pass rate the 390 DUKE 17 beats 2 of its 2 closest rivals (HONDA CB400, HONDA CB400N).

HONDA CB400 80.9% pass · 9,072 tests HONDA CB400N 77.5% pass · 5,366 tests

Rivals share this bike's type and sit within ±30% of its engine capacity, ≥ 5,000 tests. Card colour = better/worse first-time pass rate than the 390 DUKE 17.

Pass rate by registration year

how each model-year cohort fares · registration year from first use date

Best year to buy used: 2017 (87.4% pass). Weakest: 2018 (85.4%).

First-time pass rate by the year each bike was first registered (cohorts with ≥ 50 tests). Older cohorts are survivors: the worst examples have already left the road, which tends to lift the earliest years.

KTM 390 DUKE 17 FAQ

answers computed from the data above · terms in the glossary

Is the KTM 390 DUKE 17 reliable?

The KTM 390 DUKE 17 is more reliable than average for its class: 87.0% of its 2,885 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #1910 of 5426 models.

What does a 390 DUKE 17 fail its MOT on most?

lamps and reflectors — 31% of all defects recorded against failed 390 DUKE 17 tests.

How many miles will a 390 DUKE 17 last?

The median 390 DUKE 17 shows 4,650 miles at test, and examples around 20k miles still pass 67.4% of the time — mileage alone rarely kills one.