KTM 390 DUKE 20

373cc Petrol Class 2

#1883 of 5426 overall #59 of 230 KTMs #82 of 205 naked bikes

87.1%

first-time pass rate

4.6%

failed outright

3,547

median miles at test

371

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2023–2025

The 390 DUKE 20's first-time pass rate has risen 2.8 points since 2023, 85.1% to 87.9%.

What fails on a 390 DUKE 20

failure defects by component group · advisories excluded

Component group	Defects	% of defects
lamps and reflectors	9	33.3
structure and attachments	5	18.5
brakes	4	14.8
suspension	4	14.8
tyres	4	14.8
steering	1	3.7

Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects.

How rivals compare

same type, similar capacity, high test volume

On first-time pass rate the 390 DUKE 20 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 20.

Pass rate by registration year

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

Best year to buy used: 2020 (87.3% pass). Weakest: 2021 (86.1%).

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.