Pass rate over time
The DUKE's first-time pass rate has fallen 4.1 points since 2006, 80.6% to 76.5%.
Pass rate by mileage
A low-mileage DUKE passes first time 83.8% of the time; by 20k that's 71.8%.
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 DUKE
| Component group | Share of defects | Defects | % of defects | vs all bikes |
|---|---|---|---|---|
| lighting and signalling |
|
115 | 27.1 | 1.2× |
| lamps and reflectors |
|
81 | 19.1 | 1.7× |
| brakes |
|
68 | 16 | 0.8× |
| steering and suspension |
|
37 | 8.7 | 0.6× |
| tyres and wheels |
|
25 | 5.9 | 0.8× |
| structure and attachments |
|
24 | 5.6 | 1.5× |
| drive system |
|
19 | 4.5 | 1.2× |
| suspension |
|
19 | 4.5 | 1.4× |
| steering |
|
19 | 4.5 | 1.9× |
| reg plates and vin |
|
18 | 4.2 | 1.4× |
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
On first-time pass rate the DUKE beats 1 of its 4 closest rivals (HONDA CB500, TRIUMPH STREET TRIPLE, HONDA CB600 HORNET).
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 DUKE.
Pass rate by registration year
Best year to buy used: 2008 (93.8% pass). Weakest: 1998 (68.9%).
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 DUKE FAQ
Is the KTM DUKE reliable?
The KTM DUKE is less reliable than average for its class: 79.7% of its 1,619 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #3647 of 5426 models.
What does a DUKE fail its MOT on most?
lighting and signalling — 27% of all defects recorded against failed DUKE tests.
What is the best year of DUKE to buy used?
By first-time pass rate, 2008-registered examples do best (93.8%) and 1998 worst (68.9%). Condition and history still trump the year.
How many miles will a DUKE last?
The median DUKE shows 10,208 miles at test, and examples around 20k miles still pass 71.8% of the time — mileage alone rarely kills one.