No best-year comparison available yet
UK cars need 3 years before their first MOT, so there isn't enough test history yet to compare model years reliably for the 990 Duke 24. We'll have a proper best-year ranking once more vehicles come through for their first tests.
In the meantime, the Ktm 990 best-year guide covers older models with full histories:
Which year Ktm 990 Duke 24 is most reliable?
Based on 281 vehicles (2024–2025) and millions of DVLA MOT records.
How is this measured?
What "pass rate" means
The percentage of all MOT tests that resulted in a pass — counted across a car's whole life, not just its first test. Higher means fewer failures over time.
Mileage groups built from real data
We split this model's real-world mileage history into 5 equal groups — so each slice contains the same number of cars, not an arbitrary round number like "0–30,000 miles."
Does age still matter?
Yes. A low-mileage 20-year-old car has still had 20 years of weather, perishing rubber, and ageing electrics. Comparing at the same mileage narrows the gap between old and new — but doesn't erase it entirely.
Why this beats surveys
Our figures come from the DVLA's national MOT database — over 50 million real test results from accredited garages, with no opinions involved. Most reliability guides are based on owner surveys with a few hundred responses per model.