KTM 125 Duke
Real ownership data from 8,035 UK 125 Duke motorcycles — mileage, MOT pass rates and the faults that actually come up, taken from DVSA test records rather than opinion.
Most common 125 Duke problems
Ranked by how often each fault appears in this model's MOT history.
| Fault | Severity | Share of faults |
|---|---|---|
| Controls and cables | dangerous | 10.7% |
| Exhaust and emissions | dangerous | 8.4% |
| Chain and sprockets | major | 6.5% |
| Brakes | dangerous | 6.5% |
| Other | user entered | 5.7% |
| Electrical | fail | 5.4% |
| Lights and indicators | major | 4.6% |
| Wheels | fail | 2.7% |
Advisories (wear noted but not failed) are excluded above; the most common is chain and sprockets.
125 Duke mileage and reliability by year
Use this to judge whether a specific bike is high or low mileage for its age.
| YearYear | MedianMedian mileage | Mi/yrMiles/year | MOT passFirst-time pass | |
|---|---|---|---|---|
| 2026 | 261 | — | — | — |
| 2025 | 542 | 2,108 mi | 4,574 | 75% |
| 2024 | 778 | 2,737 mi | 350 | 60% |
| 2023 | 850 | 5,940 mi | 1,706 | 70.51% |
| 2022 | 877 | 7,560 mi | 2,050 | 75.84% |
| 2021 | 931 | 8,406 mi | 1,862 | 74.56% |
| 2020 | 804 | 9,194 mi | 1,836 | 75.82% |
| 2019 | 859 | 10,902 mi | 1,809 | 75.13% |
| 2018 | 743 | 11,376 mi | 1,728 | 76.06% |
| 2017 | 454 | 11,704 mi | 1,802 | 77.16% |
| 2016 | 122 | 20,424 mi | 1,766 | 64.52% |
| 2015 | 97 | 9,810 mi | 1,873 | 78.57% |
| 2014 | 112 | 12,442 mi | 1,780 | 71.15% |
| 2013 | 83 | 10,396 mi | 1,342 | 73.33% |
| 2012 | 263 | 15,460 mi | 1,654 | 66.7% |
| 2011 | 259 | 13,229 mi | 1,492 | 68.95% |
125 Duke questions, answered with data
What are the most common problems with the KTM 125 Duke?
Across 8,035 UK examples, the most frequently recorded MOT faults are controls and cables (10.7% of all recorded faults), exhaust and emissions (8.4% of all recorded faults), chain and sprockets (6.5% of all recorded faults).
What is average mileage for a KTM 125 Duke?
The median KTM 125 Duke in the UK has covered 9,614 miles, and typically rides about 1,806 miles a year. Half of all examples fall between 5,346 and 15,147 miles.
Is the KTM 125 Duke reliable?
74.23% of KTM 125 Duke MOT tests are passed first time, with an average of 0.02 faults recorded per test. This is measured from DVSA MOT records, not owner opinion.
Based on DVSA MOT test records for 8,035 KTM 125 Duke motorcycles registered in Great Britain and Northern Ireland. Contains public sector information licensed under the Open Government Licence v3.0.