KTM 125 Duke
Real ownership data from 8,000 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 |
|---|---|---|
| Steering and head bearings | fail | 22.7% |
| Controls and cables | dangerous | 8.3% |
| Exhaust and emissions | dangerous | 6.6% |
| Brakes | major | 5% |
| Tyres | user entered | 4.2% |
| Other | user entered | 4.2% |
| Electrical | fail | 3.9% |
| Chain and sprockets | user entered | 3.6% |
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 | 236 | — | — | — |
| 2025 | 539 | 2,108 mi | 4,574 | 75% |
| 2024 | 776 | 4,822 mi | 350 | 71.43% |
| 2023 | 850 | 5,917 mi | 1,329 | 70.36% |
| 2022 | 875 | 7,363 mi | 2,082 | 75.34% |
| 2021 | 931 | 8,168 mi | 1,864 | 74.78% |
| 2020 | 802 | 9,008 mi | 1,833 | 75.67% |
| 2019 | 858 | 10,902 mi | 1,811 | 74.88% |
| 2018 | 742 | 11,196 mi | 1,745 | 75.99% |
| 2017 | 454 | 11,321 mi | 1,764 | 77.11% |
| 2016 | 122 | 19,808 mi | 2,716 | 62.96% |
| 2015 | 97 | 9,810 mi | 1,873 | 78.57% |
| 2014 | 113 | 12,442 mi | 1,780 | 71.15% |
| 2013 | 83 | 10,396 mi | 1,342 | 73.33% |
| 2012 | 263 | 15,460 mi | 1,654 | 66.76% |
| 2011 | 259 | 13,229 mi | 1,492 | 68.83% |
125 Duke questions, answered with data
What are the most common problems with the KTM 125 Duke?
Across 8,000 UK examples, the most frequently recorded MOT faults are steering and head bearings (22.7% of all recorded faults), controls and cables (8.3% of all recorded faults), exhaust and emissions (6.6% of all recorded faults).
What is average mileage for a KTM 125 Duke?
The median KTM 125 Duke in the UK has covered 9,532 miles, and typically rides about 1,804 miles a year. Half of all examples fall between 5,287 and 15,105 miles.
Is the KTM 125 Duke reliable?
74.12% 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 8,000 KTM 125 Duke motorcycles registered in Great Britain and Northern Ireland. Contains public sector information licensed under the Open Government Licence v3.0.