Yamaha DT125
Real ownership data from 11,111 UK DT125 motorcycles — mileage, MOT pass rates and the faults that actually come up, taken from DVSA test records rather than opinion.
Most common DT125 problems
Ranked by how often each fault appears in this model's MOT history.
| Fault | Severity | Share of faults |
|---|---|---|
| Fuel system | user entered | 27.1% |
| Fork seals | user entered | 16% |
| Lights and indicators | major | 3.6% |
| Chain and sprockets | dangerous | 2.6% |
| Brake discs and pads | dangerous | 2.3% |
| Frame and structure | dangerous | 2% |
| Controls and cables | fail | 2% |
| Tyres | dangerous | 2% |
Advisories (wear noted but not failed) are excluded above; the most common is suspension.
DT125 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 | |
|---|---|---|---|---|
| 2021 | 17 | 14,953 mi | 260 | 75% |
| 2020 | 33 | 13,939 mi | 138 | 86.49% |
| 2019 | 42 | 14,287 mi | 417 | 82.44% |
| 2018 | 50 | 11,801 mi | 884 | 80.57% |
| 2017 | 49 | 15,243 mi | 565 | 78.17% |
| 2016 | 56 | 14,940 mi | 395 | 75.57% |
| 2015 | 27 | 18,460 mi | 1,488 | 83.7% |
| 2014 | 8 | 12,030 mi | 46 | 66.67% |
| 2013 | 11 | 19,190 mi | 227 | 84.62% |
| 2012 | 7 | 15,995 mi | 311 | 74.07% |
| 2011 | 5 | 12,046 mi | 899 | 80.77% |
| 2010 | 9 | 10,473 mi | 132 | 81.58% |
| 2009 | 12 | 13,559 mi | 1,466 | 77.27% |
| 2008 | 11 | 21,314 mi | 2,326 | 68.12% |
| 2007 | 738 | 14,479 mi | 1,276 | 69.89% |
| 2006 | 598 | 15,563 mi | 1,198 | 69.17% |
| 2005 | 863 | 15,587 mi | 1,278 | 68.7% |
| 2004 | 656 | 13,634 mi | 1,324 | 67.71% |
| 2003 | 1,241 | 14,792 mi | 1,319 | 67.19% |
| 2002 | 1,139 | 15,712 mi | 1,124 | 67.55% |
DT125 questions, answered with data
What are the most common problems with the Yamaha DT125?
Across 11,111 UK examples, the most frequently recorded MOT faults are fuel system (27.1% of all recorded faults), fork seals (16% of all recorded faults), lights and indicators (3.6% of all recorded faults).
What is average mileage for a Yamaha DT125?
The median Yamaha DT125 in the UK has covered 16,088 miles, and typically rides about 1,008 miles a year. Half of all examples fall between 9,281 and 23,995 miles.
Is the Yamaha DT125 reliable?
67.91% of Yamaha DT125 MOT tests are passed first time, with an average of 0.01 faults recorded per test. This is measured from DVSA MOT records, not owner opinion.
Based on DVSA MOT test records for 11,111 Yamaha DT125 motorcycles registered in Great Britain and Northern Ireland. Contains public sector information licensed under the Open Government Licence v3.0.