Harley-Davidson Dyna
Real ownership data from 5,348 UK Dyna motorcycles — mileage, MOT pass rates and the faults that actually come up, taken from DVSA test records rather than opinion.
Most common Dyna problems
Ranked by how often each fault appears in this model's MOT history.
| Fault | Severity | Share of faults |
|---|---|---|
| Other | fail | 2.6% |
| Lights and indicators | dangerous | 1.6% |
| Brake discs and pads | dangerous | 1.2% |
| Suspension | major | 0.9% |
| Tyres | dangerous | 0.8% |
| Brakes | dangerous | 0.7% |
| Steering and head bearings | dangerous | 0.7% |
| Exhaust and emissions | major | 0.7% |
Advisories (wear noted but not failed) are excluded above; the most common is lights and indicators.
Dyna mileage and reliability by year
Use this to judge whether a specific bike is high or low mileage for its age.
| Year | Examples | Median mileage | Miles/year | First-time pass |
|---|---|---|---|---|
| 2021 | 11 | 4,272 mi | 545 | 90% |
| 2020 | 47 | 3,480 mi | 393 | 89.77% |
| 2019 | 83 | 4,912 mi | 588 | 91.13% |
| 2018 | 68 | 6,165 mi | 749 | 83.15% |
| 2016 | 161 | 10,781 mi | 909 | 85.64% |
| 2015 | 147 | 11,897 mi | 930 | 87.6% |
| 2014 | 146 | 12,785 mi | 1,094 | 90.01% |
| 2013 | 7 | 6,327 mi | 552 | 81.82% |
| 2011 | 18 | 12,680 mi | 863 | 86.57% |
| 2010 | 61 | 12,091 mi | 676 | 88.95% |
| 2009 | 127 | 14,968 mi | 997 | 88.38% |
| 2008 | 119 | 14,655 mi | 837 | 91.15% |
| 2007 | 117 | 13,857 mi | 624 | 90.98% |
| 2006 | 548 | 14,732 mi | 787 | 88.6% |
| 2005 | 457 | 17,461 mi | 886 | 88.64% |
| 2004 | 444 | 17,552 mi | 870 | 89.92% |
| 2003 | 380 | 18,058 mi | 834 | 89.18% |
| 2002 | 395 | 17,870 mi | 925 | 90.48% |
| 2001 | 411 | 19,617 mi | 752 | 90.02% |
| 2000 | 376 | 21,126 mi | 762 | 89.36% |
Dyna questions, answered with data
What are the most common problems with the Harley-Davidson Dyna?
Across 5,348 UK examples, the most frequently recorded MOT faults are other (2.6% of all recorded faults), lights and indicators (1.6% of all recorded faults), brake discs and pads (1.2% of all recorded faults).
What is average mileage for a Harley-Davidson Dyna?
The median Harley-Davidson Dyna in the UK has covered 16,936 miles, and typically rides about 802 miles a year. Half of all examples fall between 8,781 and 27,927 miles.
Is the Harley-Davidson Dyna reliable?
89.28% of Harley-Davidson Dyna MOT tests are passed first time, with an average of 0.58 faults recorded per test. This is measured from DVSA MOT records, not owner opinion.
Based on DVSA MOT test records for 5,348 Harley-Davidson Dyna motorcycles registered in Great Britain and Northern Ireland. Contains public sector information licensed under the Open Government Licence v3.0.