Triumph Bonneville T100
Real ownership data from 19,889 UK Bonneville T100 motorcycles — mileage, MOT pass rates and the faults that actually come up, taken from DVSA test records rather than opinion.
Most common Bonneville T100 problems
Ranked by how often each fault appears in this model's MOT history.
| Fault | Severity | Share of faults |
|---|---|---|
| Brakes | fail | 1.7% |
| Tyres | major | 1.6% |
| Exhaust and emissions | major | 1.2% |
| Brake discs and pads | major | 1% |
| Chain and sprockets | dangerous | 0.7% |
| Steering and head bearings | dangerous | 0.7% |
| Other | dangerous | 0.5% |
| Electrical | major | 0.4% |
Advisories (wear noted but not failed) are excluded above; the most common is wheels.
Bonneville T100 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 |
|---|---|---|---|---|
| 2026 | 136 | — | — | — |
| 2025 | 195 | — | — | — |
| 2024 | 222 | — | — | — |
| 2023 | 196 | 3,333 mi | — | 96.88% |
| 2022 | 174 | 3,958 mi | 820 | 93.07% |
| 2021 | 322 | 5,090 mi | 872 | 93.25% |
| 2020 | 519 | 5,774 mi | 833 | 92.55% |
| 2019 | 703 | 6,540 mi | 763 | 92.58% |
| 2018 | 1,026 | 7,735 mi | 800 | 91.55% |
| 2017 | 1,106 | 8,796 mi | 777 | 91.54% |
| 2016 | 1,662 | 8,369 mi | 665 | 90.39% |
| 2015 | 1,666 | 7,696 mi | 603 | 89.53% |
| 2014 | 1,451 | 8,311 mi | 618 | 89.77% |
| 2013 | 1,070 | 9,618 mi | 623 | 90.44% |
| 2012 | 1,142 | 9,440 mi | 566 | 90.61% |
| 2011 | 1,008 | 11,368 mi | 687 | 88.97% |
| 2010 | 1,164 | 11,171 mi | 664 | 89.93% |
| 2009 | 1,203 | 12,387 mi | 693 | 89.52% |
| 2008 | 909 | 11,198 mi | 592 | 88.41% |
| 2007 | 990 | 11,832 mi | 650 | 88.05% |
Bonneville T100 questions, answered with data
What are the most common problems with the Triumph Bonneville T100?
Across 19,889 UK examples, the most frequently recorded MOT faults are brakes (1.7% of all recorded faults), tyres (1.6% of all recorded faults), exhaust and emissions (1.2% of all recorded faults).
What is average mileage for a Triumph Bonneville T100?
The median Triumph Bonneville T100 in the UK has covered 9,200 miles, and typically rides about 634 miles a year. Half of all examples fall between 4,913 and 15,858 miles.
Is the Triumph Bonneville T100 reliable?
89.73% of Triumph Bonneville T100 MOT tests are passed first time, with an average of 0.43 faults recorded per test. This is measured from DVSA MOT records, not owner opinion.
Based on DVSA MOT test records for 19,889 Triumph Bonneville T100 motorcycles registered in Great Britain and Northern Ireland. Contains public sector information licensed under the Open Government Licence v3.0.