Triumph Bonneville Bobber
Real ownership data from 1,781 UK Bonneville Bobber motorcycles — mileage, MOT pass rates and the faults that actually come up, taken from DVSA test records rather than opinion.
Most common Bonneville Bobber problems
Ranked by how often each fault appears in this model's MOT history.
| Fault | Severity | Share of faults |
|---|---|---|
| Lights and indicators | dangerous | 8.8% |
| Electrical | prs | 7.5% |
| Other | major | 7.5% |
| Brakes | dangerous | 7.5% |
| Tyres | dangerous | 6.3% |
| Chain and sprockets | dangerous | 5% |
| Suspension | dangerous | 3.8% |
| Exhaust and emissions | major | 2.5% |
Advisories (wear noted but not failed) are excluded above; the most common is chain and sprockets.
Bonneville Bobber 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 | 203 | — | — | — |
| 2025 | 246 | — | — | — |
| 2024 | 202 | — | — | — |
| 2023 | 266 | 2,905 mi | 574 | 88.28% |
| 2022 | 346 | 3,428 mi | 745 | 87.06% |
| 2021 | 239 | 4,231 mi | 625 | 90.84% |
| 2020 | 116 | 1,925 mi | 250 | 93.82% |
| 2019 | 39 | 6,553 mi | 720 | 96.67% |
| 2018 | 46 | 5,392 mi | 537 | 87.5% |
| 2017 | 62 | 5,165 mi | 409 | 92.45% |
| 2016 | 14 | 7,056 mi | 483 | 85.29% |
Bonneville Bobber questions, answered with data
What are the most common problems with the Triumph Bonneville Bobber?
Across 1,781 UK examples, the most frequently recorded MOT faults are lights and indicators (8.8% of all recorded faults), electrical (7.5% of all recorded faults), other (7.5% of all recorded faults).
What is average mileage for a Triumph Bonneville Bobber?
The median Triumph Bonneville Bobber in the UK has covered 3,492 miles, and typically rides about 578 miles a year. Half of all examples fall between 1,902 and 5,758 miles.
Is the Triumph Bonneville Bobber reliable?
89.76% of Triumph Bonneville Bobber MOT tests are passed first time, with an average of 0.04 faults recorded per test. This is measured from DVSA MOT records, not owner opinion.
Based on DVSA MOT test records for 1,781 Triumph Bonneville Bobber motorcycles registered in Great Britain and Northern Ireland. Contains public sector information licensed under the Open Government Licence v3.0.