Data as of: DVSA MOT results to 2025
Triumph Bonneville T120: MOT pass rate by registration year
Which Bonneville T120 years pass first time, and which fall short of the model's 92.1% average, from 724 DVSA tests.
Pass rate by registration year
Highest pass rate: 1970 (96.6% of 58 tests). Lowest: 2021 (89.7% of 272). Years more than two points below the model average: 2021.
| Registered | Tests | First-time pass | vs model (92.1%) |
|---|---|---|---|
| 1970 | 58 | 96.6% | +4.5 pp |
| 2021 | 272 | 89.7% | -2.4 pp |
| 2022 | 223 | 95.5% | +3.4 pp |
Older cohorts are survivors: the worst examples have already left the road, which tends to lift the earliest years. A first-time MOT pass is a roadworthiness check, not a full mechanical inspection.
Pass rate over time
Questions
- Which Bonneville T120 years have the lowest MOT pass rate?
- 2021 registered examples pass first time less often than the Triumph Bonneville T120 overall (92.1%); the 2021 cohort is lowest at 89.7% from 272 tests.
- Which Bonneville T120 year has the highest MOT pass rate?
- 1970, at 96.6% of 58 first tests (2005–2025). Years more than two points above the model average: 1970, 2022.
- How much does the Bonneville T120 pass rate vary by year?
- 6.9 percentage points between the highest (1970, 96.6%) and lowest (2021, 89.7%) cohorts with at least 50 tests. Older cohorts are survivors: the worst examples have already left the road, which tends to lift the earliest years.
Full report: Triumph Bonneville T120 reliability, failures and mileage · ranked #455 of 5428 models· other Triumph models: Bonneville, Tiger, Sprint, Daytona, Speed Triple, Thunderbird