Data as of: DVSA MOT results to 2025
Triumph 5TA: MOT pass rate by registration year
Which 5TA years pass first time, and which fall short of the model's 91.2% average, from 1,439 DVSA tests.
Pass rate by registration year
Highest pass rate: 1966 (96.3% of 134 tests). Lowest: 1971 (81.5% of 65). Years more than two points below the model average: 1959, 1961, 1971.
| Registered | Tests | First-time pass | vs model (91.2%) |
|---|---|---|---|
| 1959 | 209 | 86.6% | -4.6 pp |
| 1960 | 275 | 92.7% | +1.5 pp |
| 1961 | 164 | 89.0% | -2.2 pp |
| 1962 | 146 | 92.5% | +1.3 pp |
| 1963 | 86 | 93.0% | +1.8 pp |
| 1964 | 84 | 91.7% | +0.5 pp |
| 1965 | 101 | 90.1% | -1.1 pp |
| 1966 | 134 | 96.3% | +5.1 pp |
| 1971 | 65 | 81.5% | -9.7 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 5TA years have the lowest MOT pass rate?
- 1959, 1961, 1971 registered examples pass first time less often than the Triumph 5TA overall (91.2%); the 1971 cohort is lowest at 81.5% from 65 tests.
- Which 5TA year has the highest MOT pass rate?
- 1966, at 96.3% of 134 first tests (2005–2025).
- How much does the 5TA pass rate vary by year?
- 14.8 percentage points between the highest (1966, 96.3%) and lowest (1971, 81.5%) 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 5TA reliability, failures and mileage · ranked #645 of 5428 models· other Triumph models: Bonneville, Tiger, Sprint, Daytona, Speed Triple, Thunderbird