Data as of: DVSA MOT results to 2025
Triumph 3TA: MOT pass rate by registration year
Which 3TA years pass first time, and which fall short of the model's 91.3% average, from 3,243 DVSA tests.
Pass rate by registration year
Highest pass rate: 1961 (94.2% of 462 tests). Lowest: 1971 (87.4% of 199). Years more than two points below the model average: 1957, 1958, 1971.
| Registered | Tests | First-time pass | vs model (91.3%) |
|---|---|---|---|
| 1957 | 71 | 88.7% | -2.6 pp |
| 1958 | 186 | 88.2% | -3.1 pp |
| 1959 | 227 | 90.3% | -1.0 pp |
| 1960 | 358 | 92.5% | +1.2 pp |
| 1961 | 462 | 94.2% | +2.9 pp |
| 1962 | 339 | 91.4% | +0.1 pp |
| 1963 | 307 | 89.3% | -2.0 pp |
| 1964 | 270 | 92.6% | +1.3 pp |
| 1965 | 206 | 93.2% | +1.9 pp |
| 1966 | 399 | 91.2% | -0.1 pp |
| 1967 | 160 | 93.1% | +1.8 pp |
| 1971 | 199 | 87.4% | -3.9 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 3TA years have the lowest MOT pass rate?
- 1957, 1958, 1971 registered examples pass first time less often than the Triumph 3TA overall (91.3%); the 1971 cohort is lowest at 87.4% from 199 tests.
- Which 3TA year has the highest MOT pass rate?
- 1961, at 94.2% of 462 first tests (2005–2025).
- How much does the 3TA pass rate vary by year?
- 6.8 percentage points between the highest (1961, 94.2%) and lowest (1971, 87.4%) 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 3TA reliability, failures and mileage · ranked #619 of 5428 models· other Triumph models: Bonneville, Tiger, Sprint, Daytona, Speed Triple, Thunderbird