Data as of: DVSA MOT results to 2025
Bsa B40: MOT pass rate by registration year
Which B40 years pass first time, and which fall short of the model's 90.6% average, from 3,360 DVSA tests.
Pass rate by registration year
Highest pass rate: 1969 (95.7% of 139 tests). Lowest: 1968 (85.7% of 175). Years more than two points below the model average: 1962, 1968, 1971.
| Registered | Tests | First-time pass | vs model (90.6%) |
|---|---|---|---|
| 1960 | 71 | 88.7% | -1.9 pp |
| 1961 | 633 | 90.5% | -0.1 pp |
| 1962 | 257 | 87.9% | -2.7 pp |
| 1963 | 102 | 92.2% | +1.6 pp |
| 1964 | 205 | 91.7% | +1.1 pp |
| 1965 | 586 | 89.8% | -0.8 pp |
| 1966 | 54 | 90.7% | +0.1 pp |
| 1967 | 768 | 91.7% | +1.1 pp |
| 1968 | 175 | 85.7% | -4.9 pp |
| 1969 | 139 | 95.7% | +5.1 pp |
| 1970 | 142 | 92.3% | +1.7 pp |
| 1971 | 92 | 87.0% | -3.6 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 B40 years have the lowest MOT pass rate?
- 1962, 1968, 1971 registered examples pass first time less often than the Bsa B40 overall (90.6%); the 1968 cohort is lowest at 85.7% from 175 tests.
- Which B40 year has the highest MOT pass rate?
- 1969, at 95.7% of 139 first tests (2005–2025).
- How much does the B40 pass rate vary by year?
- 10.0 percentage points between the highest (1969, 95.7%) and lowest (1968, 85.7%) 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: Bsa B40 reliability, failures and mileage · ranked #776 of 5428 models· other Bsa models: A10, Bantam, C15, A65, B31, A7