Data as of: DVSA MOT results to 2025
Lambretta SX: MOT pass rate by registration year
Which SX years pass first time, and which fall short of the model's 88.7% average, from 1,580 DVSA tests.
Pass rate by registration year
Highest pass rate: 1980 (91.3% of 69 tests). Lowest: 1966 (86.3% of 322). Years more than two points below the model average: 1966.
| Registered | Tests | First-time pass | vs model (88.7%) |
|---|---|---|---|
| 1966 | 322 | 86.3% | -2.4 pp |
| 1967 | 390 | 89.5% | +0.8 pp |
| 1968 | 383 | 90.1% | +1.4 pp |
| 1969 | 85 | 88.2% | -0.5 pp |
| 1980 | 69 | 91.3% | +2.6 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 SX years have the lowest MOT pass rate?
- 1966 registered examples pass first time less often than the Lambretta SX overall (88.7%); the 1966 cohort is lowest at 86.3% from 322 tests.
- Which SX year has the highest MOT pass rate?
- 1980, at 91.3% of 69 first tests (2005–2025).
- How much does the SX pass rate vary by year?
- 5.0 percentage points between the highest (1980, 91.3%) and lowest (1966, 86.3%) 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: Lambretta SX reliability, failures and mileage · ranked #1370 of 5428 models· other Lambretta models: LI125, GP200, LI150, GP150, GP125, Li