Data as of: DVSA MOT results to 2025
Norton Commando 850: MOT pass rate by registration year
Which Commando 850 years pass first time, and which fall short of the model's 91.5% average, from 816 DVSA tests.
Pass rate by registration year
Highest pass rate: 1977 (97.1% of 70 tests). Lowest: 1974 (88.6% of 158). Years more than two points below the model average: 1974.
| Registered | Tests | First-time pass | vs model (91.5%) |
|---|---|---|---|
| 1971 | 111 | 91.0% | -0.5 pp |
| 1973 | 122 | 91.0% | -0.5 pp |
| 1974 | 158 | 88.6% | -2.9 pp |
| 1975 | 191 | 90.1% | -1.4 pp |
| 1976 | 98 | 93.9% | +2.4 pp |
| 1977 | 70 | 97.1% | +5.6 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 Commando 850 years have the lowest MOT pass rate?
- 1974 registered examples pass first time less often than the Norton Commando 850 overall (91.5%); the 1974 cohort is lowest at 88.6% from 158 tests.
- Which Commando 850 year has the highest MOT pass rate?
- 1977, at 97.1% of 70 first tests (2005–2025). Years more than two points above the model average: 1976, 1977.
- How much does the Commando 850 pass rate vary by year?
- 8.5 percentage points between the highest (1977, 97.1%) and lowest (1974, 88.6%) 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: Norton Commando 850 reliability, failures and mileage · ranked #567 of 5428 models· other Norton models: Commando, Dominator, ES2, Commander, Triton, Atlas