Bsa Rocket 3: MOT pass rate by registration year

Which Rocket 3 years pass first time, and which fall short of the model's 93.4% average, from 973 DVSA tests.

1972

highest-passing year · 96.1%

1970

lowest-passing year · 90.8%

5.3pp

spread across 4 years

Pass rate by registration year

first-time pass rate · cohorts with 50 or more tests · registration year from first use date

Highest pass rate: 1972 (96.1% of 77 tests). Lowest: 1970 (90.8% of 120). Years more than two points below the model average: 1970.

Registered	Tests	First-time pass	vs model (93.4%)
1969	379	93.9%	+0.5 pp
1970	120	90.8%	-2.6 pp
1971	316	93.7%	+0.3 pp
1972	77	96.1%	+2.7 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

first-time pass rate by test year · 2006–2018

Questions

Which Rocket 3 years have the lowest MOT pass rate?: 1970 registered examples pass first time less often than the Bsa Rocket 3 overall (93.4%); the 1970 cohort is lowest at 90.8% from 120 tests.
Which Rocket 3 year has the highest MOT pass rate?: 1972, at 96.1% of 77 first tests (2005–2025).
How much does the Rocket 3 pass rate vary by year?: 5.3 percentage points between the highest (1972, 96.1%) and lowest (1970, 90.8%) 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 Rocket 3 reliability, failures and mileage · ranked #245 of 5428 models· other Bsa models: A10, Bantam, C15, A65, B31, B40