BIKERELIABILITY Reg check
League table/ BSA/ A50/By year
Registration-year report · 2005–2025

Data as of: DVSA MOT results to 2025

Bsa A50: MOT pass rate by registration year

Which A50 years pass first time, and which fall short of the model's 89.6% average, from 1,282 DVSA tests.

1967
highest-passing year · 94.9%
1965
lowest-passing year · 85.6%
9.3pp
spread across 9 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: 1967 (94.9% of 99 tests). Lowest: 1965 (85.6% of 202). Years more than two points below the model average: 1965, 1969.

84%90%97%1962: 91.5% pass (141 tests)1963: 87.9% pass (124 tests)1964: 92.0% pass (199 tests)1965: 85.6% pass (202 tests)1966: 88.6% pass (123 tests)1967: 94.9% pass (99 tests)1968: 93.6% pass (94 tests)1969: 86.8% pass (129 tests)1970: 91.1% pass (101 tests)196219661970
RegisteredTestsFirst-time passvs model (89.6%)
1962 141 91.5% +1.9 pp
1963 124 87.9% -1.7 pp
1964 199 92.0% +2.4 pp
1965 202 85.6% -4.0 pp
1966 123 88.6% -1.0 pp
1967 99 94.9% +5.3 pp
1968 94 93.6% +4.0 pp
1969 129 86.8% -2.8 pp
1970 101 91.1% +1.5 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 · 2006–2017
80%89%97%2006: 94.0% pass (100 tests)2007: 83.0% pass (94 tests)2008: 88.7% pass (97 tests)2009: 91.7% pass (96 tests)2010: 89.1% pass (101 tests)2011: 88.9% pass (99 tests)2012: 89.1% pass (110 tests)2013: 88.4% pass (112 tests)2014: 90.0% pass (110 tests)2015: 91.2% pass (102 tests)2016: 93.4% pass (106 tests)2017: 86.0% pass (86 tests)20062017

Questions

Which A50 years have the lowest MOT pass rate?
1965, 1969 registered examples pass first time less often than the Bsa A50 overall (89.6%); the 1965 cohort is lowest at 85.6% from 202 tests.
Which A50 year has the highest MOT pass rate?
1967, at 94.9% of 99 first tests (2005–2025). Years more than two points above the model average: 1964, 1967, 1968.
How much does the A50 pass rate vary by year?
9.3 percentage points between the highest (1967, 94.9%) and lowest (1965, 85.6%) 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: Bsa A50 reliability, failures and mileage · ranked #1077 of 5428 models· other Bsa models: A10, Bantam, C15, A65, B31, B40