BIKERELIABILITY Reg check
League table/ BSA/ A10/By year
Registration-year report · 2005–2025

Data as of: DVSA MOT results to 2025

Bsa A10: MOT pass rate by registration year

Which A10 years pass first time, and which fall short of the model's 91.6% average, from 10,227 DVSA tests.

1961
highest-passing year · 93.6%
1950
lowest-passing year · 88.0%
5.6pp
spread across 15 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: 1961 (93.6% of 2,205 tests). Lowest: 1950 (88.0% of 92). Years more than two points below the model average: 1950, 1953, 1958, 1971.

87%91%95%1950: 88.0% pass (92 tests)1951: 92.2% pass (51 tests)1952: 90.1% pass (171 tests)1953: 89.1% pass (256 tests)1954: 90.0% pass (361 tests)1955: 91.3% pass (415 tests)1956: 90.8% pass (272 tests)1957: 91.5% pass (449 tests)1958: 89.2% pass (641 tests)1959: 91.7% pass (1,327 tests)1960: 92.4% pass (2,196 tests)1961: 93.6% pass (2,205 tests)1962: 89.7% pass (728 tests)1963: 91.2% pass (251 tests)1971: 88.7% pass (533 tests)195019571971
RegisteredTestsFirst-time passvs model (91.6%)
1950 92 88.0% -3.6 pp
1951 51 92.2% +0.6 pp
1952 171 90.1% -1.5 pp
1953 256 89.1% -2.5 pp
1954 361 90.0% -1.6 pp
1955 415 91.3% -0.3 pp
1956 272 90.8% -0.8 pp
1957 449 91.5% -0.1 pp
1958 641 89.2% -2.4 pp
1959 1,327 91.7% +0.1 pp
1960 2,196 92.4% +0.8 pp
1961 2,205 93.6% +2.0 pp
1962 728 89.7% -1.9 pp
1963 251 91.2% -0.4 pp
1971 533 88.7% -2.9 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 · 2005–2022
85%92%100%2005: 87.4% pass (230 tests)2006: 93.0% pass (1,046 tests)2007: 90.9% pass (996 tests)2008: 90.9% pass (1,003 tests)2009: 91.2% pass (1,009 tests)2010: 91.0% pass (973 tests)2011: 90.3% pass (1,059 tests)2012: 91.7% pass (918 tests)2013: 92.7% pass (591 tests)2014: 91.0% pass (577 tests)2015: 93.8% pass (529 tests)2016: 92.7% pass (479 tests)2017: 93.6% pass (452 tests)2018: 91.3% pass (149 tests)2019: 90.2% pass (61 tests)2020: 97.4% pass (38 tests)2021: 91.4% pass (35 tests)2022: 87.1% pass (31 tests)20052022

Questions

Which A10 years have the lowest MOT pass rate?
1950, 1953, 1958, 1971 registered examples pass first time less often than the Bsa A10 overall (91.6%); the 1950 cohort is lowest at 88.0% from 92 tests.
Which A10 year has the highest MOT pass rate?
1961, at 93.6% of 2,205 first tests (2005–2025).
How much does the A10 pass rate vary by year?
5.6 percentage points between the highest (1961, 93.6%) and lowest (1950, 88.0%) 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 A10 reliability, failures and mileage · ranked #546 of 5428 models· other Bsa models: Bantam, C15, A65, B31, B40, A7