BIKERELIABILITY Reg check
League table/ AJS/ 16MS/By year
Registration-year report · 2005–2025

Data as of: DVSA MOT results to 2025

Ajs 16MS: MOT pass rate by registration year

Which 16MS years pass first time, and which fall short of the model's 91.1% average, from 1,268 DVSA tests.

1953
highest-passing year · 92.0%
1952
lowest-passing year · 82.8%
9.2pp
spread across 7 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: 1953 (92.0% of 112 tests). Lowest: 1952 (82.8% of 64). Years more than two points below the model average: 1952.

81%87%94%1952: 82.8% pass (64 tests)1953: 92.0% pass (112 tests)1954: 91.8% pass (158 tests)1955: 91.9% pass (222 tests)1956: 91.7% pass (168 tests)1957: 90.0% pass (250 tests)1958: 91.0% pass (133 tests)195219551958
RegisteredTestsFirst-time passvs model (91.1%)
1952 64 82.8% -8.3 pp
1953 112 92.0% +0.9 pp
1954 158 91.8% +0.7 pp
1955 222 91.9% +0.8 pp
1956 168 91.7% +0.6 pp
1957 250 90.0% -1.1 pp
1958 133 91.0% -0.1 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 · 2005–2012
86%90%95%2005: 88.9% pass (36 tests)2006: 93.3% pass (180 tests)2007: 91.8% pass (159 tests)2008: 91.9% pass (161 tests)2009: 92.7% pass (165 tests)2010: 88.2% pass (169 tests)2011: 87.5% pass (160 tests)2012: 91.2% pass (137 tests)20052012

Questions

Which 16MS years have the lowest MOT pass rate?
1952 registered examples pass first time less often than the Ajs 16MS overall (91.1%); the 1952 cohort is lowest at 82.8% from 64 tests.
Which 16MS year has the highest MOT pass rate?
1953, at 92.0% of 112 first tests (2005–2025).
How much does the 16MS pass rate vary by year?
9.2 percentage points between the highest (1953, 92.0%) and lowest (1952, 82.8%) 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: Ajs 16MS reliability, failures and mileage · ranked #659 of 5428 models· other Ajs models: Modena, Modena 125, DD, Firefox, DD 125 E 08, Cadwell