BIKERELIABILITY Reg check
Registration-year report · 2005–2025

Data as of: DVSA MOT results to 2025

Matchless G12: MOT pass rate by registration year

Which G12 years pass first time, and which fall short of the model's 92.3% average, from 1,593 DVSA tests.

1964
highest-passing year · 95.3%
1963
lowest-passing year · 89.5%
5.8pp
spread across 6 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: 1964 (95.3% of 85 tests). Lowest: 1963 (89.5% of 124). Years more than two points below the model average: 1963.

88%92%96%1959: 93.8% pass (356 tests)1960: 94.1% pass (375 tests)1961: 93.2% pass (339 tests)1962: 90.4% pass (136 tests)1963: 89.5% pass (124 tests)1964: 95.3% pass (85 tests)195919621964
RegisteredTestsFirst-time passvs model (92.3%)
1959 356 93.8% +1.5 pp
1960 375 94.1% +1.8 pp
1961 339 93.2% +0.9 pp
1962 136 90.4% -1.9 pp
1963 124 89.5% -2.8 pp
1964 85 95.3% +3.0 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
84%92%99%2006: 96.6% pass (147 tests)2007: 92.3% pass (142 tests)2008: 95.4% pass (153 tests)2009: 92.0% pass (162 tests)2010: 86.6% pass (157 tests)2011: 88.7% pass (150 tests)2012: 92.1% pass (139 tests)2013: 90.9% pass (99 tests)2014: 89.8% pass (98 tests)2015: 90.9% pass (88 tests)2016: 94.3% pass (88 tests)2017: 95.4% pass (87 tests)20062017

Questions

Which G12 years have the lowest MOT pass rate?
1963 registered examples pass first time less often than the Matchless G12 overall (92.3%); the 1963 cohort is lowest at 89.5% from 124 tests.
Which G12 year has the highest MOT pass rate?
1964, at 95.3% of 85 first tests (2005–2025).
How much does the G12 pass rate vary by year?
5.8 percentage points between the highest (1964, 95.3%) and lowest (1963, 89.5%) 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: Matchless G12 reliability, failures and mileage · ranked #415 of 5428 models· other Matchless models: G80, G3, G3LS, G3L, G9, G2