Honda CB125S: MOT pass rate by registration year

Which CB125S years pass first time, and which fall short of the model's 77.5% average, from 622 DVSA tests.

1975

highest-passing year · 83.1%

1973

lowest-passing year · 74.2%

8.9pp

spread across 3 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: 1975 (83.1% of 231 tests). Lowest: 1973 (74.2% of 66). Years more than two points below the model average: 1973.

Registered	Tests	First-time pass	vs model (77.5%)
1971	187	76.5%	-1.0 pp
1973	66	74.2%	-3.3 pp
1975	231	83.1%	+5.6 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

Questions

Which CB125S years have the lowest MOT pass rate?: 1973 registered examples pass first time less often than the Honda CB125S overall (77.5%); the 1973 cohort is lowest at 74.2% from 66 tests.
Which CB125S year has the highest MOT pass rate?: 1975, at 83.1% of 231 first tests (2005–2025).
How much does the CB125S pass rate vary by year?: 8.9 percentage points between the highest (1975, 83.1%) and lowest (1973, 74.2%) 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: Honda CB125S reliability, failures and mileage · ranked #3977 of 5428 models· other Honda models: CBR600F, CBR900RR, CBR1100XX, CB500, C90, VFR800 Fi