Chituma CTM 125-C: MOT pass rate by registration year

Which CTM 125-C years pass first time, and which fall short of the model's 59.3% average, from 744 DVSA tests.

2006

highest-passing year · 61.4%

2004

lowest-passing year · 56.7%

4.7pp

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: 2006 (61.4% of 140 tests). Lowest: 2004 (56.7% of 217). Years more than two points below the model average: 2004.

Registered	Tests	First-time pass	vs model (59.3%)
2004	217	56.7%	-2.6 pp
2005	337	60.2%	+0.9 pp
2006	140	61.4%	+2.1 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 · 2007–2015

Questions

Which CTM 125-C years have the lowest MOT pass rate?: 2004 registered examples pass first time less often than the Chituma CTM 125-C overall (59.3%); the 2004 cohort is lowest at 56.7% from 217 tests.
Which CTM 125-C year has the highest MOT pass rate?: 2006, at 61.4% of 140 first tests (2005–2025).
How much does the CTM 125-C pass rate vary by year?: 4.7 percentage points between the highest (2006, 61.4%) and lowest (2004, 56.7%) 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: Chituma CTM 125-C reliability, failures and mileage · ranked #5235 of 5428 models· other Chituma models: GY 125, CTM 50 QT-7