Montesa Cota 4RT: MOT pass rate by registration year

Which Cota 4RT years pass first time, and which fall short of the model's 90.2% average, from 732 DVSA tests.

2007

highest-passing year · 95.3%

2006

lowest-passing year · 86.4%

8.9pp

spread across 5 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: 2007 (95.3% of 106 tests). Lowest: 2006 (86.4% of 177). Years more than two points below the model average: 2006.

Registered	Tests	First-time pass	vs model (90.2%)
2005	103	89.3%	-0.9 pp
2006	177	86.4%	-3.8 pp
2007	106	95.3%	+5.1 pp
2008	68	89.7%	-0.5 pp
2017	103	93.2%	+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 · 2009–2023

Questions

Which Cota 4RT years have the lowest MOT pass rate?: 2006 registered examples pass first time less often than the Montesa Cota 4RT overall (90.2%); the 2006 cohort is lowest at 86.4% from 177 tests.
Which Cota 4RT year has the highest MOT pass rate?: 2007, at 95.3% of 106 first tests (2005–2025). Years more than two points above the model average: 2007, 2017.
How much does the Cota 4RT pass rate vary by year?: 8.9 percentage points between the highest (2007, 95.3%) and lowest (2006, 86.4%) 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: Montesa Cota 4RT reliability, failures and mileage · ranked #884 of 5428 models· other Montesa models: 4RIDE, Cota