Piaggio Zip 125: MOT pass rate by registration year

Which Zip 125 years pass first time, and which fall short of the model's 68.9% average, from 711 DVSA tests.

2001

highest-passing year · 74.7%

2003

lowest-passing year · 58.6%

16.1pp

spread across 4 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: 2001 (74.7% of 293 tests). Lowest: 2003 (58.6% of 116). Years more than two points below the model average: 2002, 2003.

Registered	Tests	First-time pass	vs model (68.9%)
2001	293	74.7%	+5.8 pp
2002	180	63.9%	-5.0 pp
2003	116	58.6%	-10.3 pp
2004	111	70.3%	+1.4 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 · 2005–2011

Questions

Which Zip 125 years have the lowest MOT pass rate?: 2002, 2003 registered examples pass first time less often than the Piaggio Zip 125 overall (68.9%); the 2003 cohort is lowest at 58.6% from 116 tests.
Which Zip 125 year has the highest MOT pass rate?: 2001, at 74.7% of 293 first tests (2005–2025).
How much does the Zip 125 pass rate vary by year?: 16.1 percentage points between the highest (2001, 74.7%) and lowest (2003, 58.6%) 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: Piaggio Zip 125 reliability, failures and mileage · ranked #4803 of 5428 models· other Piaggio models: Vespa, Zip, NRG, PX 125 (vespa), PX 200 E, ET2