Ducati ST4: MOT pass rate by registration year

Which ST4 years pass first time, and which fall short of the model's 84.0% average, from 4,934 DVSA tests.

2000

highest-passing year · 85.7%

1998

lowest-passing year · 81.4%

4.3pp

spread across 7 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: 2000 (85.7% of 1,374 tests). Lowest: 1998 (81.4% of 86). Years more than two points below the model average: 1998, 1999.

Registered	Tests	First-time pass	vs model (84.0%)
1998	86	81.4%	-2.6 pp
1999	1,021	81.5%	-2.5 pp
2000	1,374	85.7%	+1.7 pp
2001	1,122	84.1%	+0.1 pp
2002	748	85.2%	+1.2 pp
2003	325	82.2%	-1.8 pp
2004	186	85.5%	+1.5 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 · 2005–2025

Questions

Which ST4 years have the lowest MOT pass rate?: 1998, 1999 registered examples pass first time less often than the Ducati ST4 overall (84.0%); the 1998 cohort is lowest at 81.4% from 86 tests.
Which ST4 year has the highest MOT pass rate?: 2000, at 85.7% of 1,374 first tests (2005–2025).
How much does the ST4 pass rate vary by year?: 4.3 percentage points between the highest (2000, 85.7%) and lowest (1998, 81.4%) 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: Ducati ST4 reliability, failures and mileage · ranked #2748 of 5428 models· other Ducati models: 748, Multistrada, 996, 916, 900, M