Honda ST1100W: MOT pass rate by registration year

Which ST1100W years pass first time, and which fall short of the model's 82.5% average, from 789 DVSA tests.

1999

highest-passing year · 87.3%

1998

lowest-passing year · 81.2%

6.1pp

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: 1999 (87.3% of 63 tests). Lowest: 1998 (81.2% of 573).

Registered	Tests	First-time pass	vs model (82.5%)
1997	117	83.8%	+1.3 pp
1998	573	81.2%	-1.3 pp
1999	63	87.3%	+4.8 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 ST1100W years have the lowest MOT pass rate?: none: no registration year of the Honda ST1100W falls more than two points under the model's 82.5% overall pass rate.
Which ST1100W year has the highest MOT pass rate?: 1999, at 87.3% of 63 first tests (2005–2025).
How much does the ST1100W pass rate vary by year?: 6.1 percentage points between the highest (1999, 87.3%) and lowest (1998, 81.2%) 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 ST1100W reliability, failures and mileage · ranked #3073 of 5428 models· other Honda models: CBR600F, CBR900RR, CBR1100XX, CB500, C90, VFR800 Fi