Triumph Thunderbird Abs 1600: MOT pass rate by registration year

Which Thunderbird Abs 1600 years pass first time, and which fall short of the model's 89.5% average, from 2,200 DVSA tests.

2010

highest-passing year · 89.9%

2012

lowest-passing year · 88.2%

1.7pp

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: 2010 (89.9% of 1,100 tests). Lowest: 2012 (88.2% of 381).

Registered	Tests	First-time pass	vs model (89.5%)
2010	1,100	89.9%	+0.4 pp
2011	719	89.4%	-0.1 pp
2012	381	88.2%	-1.3 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 · 2013–2025

Questions

Which Thunderbird Abs 1600 years have the lowest MOT pass rate?: none: no registration year of the Triumph Thunderbird Abs 1600 falls more than two points under the model's 89.5% overall pass rate.
Which Thunderbird Abs 1600 year has the highest MOT pass rate?: 2010, at 89.9% of 1,100 first tests (2005–2025).
How much does the Thunderbird Abs 1600 pass rate vary by year?: 1.7 percentage points between the highest (2010, 89.9%) and lowest (2012, 88.2%) 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: Triumph Thunderbird Abs 1600 reliability, failures and mileage · ranked #1113 of 5428 models· other Triumph models: Bonneville, Tiger, Sprint, Daytona, Speed Triple, Thunderbird