Harley-Davidson FLD Switchback 1690 12: MOT pass rate by registration year

Which FLD Switchback 1690 12 years pass first time, and which fall short of the model's 94.2% average, from 976 DVSA tests.

2012

highest-passing year · 96.0%

2011

lowest-passing year · 91.4%

4.6pp

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: 2012 (96.0% of 473 tests). Lowest: 2011 (91.4% of 373). Years more than two points below the model average: 2011.

Registered	Tests	First-time pass	vs model (94.2%)
2011	373	91.4%	-2.8 pp
2012	473	96.0%	+1.8 pp
2013	130	95.4%	+1.2 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 · 2014–2025

Questions

Which FLD Switchback 1690 12 years have the lowest MOT pass rate?: 2011 registered examples pass first time less often than the Harley-Davidson FLD Switchback 1690 12 overall (94.2%); the 2011 cohort is lowest at 91.4% from 373 tests.
Which FLD Switchback 1690 12 year has the highest MOT pass rate?: 2012, at 96.0% of 473 first tests (2005–2025).
How much does the FLD Switchback 1690 12 pass rate vary by year?: 4.6 percentage points between the highest (2012, 96.0%) and lowest (2011, 91.4%) 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: Harley-Davidson FLD Switchback 1690 12 reliability, failures and mileage · ranked #143 of 5428 models· other Harley-Davidson models: XLH 883, Flstf, Flstc, XL, XL1200C, XL883