Harley-Davidson Fxdf Fat Bob: MOT pass rate by registration year

Which Fxdf Fat Bob years pass first time, and which fall short of the model's 85.6% average, from 975 DVSA tests.

2007

highest-passing year · 88.2%

2008

lowest-passing year · 83.7%

4.5pp

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: 2007 (88.2% of 381 tests). Lowest: 2008 (83.7% of 461).

Registered	Tests	First-time pass	vs model (85.6%)
2007	381	88.2%	+2.6 pp
2008	461	83.7%	-1.9 pp
2011	68	85.3%	-0.3 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 · 2011–2025

Questions

Which Fxdf Fat Bob years have the lowest MOT pass rate?: none: no registration year of the Harley-Davidson Fxdf Fat Bob falls more than two points under the model's 85.6% overall pass rate.
Which Fxdf Fat Bob year has the highest MOT pass rate?: 2007, at 88.2% of 381 first tests (2005–2025).
How much does the Fxdf Fat Bob pass rate vary by year?: 4.5 percentage points between the highest (2007, 88.2%) and lowest (2008, 83.7%) 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 Fxdf Fat Bob reliability, failures and mileage · ranked #2333 of 5428 models· other Harley-Davidson models: XLH 883, Flstf, Flstc, XL, XL1200C, XL883