Harley-Davidson Fxbb Street Bob 1745 18: MOT pass rate by registration year

Which Fxbb Street Bob 1745 18 years pass first time, and which fall short of the model's 92.1% average, from 1,047 DVSA tests.

2017

highest-passing year · 92.9%

2019

lowest-passing year · 90.4%

2.5pp

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: 2017 (92.9% of 238 tests). Lowest: 2019 (90.4% of 73).

Registered	Tests	First-time pass	vs model (92.1%)
2017	238	92.9%	+0.8 pp
2018	736	92.0%	-0.1 pp
2019	73	90.4%	-1.7 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 · 2020–2025

Questions

Which Fxbb Street Bob 1745 18 years have the lowest MOT pass rate?: none: no registration year of the Harley-Davidson Fxbb Street Bob 1745 18 falls more than two points under the model's 92.1% overall pass rate.
Which Fxbb Street Bob 1745 18 year has the highest MOT pass rate?: 2017, at 92.9% of 238 first tests (2005–2025).
How much does the Fxbb Street Bob 1745 18 pass rate vary by year?: 2.5 percentage points between the highest (2017, 92.9%) and lowest (2019, 90.4%) 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 Fxbb Street Bob 1745 18 reliability, failures and mileage · ranked #455 of 5428 models· other Harley-Davidson models: XLH 883, Flstf, Flstc, XL, XL1200C, XL883