Harley-Davidson XL 883 N Iron 20: MOT pass rate by registration year

Which XL 883 N Iron 20 years pass first time, and which fall short of the model's 90.3% average, from 536 DVSA tests.

2020

highest-passing year · 90.6%

2019

lowest-passing year · 89.5%

1.1pp

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: 2020 (90.6% of 298 tests). Lowest: 2019 (89.5% of 105).

Registered	Tests	First-time pass	vs model (90.3%)
2019	105	89.5%	-0.8 pp
2020	298	90.6%	+0.3 pp
2021	133	90.2%	-0.1 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 · 2023–2025

Questions

Which XL 883 N Iron 20 years have the lowest MOT pass rate?: none: no registration year of the Harley-Davidson XL 883 N Iron 20 falls more than two points under the model's 90.3% overall pass rate.
Which XL 883 N Iron 20 year has the highest MOT pass rate?: 2020, at 90.6% of 298 first tests (2005–2025).
How much does the XL 883 N Iron 20 pass rate vary by year?: 1.1 percentage points between the highest (2020, 90.6%) and lowest (2019, 89.5%) 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 XL 883 N Iron 20 reliability, failures and mileage · ranked #854 of 5428 models· other Harley-Davidson models: XLH 883, Flstf, Flstc, XL, XL1200C, XL883