Harley-Davidson XL 1200 T Superlow SPORTSTER17: MOT pass rate by registration year

Which XL 1200 T Superlow SPORTSTER17 years pass first time, and which fall short of the model's 93.4% average, from 530 DVSA tests.

2016

highest-passing year · 95.0%

2017

lowest-passing year · 92.9%

2.1pp

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: 2016 (95.0% of 101 tests). Lowest: 2017 (92.9% of 338).

Registered	Tests	First-time pass	vs model (93.4%)
2016	101	95.0%	+1.6 pp
2017	338	92.9%	-0.5 pp
2018	91	93.4%	+0.0 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 XL 1200 T Superlow SPORTSTER17 years have the lowest MOT pass rate?: none: no registration year of the Harley-Davidson XL 1200 T Superlow SPORTSTER17 falls more than two points under the model's 93.4% overall pass rate.
Which XL 1200 T Superlow SPORTSTER17 year has the highest MOT pass rate?: 2016, at 95.0% of 101 first tests (2005–2025).
How much does the XL 1200 T Superlow SPORTSTER17 pass rate vary by year?: 2.1 percentage points between the highest (2016, 95.0%) and lowest (2017, 92.9%) 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 1200 T Superlow SPORTSTER17 reliability, failures and mileage · ranked #245 of 5428 models· other Harley-Davidson models: XLH 883, Flstf, Flstc, XL, XL1200C, XL883