Harley-Davidson XL 883 N Iron 18 vs Harley-Davidson XL

The Harley-Davidson XL 883 N Iron 18 passes its MOT first time more often than the Harley-Davidson XL: 89.2% vs 87.9%, a 1.3-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025

Metric	Harley-Davidson XL 883 N Iron 18	Harley-Davidson XL
First-time pass rate	89.2%	87.9%
Outright fail rate	4.4%	5.3%
Median miles at test	4,527	6,108
MOT tests analysed	1,597	18,541
Most common failure	lamps and reflectors	lamps and reflectors

First-time outcomes on normal tests, 2005–2025. "Most common failure" is the component group with the most recorded defects on failed tests. Read pass rates against test counts: a smaller sample is noisier. Source: DVSA anonymised MOT results.

HARLEY-DAVIDSON XL 883 N IRON 18 89.2% pass · 1,597 tests HARLEY-DAVIDSON XL 87.9% pass · 18.5k tests

See each bike's full report (trend, mileage curve, failure breakdown and rivals) on its own page.