BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ HARLEY-DAVIDSON/FXDLS DYNA LOWRIDER S 1801 16
Model report · 2005–2025

HARLEY-DAVIDSON FXDLS DYNA LOWRIDER S 1801 16

1801cc Petrol Class 2
88.6%
first-time pass rate
3.4%
failed outright
7,547
median miles at test
351
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2019–2025

The FXDLS DYNA LOWRIDER S 1801 16's first-time pass rate has risen 24.0 points since 2019, 73.7% to 97.7%.

68%84%100%2019: 73.7% pass (57 tests)2020: 95.0% pass (40 tests)2021: 90.0% pass (60 tests)2022: 91.2% pass (57 tests)2023: 89.1% pass (55 tests)2024: 86.8% pass (38 tests)2025: 97.7% pass (44 tests)20192025

Pass rate by mileage

how the FXDLS DYNA LOWRIDER S 1801 16's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage FXDLS DYNA LOWRIDER S 1801 16 passes first time 89.2% of the time; by 20k that's 85.3%.

85%87%90%0k: 89.2% pass (222 tests)10k: 87.8% pass (90 tests)20k: 85.3% pass (34 tests)0k10k20k

First-time pass rate by odometer reading at test, 10,000-mile bands for this model. Mileage is the strongest reliability signal. See the full curve.

What fails on a FXDLS DYNA LOWRIDER S 1801 16

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
lamps and reflectors
5 29.4
audible warning (Horn)
3 17.6
Identification of the vehicle
3 17.6
steering
2 11.8
brakes
1 5.9
structure and attachments
1 5.9
suspension
1 5.9
tyres
1 5.9

Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects.

How rivals compare

same type, similar capacity, high test volume

On first-time pass rate the FXDLS DYNA LOWRIDER S 1801 16 beats 1 of its 4 closest rivals (HARLEY-DAVIDSON FLSTF, HARLEY-DAVIDSON FLSTC, TRIUMPH ROCKET III).

Rivals share this bike's type and sit within ±30% of its engine capacity, ≥ 5,000 tests. Card colour = better/worse first-time pass rate than the FXDLS DYNA LOWRIDER S 1801 16.

Pass rate by registration year

how each model-year cohort fares · registration year from first use date

Best year to buy used: 2016 (88.6% pass). Weakest: 2016 (88.6%).

First-time pass rate by the year each bike was first registered (cohorts with ≥ 50 tests). Older cohorts are survivors: the worst examples have already left the road, which tends to lift the earliest years.