BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ HARLEY-DAVIDSON/FLSL SOFTAIL SLIM 1745 19
Model report · 2005–2025

HARLEY-DAVIDSON FLSL SOFTAIL SLIM 1745 19

1745cc Petrol Class 2
92.9%
first-time pass rate
1.9%
failed outright
5,230
median miles at test
210
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2022–2025

The FLSL SOFTAIL SLIM 1745 19's first-time pass rate has fallen 2.2 points since 2022, 96.4% to 94.2%.

88%93%98%2022: 96.4% pass (55 tests)2023: 89.3% pass (56 tests)2024: 93.0% pass (43 tests)2025: 94.2% pass (52 tests)20222025

What fails on a FLSL SOFTAIL SLIM 1745 19

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
lamps and reflectors
3 60
Identification of the vehicle
1 20
brakes
1 20

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 FLSL SOFTAIL SLIM 1745 19 beats 4 of its 4 closest rivals (HARLEY-DAVIDSON FLSTF, HARLEY-DAVIDSON FLSTC, HARLEY-DAVIDSON FXDWG).

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 FLSL SOFTAIL SLIM 1745 19.

Pass rate by registration year

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

Best year to buy used: 2019 (92.6% pass). Weakest: 2019 (92.6%).

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.