BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ HARLEY-DAVIDSON/SOFTAIL SLIM FLS 103 13
Model report · 2005–2025

HARLEY-DAVIDSON SOFTAIL SLIM FLS 103 13

1690cc Petrol Class 2
83.6%
first-time pass rate
6.0%
failed outright
6,682
median miles at test
464
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2016–2025

The SOFTAIL SLIM FLS 103 13's first-time pass rate has held steady since 2016 (82.2% → 82.9%).

73%83%92%2016: 82.2% pass (73 tests)2017: 82.0% pass (61 tests)2018: 88.9% pass (45 tests)2019: 86.0% pass (43 tests)2021: 86.7% pass (45 tests)2022: 80.4% pass (46 tests)2023: 76.1% pass (46 tests)2024: 83.7% pass (43 tests)2025: 82.9% pass (35 tests)20162025

What fails on a SOFTAIL SLIM FLS 103 13

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
lamps and reflectors
13 27.7
lighting and signalling
8 17
reg plates and vin
6 12.8
Identification of the vehicle
5 10.6
brakes
4 8.5
structure and attachments
4 8.5
tyres
3 6.4
steering
2 4.3
tyres and wheels
1 2.1
driving controls
1 2.1

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 SOFTAIL SLIM FLS 103 13 beats 0 of its 4 closest rivals (HARLEY-DAVIDSON FLSTF, HARLEY-DAVIDSON FLSTC, HARLEY-DAVIDSON XL1200C).

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 SOFTAIL SLIM FLS 103 13.

Pass rate by registration year

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

Best year to buy used: 2013 (84.4% pass). Weakest: 2013 (84.4%).

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.