BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
Model report · 2005–2025
88.4%
first-time pass rate
5.7%
failed outright
16,027
median miles at test
663
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2006–2022

The FXS's first-time pass rate has risen 8.3 points since 2006, 83.8% to 92.1%.

68%84%100%2006: 83.8% pass (37 tests)2007: 87.9% pass (33 tests)2009: 90.0% pass (30 tests)2014: 83.9% pass (31 tests)2015: 87.2% pass (39 tests)2016: 88.1% pass (42 tests)2017: 74.1% pass (54 tests)2018: 85.7% pass (42 tests)2019: 97.6% pass (41 tests)2020: 83.3% pass (36 tests)2021: 88.6% pass (44 tests)2022: 92.1% pass (38 tests)20062022

Pass rate by mileage

how the FXS's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage FXS passes first time 90.1% of the time; by 40k that's 86.7%.

86%88%91%0k: 90.1% pass (233 tests)10k: 88.2% pass (161 tests)20k: 87.5% pass (120 tests)40k: 86.7% pass (30 tests)0k20k40k

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 FXS

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
25 33.3 0.7×
brakes
18 24 0.5×
steering and suspension
7 9.3 0.4×
reg plates and vin
6 8 1.6×
drive system
5 6.7 0.8×
lamps and reflectors
4 5.3 0.2×
Identification of the vehicle
3 4 2.0×
body and structure
3 4 0.9×
fuel and exhaust
2 2.7 0.4×
structure and attachments
2 2.7 0.4×

Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects. "vs all bikes" is how often this model's tests record a defect in the group, as a multiple of the all-bike rate.

How rivals compare

same type, similar capacity, high test volume

On first-time pass rate the FXS 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 FXS.

Pass rate by registration year

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

Best year to buy used: 1980 (96.4% pass). Weakest: 2011 (80.5%).

77%88%100%1979: 85.3% pass (143 tests)1980: 96.4% pass (83 tests)1981: 88.9% pass (72 tests)2011: 80.5% pass (77 tests)197919812011

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.

HARLEY-DAVIDSON FXS FAQ

answers computed from the data above · terms in the glossary

Is the HARLEY-DAVIDSON FXS reliable?

The HARLEY-DAVIDSON FXS is more reliable than average for its class: 88.4% of its 663 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #1478 of 5426 models.

What does a FXS fail its MOT on most?

lighting and signalling — 33% of all defects recorded against failed FXS tests.

What is the best year of FXS to buy used?

By first-time pass rate, 1980-registered examples do best (96.4%) and 2011 worst (80.5%). Condition and history still trump the year.

How many miles will a FXS last?

The median FXS shows 16,027 miles at test, and examples around 40k miles still pass 86.7% of the time — mileage alone rarely kills one.