BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ HARLEY-DAVIDSON/FXDCI DYNA SUPER GLIDE CUSTOM
Model report · 2005–2025

HARLEY-DAVIDSON FXDCI DYNA SUPER GLIDE CUSTOM

1450cc Petrol Class 2
90.0%
first-time pass rate
4.1%
failed outright
12,115
median miles at test
987
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2008–2025

The FXDCI DYNA SUPER GLIDE CUSTOM's first-time pass rate has fallen 6.5 points since 2008, 98.4% to 91.9%.

74%87%100%2008: 98.4% pass (61 tests)2009: 92.1% pass (76 tests)2010: 90.4% pass (83 tests)2011: 97.1% pass (69 tests)2012: 93.3% pass (60 tests)2013: 88.5% pass (61 tests)2014: 94.8% pass (58 tests)2015: 91.1% pass (56 tests)2016: 85.9% pass (64 tests)2017: 89.1% pass (55 tests)2018: 80.4% pass (46 tests)2019: 92.5% pass (40 tests)2020: 86.5% pass (37 tests)2021: 79.2% pass (48 tests)2022: 88.2% pass (51 tests)2023: 90.2% pass (41 tests)2024: 84.8% pass (33 tests)2025: 91.9% pass (37 tests)20082025

Pass rate by mileage

how the FXDCI DYNA SUPER GLIDE CUSTOM's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage FXDCI DYNA SUPER GLIDE CUSTOM passes first time 93.6% of the time; by 40k that's 65.7%.

60%80%99%0k: 93.6% pass (373 tests)10k: 91.3% pass (335 tests)20k: 90.4% pass (146 tests)30k: 78.4% pass (88 tests)40k: 65.7% pass (35 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 FXDCI DYNA SUPER GLIDE CUSTOM

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lamps and reflectors
13 20.3 0.6×
brakes
9 14.1 0.2×
reg plates and vin
9 14.1 1.4×
lighting and signalling
7 10.9 0.2×
fuel and exhaust
7 10.9 0.9×
tyres and wheels
5 7.8 0.3×
steering and suspension
4 6.2 0.1×
Identification of the vehicle
4 6.2 1.8×
suspension
3 4.7 0.3×
tyres
3 4.7 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 FXDCI DYNA SUPER GLIDE CUSTOM beats 4 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 FXDCI DYNA SUPER GLIDE CUSTOM.

Pass rate by registration year

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

Best year to buy used: 2005 (91.9% pass). Weakest: 2004 (79.9%).

78%86%94%2004: 79.9% pass (144 tests)2005: 91.9% pass (620 tests)2006: 90.5% pass (199 tests)200420052006

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 FXDCI DYNA SUPER GLIDE CUSTOM FAQ

answers computed from the data above · terms in the glossary

Is the HARLEY-DAVIDSON FXDCI DYNA SUPER GLIDE CUSTOM reliable?

The HARLEY-DAVIDSON FXDCI DYNA SUPER GLIDE CUSTOM is more reliable than average for its class: 90.0% of its 987 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #959 of 5426 models.

What does a FXDCI DYNA SUPER GLIDE CUSTOM fail its MOT on most?

lamps and reflectors — 20% of all defects recorded against failed FXDCI DYNA SUPER GLIDE CUSTOM tests.

What is the best year of FXDCI DYNA SUPER GLIDE CUSTOM to buy used?

By first-time pass rate, 2005-registered examples do best (91.9%) and 2004 worst (79.9%). Condition and history still trump the year.

How many miles will a FXDCI DYNA SUPER GLIDE CUSTOM last?

The median FXDCI DYNA SUPER GLIDE CUSTOM shows 12,115 miles at test, and examples around 40k miles still pass 65.7% of the time — mileage alone rarely kills one.