Data as of: DVSA MOT results to 2025
HARLEY-DAVIDSON FXDCI DYNA SUPER GLIDE CUSTOM
The pass rate is the MOT first-time pass: a roadworthiness check of the items an MOT covers (brakes, lights, tyres, steering, structure, emissions), not a full mechanical inspection of engine or gearbox internals. It is a reliability signal, not a complete measure of mechanical reliability. What this measures.
“vs expected” adjusts for age, mileage and test class, so a cherished classic and a hard-used commuter are compared fairly. How this works.
Pass rate over time
The FXDCI DYNA SUPER GLIDE CUSTOM's first-time pass rate has fallen 6.5 points since 2008, 98.4% to 91.9%.
Pass rate by mileage
A low-mileage FXDCI DYNA SUPER GLIDE CUSTOM passes first time 93.6% of the time; by 40k that's 65.7%.
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
| 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
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.
Compare with any bike
More HARLEY-DAVIDSON models
Pass rate by registration year
Highest pass rate: 2005 (91.9%). Lowest: 2004 (79.9%). Every Fxdci Dyna Super Glide Custom year compared →
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
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 #960 of 5428 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, so mileage alone rarely decides the result.
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