HARLEY-DAVIDSON FXDC SUPERGLIDE CU 1584 11
Pass rate over time
The FXDC SUPERGLIDE CU 1584 11's first-time pass rate has fallen 11.3 points since 2014, 94.6% to 83.3%.
Pass rate by mileage
A low-mileage FXDC SUPERGLIDE CU 1584 11 passes first time 90.8% of the time; by 20k that's 90.4%.
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 FXDC SUPERGLIDE CU 1584 11
| Component group | Share of defects | Defects | % of defects |
|---|---|---|---|
| lighting and signalling |
|
7 | 20.6 |
| lamps and reflectors |
|
5 | 14.7 |
| steering and suspension |
|
4 | 11.8 |
| reg plates and vin |
|
4 | 11.8 |
| tyres |
|
3 | 8.8 |
| steering |
|
3 | 8.8 |
| tyres and wheels |
|
2 | 5.9 |
| fuel and exhaust |
|
2 | 5.9 |
| suspension |
|
2 | 5.9 |
| brakes |
|
2 | 5.9 |
Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects.
How rivals compare
On first-time pass rate the FXDC SUPERGLIDE CU 1584 11 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 FXDC SUPERGLIDE CU 1584 11.
Pass rate by registration year
Best year to buy used: 2012 (91.4% pass). Weakest: 2010 (90.2%).
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.