HARLEY-DAVIDSON FAT BOB FXDF 103 1690 13
Pass rate over time
The FAT BOB FXDF 103 1690 13's first-time pass rate has held steady since 2016 (87.8% → 87.3%).
Pass rate by mileage
A low-mileage FAT BOB FXDF 103 1690 13 passes first time 90.4% of the time; by 20k that's 86.2%.
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 FAT BOB FXDF 103 1690 13
| Component group | Share of defects | Defects | % of defects | vs all bikes |
|---|---|---|---|---|
| lamps and reflectors |
|
34 | 43 | 1.5× |
| brakes |
|
10 | 12.7 | 0.2× |
| structure and attachments |
|
6 | 7.6 | 0.9× |
| suspension |
|
6 | 7.6 | 0.7× |
| lighting and signalling |
|
6 | 7.6 | 0.2× |
| Identification of the vehicle |
|
5 | 6.3 | 2.2× |
| steering |
|
5 | 6.3 | 1.0× |
| reg plates and vin |
|
3 | 3.8 | 0.5× |
| audible warning (Horn) |
|
2 | 2.5 | 1.1× |
| tyres |
|
2 | 2.5 | 0.3× |
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 FAT BOB FXDF 103 1690 13 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 FAT BOB FXDF 103 1690 13.
Pass rate by registration year
Best year to buy used: 2013 (89.6% pass). Weakest: 2013 (89.6%).
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 FAT BOB FXDF 103 1690 13 FAQ
Is the HARLEY-DAVIDSON FAT BOB FXDF 103 1690 13 reliable?
The HARLEY-DAVIDSON FAT BOB FXDF 103 1690 13 is more reliable than average for its class: 89.6% of its 1,003 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #1075 of 5426 models.
What does a FAT BOB FXDF 103 1690 13 fail its MOT on most?
lamps and reflectors — 43% of all defects recorded against failed FAT BOB FXDF 103 1690 13 tests.
How many miles will a FAT BOB FXDF 103 1690 13 last?
The median FAT BOB FXDF 103 1690 13 shows 8,834 miles at test, and examples around 20k miles still pass 86.2% of the time — mileage alone rarely kills one.