HARLEY-DAVIDSON FLSTS
Pass rate over time
The FLSTS's first-time pass rate has risen 3.3 points since 2005, 90.6% to 93.9%.
Pass rate by mileage
A low-mileage FLSTS passes first time 90.7% of the time; by 50k that's 87.0%.
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 FLSTS
| Component group | Share of defects | Defects | % of defects | vs all bikes |
|---|---|---|---|---|
| lighting and signalling |
|
71 | 23.7 | 0.3× |
| reg plates and vin |
|
52 | 17.3 | 1.7× |
| brakes |
|
52 | 17.3 | 0.2× |
| lamps and reflectors |
|
34 | 11.3 | 0.4× |
| steering and suspension |
|
31 | 10.3 | 0.3× |
| tyres and wheels |
|
29 | 9.7 | 0.4× |
| fuel and exhaust |
|
12 | 4 | 0.4× |
| Identification of the vehicle |
|
8 | 2.7 | 0.9× |
| steering |
|
6 | 2 | 0.4× |
| tyres |
|
5 | 1.7 | 0.2× |
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 FLSTS 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 FLSTS.
Pass rate by registration year
Best year to buy used: 1999 (92.8% pass). Weakest: 2001 (87.8%).
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 FLSTS FAQ
Is the HARLEY-DAVIDSON FLSTS reliable?
The HARLEY-DAVIDSON FLSTS is more reliable than average for its class: 89.5% of its 3,677 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #1111 of 5426 models.
What does a FLSTS fail its MOT on most?
lighting and signalling — 24% of all defects recorded against failed FLSTS tests.
What is the best year of FLSTS to buy used?
By first-time pass rate, 1999-registered examples do best (92.8%) and 2001 worst (87.8%). Condition and history still trump the year.
How many miles will a FLSTS last?
The median FLSTS shows 16,337 miles at test, and examples around 50k miles still pass 87.0% of the time — mileage alone rarely kills one.