BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
Model report · 2005–2025
89.2%
first-time pass rate
4.3%
failed outright
9,019
median miles at test
1,584
MOT tests, 2005–2025

Pass rate over time

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

The FLSTFIA's first-time pass rate has risen 5.6 points since 2008, 84.4% to 90.0%.

80%90%100%2008: 84.4% pass (135 tests)2009: 88.7% pass (124 tests)2010: 87.7% pass (122 tests)2011: 90.0% pass (110 tests)2012: 85.4% pass (103 tests)2013: 87.3% pass (102 tests)2014: 83.8% pass (99 tests)2015: 87.9% pass (91 tests)2016: 92.0% pass (88 tests)2017: 91.6% pass (83 tests)2018: 94.0% pass (67 tests)2019: 94.3% pass (70 tests)2020: 87.5% pass (56 tests)2021: 91.4% pass (70 tests)2022: 90.3% pass (72 tests)2023: 97.2% pass (72 tests)2024: 91.7% pass (48 tests)2025: 90.0% pass (70 tests)20082025

Pass rate by mileage

how the FLSTFIA's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage FLSTFIA passes first time 89.5% of the time; by 30k that's 93.7%.

85%90%95%0k: 89.5% pass (850 tests)10k: 88.8% pass (491 tests)20k: 86.2% pass (130 tests)30k: 93.7% pass (63 tests)0k20k30k

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 FLSTFIA

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
32 28.1 0.3×
reg plates and vin
25 21.9 2.0×
fuel and exhaust
24 21.1 1.9×
brakes
10 8.8 0.1×
lamps and reflectors
7 6.1 0.2×
tyres and wheels
6 5.3 0.2×
driving controls
3 2.6 0.8×
tyres
3 2.6 0.3×
structure and attachments
2 1.8 0.2×
Identification of the vehicle
2 1.8 0.5×

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 FLSTFIA beats 3 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 FLSTFIA.

Pass rate by registration year

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

Best year to buy used: 2005 (89.2% pass). Weakest: 2005 (89.2%).

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.

HARLEY-DAVIDSON FLSTFIA FAQ

answers computed from the data above · terms in the glossary

Is the HARLEY-DAVIDSON FLSTFIA reliable?

The HARLEY-DAVIDSON FLSTFIA is more reliable than average for its class: 89.2% of its 1,584 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #1212 of 5426 models.

What does a FLSTFIA fail its MOT on most?

lighting and signalling — 28% of all defects recorded against failed FLSTFIA tests.

How many miles will a FLSTFIA last?

The median FLSTFIA shows 9,019 miles at test, and examples around 30k miles still pass 93.7% of the time — mileage alone rarely kills one.