BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
Model report · 2005–2025
89.4%
first-time pass rate
4.6%
failed outright
11,248
median miles at test
13.2k
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2005–2025

The FLSTFI's first-time pass rate has risen 4.4 points since 2005, 86.1% to 90.5%.

85%89%94%2005: 86.1% pass (36 tests)2006: 90.0% pass (370 tests)2007: 90.4% pass (644 tests)2008: 86.8% pass (729 tests)2009: 87.4% pass (896 tests)2010: 87.8% pass (861 tests)2011: 87.0% pass (813 tests)2012: 89.0% pass (784 tests)2013: 87.4% pass (761 tests)2014: 89.5% pass (752 tests)2015: 92.2% pass (745 tests)2016: 90.0% pass (740 tests)2017: 90.9% pass (707 tests)2018: 87.9% pass (568 tests)2019: 90.1% pass (534 tests)2020: 91.0% pass (442 tests)2021: 91.2% pass (636 tests)2022: 92.0% pass (627 tests)2023: 90.5% pass (610 tests)2024: 90.2% pass (461 tests)2025: 90.5% pass (518 tests)20052025

Pass rate by mileage

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

A low-mileage FLSTFI passes first time 89.7% of the time; by 50k that's 95.8%.

86%92%97%0k: 89.7% pass (5,898 tests)10k: 89.2% pass (4,052 tests)20k: 87.8% pass (1,841 tests)30k: 90.2% pass (769 tests)40k: 92.4% pass (342 tests)50k: 95.8% pass (144 tests)0k30k50k

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 FLSTFI

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
228 22 0.3×
reg plates and vin
202 19.5 1.9×
brakes
152 14.7 0.2×
fuel and exhaust
132 12.7 1.2×
lamps and reflectors
103 9.9 0.4×
tyres and wheels
86 8.3 0.3×
Identification of the vehicle
44 4.2 1.4×
tyres
37 3.6 0.4×
steering and suspension
28 2.7 0.1×
structure and attachments
25 2.4 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

same type, similar capacity, high test volume

On first-time pass rate the FLSTFI 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 FLSTFI.

Pass rate by registration year

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

Best year to buy used: 2010 (94.8% pass). Weakest: 2009 (82.7%).

80%89%97%2000: 86.2% pass (203 tests)2001: 89.1% pass (1,472 tests)2002: 88.3% pass (1,401 tests)2003: 90.2% pass (2,231 tests)2004: 89.1% pass (3,608 tests)2005: 88.5% pass (1,684 tests)2006: 91.2% pass (2,241 tests)2007: 87.8% pass (115 tests)2009: 82.7% pass (81 tests)2010: 94.8% pass (58 tests)200020052010

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 FLSTFI FAQ

answers computed from the data above · terms in the glossary

Is the HARLEY-DAVIDSON FLSTFI reliable?

The HARLEY-DAVIDSON FLSTFI is more reliable than average for its class: 89.4% of its 13,234 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #1145 of 5426 models.

What does a FLSTFI fail its MOT on most?

lighting and signalling — 22% of all defects recorded against failed FLSTFI tests.

What is the best year of FLSTFI to buy used?

By first-time pass rate, 2010-registered examples do best (94.8%) and 2009 worst (82.7%). Condition and history still trump the year.

How many miles will a FLSTFI last?

The median FLSTFI shows 11,248 miles at test, and examples around 50k miles still pass 95.8% of the time — mileage alone rarely kills one.