BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
Model report · 2005–2025
87.4%
first-time pass rate
5.6%
failed outright
17,616
median miles at test
1,364
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2006–2025

The FLST's first-time pass rate has fallen 1.2 points since 2006, 90.6% to 89.4%.

78%86%95%2006: 90.6% pass (96 tests)2007: 84.4% pass (90 tests)2008: 80.6% pass (93 tests)2009: 84.5% pass (84 tests)2010: 88.0% pass (75 tests)2011: 84.6% pass (78 tests)2012: 84.0% pass (75 tests)2013: 89.9% pass (69 tests)2014: 84.6% pass (65 tests)2015: 92.2% pass (64 tests)2016: 88.2% pass (68 tests)2017: 87.3% pass (63 tests)2018: 88.9% pass (54 tests)2019: 88.5% pass (52 tests)2020: 89.5% pass (38 tests)2021: 89.7% pass (68 tests)2022: 90.2% pass (61 tests)2023: 89.8% pass (59 tests)2024: 91.3% pass (46 tests)2025: 89.4% pass (47 tests)20062025

Pass rate by mileage

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

A low-mileage FLST passes first time 89.6% of the time; by 50k that's 86.7%.

85%88%90%0k: 89.6% pass (395 tests)10k: 89.0% pass (318 tests)20k: 88.1% pass (243 tests)30k: 86.7% pass (166 tests)40k: 85.5% pass (55 tests)50k: 86.7% pass (45 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 FLST

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
43 28.9 0.5×
lamps and reflectors
21 14.1 0.6×
brakes
20 13.4 0.3×
reg plates and vin
17 11.4 1.9×
tyres and wheels
12 8.1 0.4×
steering and suspension
10 6.7 0.2×
structure and attachments
8 5.4 0.9×
Identification of the vehicle
7 4.7 2.2×
fuel and exhaust
7 4.7 0.6×
steering
4 2.7 0.7×

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 FLST beats 0 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 FLST.

Pass rate by registration year

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

Best year to buy used: 1989 (92.6% pass). Weakest: 1986 (82.8%).

81%88%95%1986: 82.8% pass (87 tests)1989: 92.6% pass (135 tests)1990: 86.6% pass (119 tests)1991: 86.3% pass (51 tests)1992: 86.3% pass (102 tests)1995: 87.8% pass (131 tests)1996: 87.0% pass (138 tests)1997: 91.5% pass (106 tests)1998: 85.9% pass (85 tests)198619921998

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 FLST FAQ

answers computed from the data above · terms in the glossary

Is the HARLEY-DAVIDSON FLST reliable?

The HARLEY-DAVIDSON FLST is more reliable than average for its class: 87.4% of its 1,364 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #1784 of 5426 models.

What does a FLST fail its MOT on most?

lighting and signalling — 29% of all defects recorded against failed FLST tests.

What is the best year of FLST to buy used?

By first-time pass rate, 1989-registered examples do best (92.6%) and 1986 worst (82.8%). Condition and history still trump the year.

How many miles will a FLST last?

The median FLST shows 17,616 miles at test, and examples around 50k miles still pass 86.7% of the time — mileage alone rarely kills one.