BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
Model report · 2005–2025
88.9%
first-time pass rate
4.9%
failed outright
12,491
median miles at test
30.1k
MOT tests, 2005–2025

Pass rate over time

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

The FLSTF's first-time pass rate has risen 2.5 points since 2005, 89.3% to 91.8%.

83%89%96%2005: 89.3% pass (168 tests)2006: 93.4% pass (1,224 tests)2007: 90.4% pass (1,167 tests)2008: 88.7% pass (1,182 tests)2009: 86.4% pass (1,181 tests)2010: 87.2% pass (1,439 tests)2011: 87.6% pass (1,619 tests)2012: 85.0% pass (1,660 tests)2013: 88.1% pass (1,708 tests)2014: 87.9% pass (1,722 tests)2015: 88.9% pass (1,694 tests)2016: 87.3% pass (1,738 tests)2017: 88.0% pass (1,745 tests)2018: 89.6% pass (1,444 tests)2019: 88.6% pass (1,528 tests)2020: 91.2% pass (1,250 tests)2021: 90.4% pass (1,733 tests)2022: 90.3% pass (1,666 tests)2023: 89.7% pass (1,641 tests)2024: 90.4% pass (1,262 tests)2025: 91.8% pass (1,344 tests)20052025

Pass rate by mileage

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

A low-mileage FLSTF passes first time 90.1% of the time; by 50k that's 89.3%.

87%89%91%0k: 90.1% pass (11,825 tests)10k: 88.7% pass (9,661 tests)20k: 87.8% pass (4,641 tests)30k: 87.5% pass (2,043 tests)40k: 89.2% pass (863 tests)50k: 89.3% pass (402 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 FLSTF

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
696 26.3 0.4×
lamps and reflectors
402 15.2 0.6×
brakes
388 14.7 0.2×
reg plates and vin
345 13 1.4×
tyres and wheels
227 8.6 0.3×
fuel and exhaust
179 6.8 0.7×
steering and suspension
116 4.4 0.1×
tyres
110 4.2 0.5×
Identification of the vehicle
109 4.1 1.6×
structure and attachments
73 2.8 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 FLSTF beats 3 of its 4 closest rivals (HARLEY-DAVIDSON FLSTC, HARLEY-DAVIDSON XL1200C, HARLEY-DAVIDSON FXDWG).

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 FLSTF.

Pass rate by registration year

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

Best year to buy used: 2013 (92.7% pass). Weakest: 1994 (83.9%).

82%88%94%1990: 87.5% pass (281 tests)1991: 88.2% pass (229 tests)1992: 86.2% pass (312 tests)1993: 86.8% pass (272 tests)1994: 83.9% pass (429 tests)1995: 86.7% pass (519 tests)1996: 89.5% pass (685 tests)1997: 89.3% pass (1,075 tests)1998: 87.3% pass (1,959 tests)1999: 90.6% pass (2,442 tests)2000: 88.4% pass (3,064 tests)2001: 88.2% pass (2,044 tests)2002: 88.8% pass (2,232 tests)2003: 89.7% pass (2,090 tests)2004: 87.8% pass (360 tests)2005: 88.7% pass (151 tests)2006: 88.5% pass (978 tests)2007: 89.1% pass (3,883 tests)2008: 90.4% pass (2,453 tests)2009: 88.7% pass (1,659 tests)2010: 88.2% pass (629 tests)2011: 88.2% pass (476 tests)2012: 92.3% pass (182 tests)2013: 92.7% pass (55 tests)2014: 91.4% pass (510 tests)2015: 90.8% pass (589 tests)2016: 88.2% pass (331 tests)2017: 88.2% pass (51 tests)199020042017

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 FLSTF FAQ

answers computed from the data above · terms in the glossary

Is the HARLEY-DAVIDSON FLSTF reliable?

The HARLEY-DAVIDSON FLSTF is more reliable than average for its class: 88.9% of its 30,115 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #1303 of 5426 models.

What does a FLSTF fail its MOT on most?

lighting and signalling — 26% of all defects recorded against failed FLSTF tests.

What is the best year of FLSTF to buy used?

By first-time pass rate, 2013-registered examples do best (92.7%) and 1994 worst (83.9%). Condition and history still trump the year.

How many miles will a FLSTF last?

The median FLSTF shows 12,491 miles at test, and examples around 50k miles still pass 89.3% of the time — mileage alone rarely kills one.