BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
Model report · 2005–2025
87.2%
first-time pass rate
5.7%
failed outright
15,768
median miles at test
6,065
MOT tests, 2005–2025

Pass rate over time

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

The FXSTB's first-time pass rate has risen 2.4 points since 2005, 86.7% to 89.1%.

80%88%95%2005: 86.7% pass (30 tests)2006: 87.2% pass (327 tests)2007: 92.8% pass (304 tests)2008: 87.8% pass (303 tests)2009: 85.0% pass (294 tests)2010: 83.3% pass (342 tests)2011: 85.6% pass (368 tests)2012: 86.6% pass (350 tests)2013: 84.7% pass (354 tests)2014: 88.4% pass (346 tests)2015: 90.1% pass (344 tests)2016: 88.6% pass (350 tests)2017: 87.8% pass (327 tests)2018: 87.8% pass (255 tests)2019: 87.5% pass (264 tests)2020: 87.1% pass (224 tests)2021: 87.8% pass (286 tests)2022: 86.3% pass (284 tests)2023: 88.3% pass (273 tests)2024: 82.7% pass (220 tests)2025: 89.1% pass (220 tests)20052025

Pass rate by mileage

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

A low-mileage FXSTB passes first time 88.2% of the time; by 50k that's 83.9%.

83%86%89%0k: 88.2% pass (1,732 tests)10k: 87.4% pass (1,913 tests)20k: 87.1% pass (1,074 tests)30k: 87.1% pass (619 tests)40k: 84.4% pass (263 tests)50k: 83.9% pass (112 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 FXSTB

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
194 27.4 0.5×
brakes
117 16.5 0.3×
lamps and reflectors
94 13.3 0.7×
reg plates and vin
68 9.6 1.6×
tyres and wheels
58 8.2 0.4×
steering and suspension
55 7.8 0.2×
fuel and exhaust
50 7.1 1.0×
Identification of the vehicle
28 3.9 2.0×
structure and attachments
23 3.2 0.5×
tyres
22 3.1 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 FXSTB 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 FXSTB.

Pass rate by registration year

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

Best year to buy used: 2004 (94.0% pass). Weakest: 1998 (85.3%).

84%90%96%1998: 85.3% pass (469 tests)1999: 86.3% pass (679 tests)2000: 86.3% pass (672 tests)2001: 87.7% pass (778 tests)2002: 89.2% pass (950 tests)2003: 88.8% pass (778 tests)2004: 94.0% pass (50 tests)2006: 85.6% pass (291 tests)2007: 86.4% pass (721 tests)2008: 85.8% pass (359 tests)2009: 89.4% pass (208 tests)199820032009

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 FXSTB FAQ

answers computed from the data above · terms in the glossary

Is the HARLEY-DAVIDSON FXSTB reliable?

The HARLEY-DAVIDSON FXSTB is more reliable than average for its class: 87.2% of its 6,065 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #1854 of 5426 models.

What does a FXSTB fail its MOT on most?

lighting and signalling — 27% of all defects recorded against failed FXSTB tests.

What is the best year of FXSTB to buy used?

By first-time pass rate, 2004-registered examples do best (94.0%) and 1998 worst (85.3%). Condition and history still trump the year.

How many miles will a FXSTB last?

The median FXSTB shows 15,768 miles at test, and examples around 50k miles still pass 83.9% of the time — mileage alone rarely kills one.