BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
Model report · 2005–2025
87.0%
first-time pass rate
6.8%
failed outright
15,259
median miles at test
207
MOT tests, 2005–2025

Pass rate by mileage

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

A low-mileage FXSTSB passes first time 91.3% of the time; by 30k that's 86.7%.

82%87%93%0k: 91.3% pass (46 tests)10k: 83.6% pass (61 tests)30k: 86.7% pass (30 tests)0k10k30k

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 FXSTSB

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
lamps and reflectors
7 21.9
lighting and signalling
7 21.9
Identification of the vehicle
4 12.5
tyres
4 12.5
tyres and wheels
3 9.4
brakes
2 6.2
audible warning (Horn)
2 6.2
reg plates and vin
1 3.1
suspension
1 3.1
drive system
1 3.1

Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects.

How rivals compare

same type, similar capacity, high test volume

On first-time pass rate the FXSTSB 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 FXSTSB.

Pass rate by registration year

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

Best year to buy used: 1996 (87.0% pass). Weakest: 1996 (87.0%).

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.