BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
Model report · 2005–2025
90.4%
first-time pass rate
4.1%
failed outright
13,898
median miles at test
418
MOT tests, 2005–2025

Pass rate by mileage

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

A low-mileage HD passes first time 92.3% of the time; by 20k that's 90.5%.

90%91%93%0k: 92.3% pass (168 tests)10k: 90.3% pass (103 tests)20k: 90.5% pass (74 tests)0k10k20k

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 HD

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
lighting and signalling
9 27.3
lamps and reflectors
6 18.2
brakes
5 15.2
tyres and wheels
4 12.1
reg plates and vin
2 6.1
tyres
2 6.1
body and structure
2 6.1
audible warning (Horn)
1 3
steering and suspension
1 3
fuel and exhaust
1 3

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 HD beats 4 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 HD.