BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
Model report · 2005–2025
82.0%
first-time pass rate
11.6%
failed outright
15,634
median miles at test
233
MOT tests, 2005–2025

Pass rate by mileage

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

A low-mileage HARLEY passes first time 80.8% of the time; by 20k that's 78.4%.

78%81%84%0k: 80.8% pass (52 tests)10k: 82.9% pass (105 tests)20k: 78.4% pass (51 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 HARLEY

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
lighting and signalling
19 35.8
brakes
7 13.2
tyres and wheels
6 11.3
fuel and exhaust
5 9.4
lamps and reflectors
3 5.7
drive system
3 5.7
steering and suspension
3 5.7
Items Not Tested
3 5.7
driving controls
2 3.8
reg plates and vin
2 3.8

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 HARLEY beats 0 of its 4 closest rivals (TRIUMPH BONNEVILLE, TRIUMPH THUNDERBIRD, HARLEY-DAVIDSON XLH 883).

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 HARLEY.