BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
Model report · 2005–2025

VESPA (DOUGLAS) PK125

121cc Petrol Class 1
80.7%
first-time pass rate
14.3%
failed outright
12,543
median miles at test
161
MOT tests, 2005–2025

What fails on a PK125

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
lighting and signalling
28 34.6
brakes
17 21
steering and suspension
8 9.9
lamps and reflectors
8 9.9
tyres and wheels
5 6.2
structure and attachments
5 6.2
reg plates and vin
3 3.7
Identification of the vehicle
3 3.7
suspension
2 2.5
body and structure
2 2.5

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 PK125 beats 1 of its 4 closest rivals (PIAGGIO VESPA, HONDA PCX 125, HONDA Vision 110).

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 PK125.