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

PIAGGIO DOUGLAS

125cc Petrol Class 1
85.3%
first-time pass rate
9.8%
failed outright
14,326
median miles at test
184
MOT tests, 2005–2025

Pass rate by mileage

how the DOUGLAS's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage DOUGLAS passes first time 86.2% of the time; by 30k that's 87.5%.

85%87%88%0k: 86.2% pass (65 tests)10k: 87.2% pass (47 tests)30k: 87.5% pass (40 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 DOUGLAS

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
lighting and signalling
24 49
brakes
9 18.4
steering and suspension
6 12.2
tyres and wheels
2 4.1
body and structure
2 4.1
fuel and exhaust
2 4.1
lamps and reflectors
1 2
reg plates and vin
1 2
steering
1 2
Items Not Tested
1 2

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 DOUGLAS beats 4 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 DOUGLAS.