BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ ADLY/CITYBIRD 50
Model report · 2005–2025

ADLY CITYBIRD 50

49cc Petrol Class 1
80.7%
first-time pass rate
16.9%
failed outright
5,502
median miles at test
83
MOT tests, 2005–2025

What fails on a CITYBIRD 50

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
brakes
16 34
steering and suspension
10 21.3
fuel and exhaust
5 10.6
lighting and signalling
4 8.5
tyres and wheels
4 8.5
lamps and reflectors
3 6.4
Items Not Tested
3 6.4
steering
1 2.1
driving controls
1 2.1

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 CITYBIRD 50 beats 4 of its 4 closest rivals (PEUGEOT SPEEDFIGHT, PIAGGIO ZIP, PIAGGIO NRG).

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 CITYBIRD 50.