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

YAMAHA QT

49cc Petrol Class 1
85.7%
first-time pass rate
11.4%
failed outright
3,821
median miles at test
105
MOT tests, 2005–2025

What fails on a QT

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
lighting and signalling
10 45.5
brakes
5 22.7
lamps and reflectors
3 13.6
fuel and exhaust
2 9.1
tyres and wheels
2 9.1

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 QT 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 QT.