YAMAHA YQ 50 AERO
The pass rate is the MOT first-time pass: a roadworthiness check of the items an MOT covers (brakes, lights, tyres, steering, structure, emissions), not a full mechanical inspection of engine or gearbox internals. It is a reliability signal, not a complete measure of mechanical reliability. What this measures.
“vs expected” adjusts for age, mileage and test class, so a cherished classic and a hard-used commuter are compared fairly. How this works.
Pass rate over time
The YQ 50 AERO's first-time pass rate has risen 2.4 points since 2006, 44.4% to 46.8%.
What fails on a YQ 50 AERO
| Component group | Share of defects | Defects | % of defects |
|---|---|---|---|
| lighting and signalling |
|
108 | 40.9 |
| steering and suspension |
|
60 | 22.7 |
| brakes |
|
47 | 17.8 |
| fuel and exhaust |
|
15 | 5.7 |
| tyres and wheels |
|
14 | 5.3 |
| body and structure |
|
14 | 5.3 |
| Items Not Tested |
|
3 | 1.1 |
| driving controls |
|
2 | 0.8 |
| reg plates and vin |
|
1 | 0.4 |
Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects.
How rivals compare
On first-time pass rate the YQ 50 AERO beats 0 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 YQ 50 AERO.
Compare with any bike
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