Data as of: DVSA MOT results to 2025
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 AY50WR's first-time pass rate has fallen 18.9 points since 2005, 75.7% to 56.8%.
What fails on a AY50WR
| Component group | Share of defects | Defects | % of defects | vs all bikes |
|---|---|---|---|---|
| lighting and signalling |
|
185 | 35.3 | 3.5× |
| steering and suspension |
|
141 | 26.9 | 4.0× |
| brakes |
|
99 | 18.9 | 2.2× |
| tyres and wheels |
|
36 | 6.9 | 1.7× |
| fuel and exhaust |
|
31 | 5.9 | 4.6× |
| body and structure |
|
14 | 2.7 | 3.3× |
| Items Not Tested |
|
7 | 1.3 | 3.9× |
| reg plates and vin |
|
5 | 1 | 1.1× |
| driving controls |
|
5 | 1 | 2.6× |
| lamps and reflectors |
|
1 | 0.2 | 0.1× |
Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects. "vs all bikes" is how often this model's tests record a defect in the group, as a multiple of the all-bike rate.
How rivals compare
On first-time pass rate the AY50WR beats 2 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 AY50WR.
Compare with any bike
More SUZUKI models
Pass rate by registration year
Highest pass rate: 2000 (72.9%). Lowest: 2002 (63.6%). Every AY50WR year compared →
First-time pass rate by the year each bike was first registered (cohorts with ≥ 50 tests). Older cohorts are survivors: the worst examples have already left the road, which tends to lift the earliest years.
SUZUKI AY50WR FAQ
Is the SUZUKI AY50WR reliable?
The SUZUKI AY50WR is less reliable than average for its class: 68.1% of its 827 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #4850 of 5428 models.
What does a AY50WR fail its MOT on most?
lighting and signalling: 35% of all defects recorded against failed AY50WR tests.
What is the best year of AY50WR to buy used?
By first-time pass rate, 2000-registered examples do best (72.9%) and 2002 worst (63.6%). Condition and history still trump the year.
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