Pass rate over time
The 50's first-time pass rate has fallen 21.5 points since 2006, 79.6% to 58.1%.
Pass rate by mileage
A low-mileage 50 passes first time 87.4% of the time; by 20k that's 52.6%.
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 50
| Component group | Share of defects | Defects | % of defects |
|---|---|---|---|
| lighting and signalling |
|
91 | 38.2 |
| steering and suspension |
|
57 | 23.9 |
| brakes |
|
34 | 14.3 |
| fuel and exhaust |
|
19 | 8 |
| drive system |
|
13 | 5.5 |
| tyres and wheels |
|
12 | 5 |
| reg plates and vin |
|
5 | 2.1 |
| Items Not Tested |
|
3 | 1.3 |
| body and structure |
|
3 | 1.3 |
| lamps and reflectors |
|
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 50 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 50.
Pass rate by registration year
Best year to buy used: 2000 (71.0% pass). Weakest: 2001 (62.7%).
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.