Pass rate over time
The C50LAC's first-time pass rate has risen 10.7 points since 2006, 79.6% to 90.3%.
Pass rate by mileage
A low-mileage C50LAC passes first time 85.4% of the time; by 30k that's 71.9%.
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 C50LAC
| Component group | Share of defects | Defects | % of defects |
|---|---|---|---|
| lighting and signalling |
|
66 | 42.3 |
| tyres and wheels |
|
27 | 17.3 |
| steering and suspension |
|
22 | 14.1 |
| brakes |
|
22 | 14.1 |
| body and structure |
|
6 | 3.8 |
| fuel and exhaust |
|
4 | 2.6 |
| drive system |
|
4 | 2.6 |
| reg plates and vin |
|
2 | 1.3 |
| driving controls |
|
2 | 1.3 |
| steering |
|
1 | 0.6 |
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 C50LAC 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 C50LAC.
Pass rate by registration year
Best year to buy used: 1984 (86.7% pass). Weakest: 1983 (83.0%).
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.