VESPA (DOUGLAS) SS180
Pass rate by mileage
A low-mileage SS180 passes first time 90.6% of the time; by 30k that's 90.0%.
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 SS180
| Component group | Share of defects | Defects | % of defects |
|---|---|---|---|
| lighting and signalling |
|
5 | 38.5 |
| steering and suspension |
|
3 | 23.1 |
| brakes |
|
2 | 15.4 |
| tyres and wheels |
|
2 | 15.4 |
| steering and suspension |
|
1 | 7.7 |
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 SS180 beats 4 of its 4 closest rivals (PIAGGIO PX 200 E, LAMBRETTA GP200, LAMBRETTA LI150).
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 SS180.
Pass rate by registration year
Best year to buy used: 1966 (98.0% pass). Weakest: 1965 (92.5%).
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.