Data as of: DVSA MOT results to 2025
Vespa PX200 vs Lambretta LI150
The Lambretta LI150 passes its MOT first time more often than the Vespa PX200: 88.8% vs 83.3%, a 5.5-point lead.
MOT reliability, side by side
| Metric | Vespa PX200 | Lambretta LI150 |
|---|---|---|
| First-time pass rate | 83.3% | 88.8% |
| Outright fail rate | 9.7% | 5.9% |
| Vs comparable bikes (age & mileage adjusted) | +5.9 pts | +6.4 pts |
| Engine size | 198cc | 150cc |
| Rank among all models | #2895 of 5428 | #1332 of 5428 |
| Median miles at test | 15,462 | 2,944 |
| MOT tests analysed | 598 | 19,294 |
| Most common failure | lighting and signalling | lighting and signalling |
First-time outcomes on normal tests, 2005–2025. "Most common failure" is the component group with the most recorded defects on failed tests. Read pass rates against test counts: a smaller sample is noisier. Source: DVSA anonymised MOT results.
"Vs comparable bikes" is the first-time pass rate minus the rate expected for each bike's own mix of age, mileage and test class, in percentage points: positive means better than comparable bikes. How this works.
What fails, side by side
| Component | Vespa PX200 | Lambretta LI150 |
|---|---|---|
| Lights & signalling | 5.7% | 3.3% |
| Brakes | 2.8% | 2.1% |
| Steering & suspension | 2.3% | 1.8% |
| Tyres & wheels | 1.8% | 0.9% |
| Structure & body | 1.3% | 0.2% |
| Fuel & exhaust | 1.0% | 0.3% |
A test that fails on two components counts once in each. Component links go to the bikes most likely to fail on it.
Pass rate by test year
| Test year | Vespa PX200 | Lambretta LI150 |
|---|---|---|
| 2010 | 75.0% | 87.5% |
| 2011 | 82.4% | 87.6% |
| 2015 | 93.9% | 90.1% |
| 2016 | 91.4% | 91.4% |
| 2017 | 90.9% | 90.6% |
| 2021 | 87.9% | 94.3% |
| 2023 | 76.3% | 90.8% |
| 2024 | 93.3% | 95.9% |
Each year mixes bikes of different ages, so a fleet that is getting older tends to slip.
Pass rate by mileage
| Mileage | Vespa PX200 | Lambretta LI150 |
|---|---|---|
| 0k-10k miles | 87.6% | 88.8% |
| 10k-20k miles | 79.6% | 89.8% |
| 20k-30k miles | 85.7% | 87.0% |
| 30k-40k miles | 84.4% | 88.2% |
| 40k-50k miles | 83.3% | 88.8% |
Bands with fewer than 30 tests for either bike are left out.
Vespa PX200 vs Lambretta LI150 FAQ
Which is more reliable, the Vespa PX200 or the Lambretta LI150?
The Lambretta LI150 passes its MOT first time more often than the Vespa PX200: 88.8% vs 83.3%, a 5.5-point lead. Adjusted for age, mileage and test class the two are level (+5.9 vs +6.4 points against comparable bikes), so the raw gap is mostly down to how old and how used each fleet is. An MOT checks roadworthiness items, not engine or gearbox internals.
What does the Vespa PX200 fail its MOT on most?
Lights & signalling: 5.7% of Vespa PX200 MOT tests failed on it, then brakes (2.8%).
What does the Lambretta LI150 fail its MOT on most?
Lights & signalling: 3.3% of Lambretta LI150 MOT tests failed on it, then brakes (2.1%).
Which holds up better at high mileage, the Vespa PX200 or the Lambretta LI150?
At 40k-50k miles the Lambretta LI150 passes first time more often: 83.3% for the Vespa PX200 vs 88.8% for the Lambretta LI150.
See each bike's full report (trend, mileage curve, failure breakdown and rivals) on its own page.