Data as of: DVSA MOT results to 2025
Lambretta GP225 vs Piaggio X9
The Lambretta GP225 passes its MOT first time more often than the Piaggio X9: 87.6% vs 77.0%, a 10.6-point lead.
MOT reliability, side by side
| Metric | Lambretta GP225 | Piaggio X9 |
|---|---|---|
| First-time pass rate | 87.6% | 77.0% |
| Outright fail rate | 5.9% | 17.5% |
| Vs comparable bikes (age & mileage adjusted) | +3.4 pts | -4.4 pts |
| Engine size | 225cc | 244cc |
| Rank among all models | #1725 of 5428 | #4065 of 5428 |
| Median miles at test | 1,806 | 12,186 |
| MOT tests analysed | 627 | 21,703 |
| Most common failure | brakes | steering and suspension |
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 | Lambretta GP225 | Piaggio X9 |
|---|---|---|
| Lights & signalling | 3.0% | 7.3% |
| Brakes | 2.7% | 6.5% |
| Steering & suspension | 1.4% | 7.5% |
| Tyres & wheels | 0.6% | 4.2% |
| Fuel & exhaust | 0% | 1.8% |
| Structure & body | 0.3% | 0.8% |
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 | Lambretta GP225 | Piaggio X9 |
|---|---|---|
| 2010 | 83.7% | 75.1% |
| 2011 | 89.6% | 75.7% |
| 2012 | 86.8% | 74.8% |
| 2013 | 87.0% | 74.1% |
| 2014 | 92.3% | 75.5% |
| 2015 | 95.5% | 76.1% |
| 2016 | 85.0% | 76.3% |
| 2017 | 89.5% | 76.3% |
Each year mixes bikes of different ages, so a fleet that is getting older tends to slip.
Lambretta GP225 vs Piaggio X9 FAQ
Which is more reliable, the Lambretta GP225 or the Piaggio X9?
The Lambretta GP225 passes its MOT first time more often than the Piaggio X9: 87.6% vs 77.0%, a 10.6-point lead. Adjusted for age, mileage and test class, the Lambretta GP225 still comes out ahead: +3.4 points vs comparable bikes for the Lambretta GP225, -4.4 for the Piaggio X9. An MOT checks roadworthiness items, not engine or gearbox internals.
What does the Lambretta GP225 fail its MOT on most?
Lights & signalling: 3.0% of Lambretta GP225 MOT tests failed on it, then brakes (2.7%).
What does the Piaggio X9 fail its MOT on most?
Steering & suspension: 7.5% of Piaggio X9 MOT tests failed on it, then lights & signalling (7.3%).
See each bike's full report (trend, mileage curve, failure breakdown and rivals) on its own page.