Data as of: DVSA MOT results to 2025
Royal Alloy TG 125 LC vs Piaggio Vespa
The Royal Alloy TG 125 LC passes its MOT first time more often than the Piaggio Vespa: 88.0% vs 80.7%, a 7.3-point lead.
MOT reliability, side by side
| Metric | Royal Alloy TG 125 LC | Piaggio Vespa |
|---|---|---|
| First-time pass rate | 88.0% | 80.7% |
| Outright fail rate | 8.7% | 12.2% |
| Vs comparable bikes (age & mileage adjusted) | +9.3 pts | +5.9 pts |
| Engine size | 125cc | 124cc |
| Rank among all models | #1604 of 5428 | #3439 of 5428 |
| Median miles at test | 2,906 | 10,023 |
| MOT tests analysed | 208 | 287,482 |
| Most common failure | lamps and reflectors | 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.
See each bike's full report (trend, mileage curve, failure breakdown and rivals) on its own page.