Head-to-head · 2005–2025
Gilera Dna 50 vs Piaggio NRG
The Piaggio NRG passes its MOT first time more often than the Gilera Dna 50 — 65.5% vs 61.6%, a 3.9-point lead.
MOT reliability, side by side
first-time pass rate, outright fail rate and tests analysed · 2005–2025
| Metric | Gilera Dna 50 | Piaggio NRG |
|---|---|---|
| First-time pass rate | 61.6% | 65.5% |
| Outright fail rate | 31.1% | 27.4% |
| Median miles at test | 7,116 | 9,874 |
| MOT tests analysed | 1,502 | 40,458 |
| 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.
See each bike's full report — trend, mileage curve, failure breakdown and rivals — on its own page.