Head-to-head · 2005–2025
HONDA C90 vs YAMAHA YN100
The HONDA C90 passes its MOT first time more often than the YAMAHA YN100 — 79.3% vs 70.2%, a 9.1-point lead.
MOT reliability, side by side
first-time pass rate, outright fail rate and tests analysed · 2005–2025
| Metric | HONDA C90 | YAMAHA YN100 |
|---|---|---|
| First-time pass rate | 79.3% | 70.2% |
| Outright fail rate | 12.6% | 21.0% |
| Median miles at test | 17,744 | 7,689 |
| MOT tests analysed | 92,772 | 5,341 |
| 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.