Head-to-head · 2005–2025
Data as of: DVSA MOT results to 2025
Yamaha XT550 vs Suzuki SV650S
The Suzuki SV650S passes its MOT first time more often than the Yamaha XT550: 80.6% vs 80.0%, a 0.6-point lead.
MOT reliability, side by side
first-time pass rate, outright fail rate and tests analysed · 2005–2025
| Metric | Yamaha XT550 | Suzuki SV650S |
|---|---|---|
| First-time pass rate | 80.0% | 80.6% |
| Outright fail rate | 10.8% | 11.9% |
| Median miles at test | 26,341 | 16,958 |
| MOT tests analysed | 1,002 | 84,632 |
| 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.