Head-to-head · 2005–2025
Ducati ST4 vs Suzuki GSF1200
The Ducati ST4 passes its MOT first time more often than the Suzuki GSF1200 — 84.0% vs 82.4%, a 1.6-point lead.
MOT reliability, side by side
first-time pass rate, outright fail rate and tests analysed · 2005–2025
| Metric | Ducati ST4 | Suzuki GSF1200 |
|---|---|---|
| First-time pass rate | 84.0% | 82.4% |
| Outright fail rate | 9.5% | 8.9% |
| Median miles at test | 18,179 | 20,274 |
| MOT tests analysed | 4,934 | 97,637 |
| 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.