Head-to-head · 2005–2025
Mash XY vs Suzuki GS500
The Mash XY passes its MOT first time more often than the Suzuki GS500 — 86.4% vs 76.4%, a 10.0-point lead.
MOT reliability, side by side
first-time pass rate, outright fail rate and tests analysed · 2005–2025
| Metric | Mash XY | Suzuki GS500 |
|---|---|---|
| First-time pass rate | 86.4% | 76.4% |
| Outright fail rate | 6.0% | 15.0% |
| Median miles at test | 4,544 | 21,676 |
| MOT tests analysed | 653 | 44,924 |
| Most common failure | lamps and reflectors | brakes |
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.