Head-to-head · 2005–2025
Data as of: DVSA MOT results to 2025
Gilera RC 600 vs Yamaha FZS600
The Yamaha FZS600 passes its MOT first time more often than the Gilera RC 600: 82.6% vs 75.4%, a 7.2-point lead.
MOT reliability, side by side
first-time pass rate, outright fail rate and tests analysed · 2005–2025
| Metric | Gilera RC 600 | Yamaha FZS600 |
|---|---|---|
| First-time pass rate | 75.4% | 82.6% |
| Outright fail rate | 15.8% | 10.6% |
| Vs comparable bikes (age & mileage adjusted) | -8.0 pts | -0.8 pts |
| Engine size | 558cc | 599cc |
| Median miles at test | 21,232 | 21,612 |
| MOT tests analysed | 114 | 136,558 |
| Most common failure | lighting and signalling | 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.
"Vs comparable bikes" is the first-time pass rate minus the rate expected for each bike's own mix of age, mileage and test class, in percentage points: positive means better than comparable bikes. How this works.
See each bike's full report (trend, mileage curve, failure breakdown and rivals) on its own page.