Head-to-head · 2005–2025
KAWASAKI Z650 vs TRIUMPH STREET TRIPLE R
The TRIUMPH STREET TRIPLE R passes its MOT first time more often than the KAWASAKI Z650 — 87.7% vs 81.6%, a 6.1-point lead.
MOT reliability, side by side
first-time pass rate, outright fail rate and tests analysed · 2005–2025
| Metric | KAWASAKI Z650 | TRIUMPH STREET TRIPLE R |
|---|---|---|
| First-time pass rate | 81.6% | 87.7% |
| Outright fail rate | 9.2% | 6.0% |
| Median miles at test | 32,631 | 10,588 |
| MOT tests analysed | 7,430 | 20,614 |
| Most common failure | lighting and signalling | lamps and reflectors |
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.