Head-to-head · 2005–2025
KTM 640 Duke Ii vs Triumph Street Triple R
The Triumph Street Triple R passes its MOT first time more often than the KTM 640 Duke Ii — 87.7% vs 80.6%, a 7.1-point lead.
MOT reliability, side by side
first-time pass rate, outright fail rate and tests analysed · 2005–2025
| Metric | KTM 640 Duke Ii | Triumph Street Triple R |
|---|---|---|
| First-time pass rate | 80.6% | 87.7% |
| Outright fail rate | 9.9% | 6.0% |
| Median miles at test | 8,889 | 10,588 |
| MOT tests analysed | 4,182 | 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.