Head-to-head · 2005–2025
HARLEY-DAVIDSON XLH1200 vs TRIUMPH BONNEVILLE
The TRIUMPH BONNEVILLE passes its MOT first time more often than the HARLEY-DAVIDSON XLH1200 — 89.0% vs 84.6%, a 4.4-point lead.
MOT reliability, side by side
first-time pass rate, outright fail rate and tests analysed · 2005–2025
| Metric | HARLEY-DAVIDSON XLH1200 | TRIUMPH BONNEVILLE |
|---|---|---|
| First-time pass rate | 84.6% | 89.0% |
| Outright fail rate | 7.9% | 5.0% |
| Median miles at test | 14,078 | 7,619 |
| MOT tests analysed | 10,367 | 195,256 |
| 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.
See each bike's full report — trend, mileage curve, failure breakdown and rivals — on its own page.