Head-to-head · 2005–2025
Triumph Bonneville T100 Bud Ekins vs Harley-Davidson XL
The Triumph Bonneville T100 Bud Ekins passes its MOT first time more often than the Harley-Davidson XL — 94.4% vs 87.9%, a 6.5-point lead.
MOT reliability, side by side
first-time pass rate, outright fail rate and tests analysed · 2005–2025
| Metric | Triumph Bonneville T100 Bud Ekins | Harley-Davidson XL |
|---|---|---|
| First-time pass rate | 94.4% | 87.9% |
| Outright fail rate | 1.9% | 5.3% |
| Median miles at test | 3,125 | 6,108 |
| MOT tests analysed | 161 | 18,541 |
| Most common failure | tyres | 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.
TRIUMPH
BONNEVILLE T100 BUD EKINS
94.4% pass · 161 tests
HARLEY-DAVIDSON
XL
87.9% pass · 18.5k tests
See each bike's full report — trend, mileage curve, failure breakdown and rivals — on its own page.