Triumph Bonneville T100 — Reliability by Year
1,226 vehicles · MOT data 2003–2025 · first-test pass rates
This page shows MOT first-test pass rates for each year the Triumph Bonneville T100 was manufactured — click any year to explore that cohort in detail. Trying to decide which year to buy? See the full buying guide →
* UK vehicles require their first MOT at 3 years old. Recent model years shown in grey have little or no MOT test data yet — pass rate data will build up as those vehicles mature.
Which year Triumph Bonneville T100 is most reliable?
MOT pass rate by year of manufacture — averaged across each vehicle's lifetime of tests.
Tests range from an average of 3,490 miles (newest year) to 8,763 miles (oldest year). Older years naturally accumulate more tests at higher mileages — see the mileage-normalised breakdown →
We've done the full analysis — which years to look for, which to avoid, and where to find the best value for reliability on a Triumph Bonneville T100.
Check any UK registration — free MOT history and risk insights.