What year Triumph Bonneville Street Twin is most reliable?

Based on MOT first-test pass rates, the 2022 Triumph Bonneville Street Twin has the highest pass rate at 96.3%, out of 342 vehicles tested.

What are the most common Triumph Bonneville Street Twin MOT failures?

The most common Triumph Bonneville Street Twin MOT failures vary by year. Check the individual year pages for detailed defect breakdowns — links in the table above.

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Triumph Bonneville Street Twin — Reliability by Year

555 vehicles · MOT data 2021–2022 · first-test pass rates

This page shows MOT first-test pass rates for each year the Triumph Bonneville Street Twin was manufactured — click any year to explore that cohort in detail. Trying to decide which year to buy? See the full buying guide →

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Best pass rate year

2022

96.3% pass rate · 342 vehicles

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Lowest pass rate year

2021

96.2% pass rate · 213 vehicles

Year	Pass rate	Avg mileage	Vehicles
2022	96.3%	3,947 mi	342
2021	96.2%	4,747 mi	213

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