What year Triumph Thunderbird 1600 is most reliable?

Based on MOT first-test pass rates, the 2011 Triumph Thunderbird 1600 has the highest pass rate at 89.1%, out of 127 vehicles tested.

What are the most common Triumph Thunderbird 1600 MOT failures?

The most common Triumph Thunderbird 1600 MOT failures vary by year. Check the individual year pages for detailed defect breakdowns — links in the table above.

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Triumph Thunderbird 1600 — Reliability by Year

464 vehicles · MOT data 2009–2011 · first-test pass rates

Best pass rate year

2011

89.1% first-test pass rate · 127 vehicles

Lowest pass rate year

2009

77.4% first-test pass rate · 178 vehicles

Year	Pass rate	Avg mileage	Vehicles
2011	89.1%	9,308 mi	127
2010	85.0%	11,145 mi	159
2009	77.4%	12,733 mi	178

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