What year Triumph Tr7 Convertible is most reliable?

Based on MOT first-test pass rates, the 1981 Triumph Tr7 Convertible has the highest pass rate at 70.2%, out of 1,056 vehicles tested.

What are the most common Triumph Tr7 Convertible MOT failures?

The most common Triumph Tr7 Convertible MOT failures vary by year. Check the individual year pages for detailed defect breakdowns — links in the table above.

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Triumph Tr7 Convertible — Reliability by Year

3,137 vehicles · MOT data 1980–1982 · first-test pass rates

This page shows MOT first-test pass rates for each year the Triumph Tr7 Convertible 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

1981

70.2% pass rate · 1,056 vehicles

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Lowest pass rate year

1980

67.0% pass rate · 1,411 vehicles

Year	Pass rate	Avg mileage	Vehicles
1982	67.8%	64,643 mi	670
1981	70.2%	57,333 mi	1,056
1980	67.0%	60,290 mi	1,411

Which year Triumph Tr7 Convertible is most reliable?

MOT pass rate by year of manufacture — averaged across each vehicle's lifetime of tests.

Tests range from an average of 57,333 miles (newest year) to 64,643 miles (oldest year). Older years naturally accumulate more tests at higher mileages — see the mileage-normalised breakdown →

Trying to decide which year to buy?

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 Tr7 Convertible.

See the buying guide →

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Check any UK registration — free MOT history and risk insights.