What year Triumph Rocket Iii is most reliable?

Based on MOT first-test pass rates, the 2011 Triumph Rocket Iii has the highest pass rate at 92.5%, out of 116 vehicles tested.

What are the most common Triumph Rocket Iii MOT failures?

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

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Triumph Rocket Iii — Reliability by Year

1,469 vehicles · MOT data 2004–2011 · first-test pass rates

This page shows MOT first-test pass rates for each year the Triumph Rocket Iii 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

2011

92.5% pass rate · 116 vehicles

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Lowest pass rate year

2004

89.7% pass rate · 246 vehicles

Year	Pass rate	Avg mileage	Vehicles
2011	92.5%	13,103 mi	116
2010	92.2%	11,861 mi	183
2009	90.4%	11,958 mi	156
2008	89.7%	11,575 mi	151
2007	90.4%	12,591 mi	177
2006	90.2%	13,223 mi	210
2005	90.7%	13,066 mi	230
2004	89.7%	14,674 mi	246

Which year Triumph Rocket Iii is most reliable?

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

Tests range from an average of 11,575 miles (newest year) to 14,674 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 Rocket Iii.

See the buying guide →

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