Get Started
Triumph

Triumph Bonneville — Reliability by Year

25,593 vehicles · MOT data 1980–2021 · first-test pass rates

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

✓
Best pass rate year
2021
95.0% pass rate · 362 vehicles
⚠
Lowest pass rate year
1980
87.6% pass rate · 279 vehicles
Year Pass rate Avg mileage Vehicles
2021
95.0%
3,597 mi 362
2020
94.4%
4,045 mi 1,175
2019
94.2%
4,424 mi 1,886
2018
93.7%
5,237 mi 2,607
2017
93.4%
5,532 mi 2,878
2016
92.6%
6,335 mi 2,484
2015
91.6%
5,547 mi 1,631
2014
91.7%
6,006 mi 1,404
2013
91.7%
6,599 mi 946
2012
92.7%
6,402 mi 710
2011
91.1%
7,828 mi 637
2010
91.7%
7,552 mi 831
2009
91.0%
8,725 mi 924
2008
89.5%
8,442 mi 783
2007
89.0%
8,314 mi 908
2006
89.2%
8,562 mi 935
2005
89.3%
9,831 mi 748
2004
88.9%
9,585 mi 931
2003
89.1%
9,634 mi 706
2002
89.8%
10,418 mi 533
2001
90.1%
11,009 mi 1,062
1981
89.2%
15,910 mi 233
1980
87.6%
22,004 mi 279

Which year Triumph Bonneville is most reliable?

MOT pass rate by year of manufacture — averaged across each vehicle's lifetime of tests. Green = noticeably above average for this model; red = noticeably below average.

Tests range from an average of 3,597 miles (newest year) to 22,004 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 Bonneville.

See the buying guide →

← All Triumph models

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