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2004 Triumph Bonneville — MOT History by Age

How cars manufactured in 2004 perform at MOT as they age

22 years
Current Age
86.1%
Latest Pass Rate
8,749
Total Tests (All Years)
17,845 mi
Avg Mileage (Latest)

Data from official DVSA MOT testing records

Compared to Average at Age 20

This car: 86.1%
Average: 56.6%

✅ 29.5% above average (6824 models compared)

How This Car Ages

Pass rate progression for the 2004 Triumph Bonneville as it ages.

5 yrs84.6%
6 yrs88.2%
7 yrs84.1%
8 yrs85.5%
9 yrs86.9%
10 yrs86.0%
11 yrs86.2%
12 yrs85.5%
13 yrs87.3%
14 yrs88.5%
15 yrs85.3%
16 yrs87.2%
17 yrs84.3%
18 yrs86.1%
19 yrs85.2%
20 yrs86.1%

Bar chart showing pass rate by car age from 5 to 20 years

Fail Rate %
📊 View as table
AgePass RateTests
5 yrs84.6%777
6 yrs88.2%694
7 yrs84.1%697
8 yrs85.5%663
9 yrs86.9%648
10 yrs86.0%634
11 yrs86.2%600
12 yrs85.5%579
13 yrs87.3%569
14 yrs88.5%384
15 yrs85.3%394
16 yrs87.2%337
17 yrs84.3%484
18 yrs86.1%404
19 yrs85.2%452
20 yrs86.1%433

Pass Rate Trend

How the 2004 Triumph Bonneville pass rate changes as it ages, from first MOT to most recent.

Trend shows stable over 16 years

Pass Rate %
📊 View as table
BuiltPass RateTests
2024 (20 yrs)86.1%433
2023 (19 yrs)85.2%452
2022 (18 yrs)86.1%404
2021 (17 yrs)84.3%484
2020 (16 yrs)87.2%337
2019 (15 yrs)85.3%394
2018 (14 yrs)88.5%384
2017 (13 yrs)87.3%569
2016 (12 yrs)85.5%579
2015 (11 yrs)86.2%600
2014 (10 yrs)86%634
2013 (9 yrs)86.9%648
2012 (8 yrs)85.5%663
2011 (7 yrs)84.1%697
2010 (6 yrs)88.2%694
2009 (5 yrs)84.6%777

Year-by-Year MOT Results

2009
84.6%
Age (yrs) 5Tests 777Avg Mileage 8,450Top Failure Motorcycle brakes — 7.5%
2010
88.2%
Age (yrs) 6Tests 694Avg Mileage 9,299Top Failure Motorcycle lighting and signalling — 6.1%
2011
84.1%
Age (yrs) 7Tests 697Avg Mileage 10,511Top Failure Motorcycle brakes — 8.5%
2012
85.5%
Age (yrs) 8Tests 663Avg Mileage 11,583Top Failure Motorcycle lighting and signalling — 7.2%
2013
86.9%
Age (yrs) 9Tests 648Avg Mileage 12,349Top Failure Motorcycle brakes — 7.6%
2014
86.0%
Age (yrs) 10Tests 634Avg Mileage 13,523Top Failure Motorcycle brakes — 8.2%
2015
86.2%
Age (yrs) 11Tests 600Avg Mileage 14,224Top Failure Motorcycle lighting and signalling — 9.2%
2016
85.5%
Age (yrs) 12Tests 579Avg Mileage 14,647Top Failure Motorcycle lighting and signalling — 9.8%
2017
87.3%
Age (yrs) 13Tests 569Avg Mileage 15,059Top Failure Motorcycle lighting and signalling — 9.0%
2018
88.5%
Age (yrs) 14Tests 384Avg Mileage 16,873Top Failure Motorcycle brakes — 5.7%
2019
85.3%
Age (yrs) 15Tests 394Avg Mileage 15,316Top Failure Motorcycle lamps and reflectors — 10.4%
2020
87.2%
Age (yrs) 16Tests 337Avg Mileage 17,209Top Failure Motorcycle lamps and reflectors — 8.6%
2021
84.3%
Age (yrs) 17Tests 484Avg Mileage 16,915Top Failure Motorcycle lamps and reflectors — 12.2%
2022
86.1%
Age (yrs) 18Tests 404Avg Mileage 17,722Top Failure Motorcycle lamps and reflectors — 10.1%
2023
85.2%
Age (yrs) 19Tests 452Avg Mileage 17,584Top Failure Motorcycle lamps and reflectors — 11.1%
2024
86.1%
Age (yrs) 20Tests 433Avg Mileage 17,845Top Failure Motorcycle brakes — 10.4%

Common MOT Failures

Top failure categories across all test years for 2004 Triumph Bonneville, with age trends.

Motorcycle lamps and reflectors
9.5%
↑ Increases with age
Motorcycle brakes
7.8%
— Consistent
Motorcycle lighting and signalling
7.0%
↓ Decreases with age
Motorcycle tyres and wheels
4.3%
— Consistent
Motorcycle structure and attachments
4.3%
— Consistent

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

CategoryAt YoungestAt OldestChangeTrend
Motorcycle brakes7.5% (5 yrs)10.4% (20 yrs)
+2.9%
🔴 ↑

Other Manufacture Years

Looking for the best year to buy? See the full comparison on the Triumph Bonneville page →

About This Data

This page shows how Triumph Bonneville cars manufactured in 2004 perform at MOT as they age. Data spans from 2009 to 2024, covering 8,749 tests. Pass rates naturally decline with age as components wear.

Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.

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