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2004 Harley Davidson Unclassified — MOT History by Age

How cars manufactured in 2004 perform at MOT as they age

22 years
Current Age
89.1%
Latest Pass Rate
707
Total Tests (All Years)
24,571 mi
Avg Mileage (Latest)

Data from official DVSA MOT testing records

Compared to Average at Age 20

This car: 89.1%
Average: 56.6%

✅ 32.5% above average (6824 models compared)

How This Car Ages

Pass rate progression for the 2004 Harley Davidson Unclassified as it ages.

5 yrs88.3%
6 yrs83.6%
7 yrs83.6%
8 yrs89.4%
9 yrs95.3%
10 yrs95.8%
11 yrs93.6%
12 yrs91.5%
13 yrs89.8%
15 yrs89.2%
17 yrs78.4%
18 yrs88.4%
19 yrs92.1%
20 yrs89.1%

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

Fail Rate %
📊 View as table
AgePass RateTests
5 yrs88.3%77
6 yrs83.6%67
7 yrs83.6%67
8 yrs89.4%47
9 yrs95.3%43
10 yrs95.8%48
11 yrs93.6%47
12 yrs91.5%47
13 yrs89.8%49
15 yrs89.2%37
17 yrs78.4%51
18 yrs88.4%43
19 yrs92.1%38
20 yrs89.1%46

Pass Rate Trend

How the 2004 Harley Davidson Unclassified pass rate changes as it ages, from first MOT to most recent.

Trend shows stable over 14 years

Pass Rate %
📊 View as table
BuiltPass RateTests
2024 (20 yrs)89.1%46
2023 (19 yrs)92.1%38
2022 (18 yrs)88.4%43
2021 (17 yrs)78.4%51
2019 (15 yrs)89.2%37
2017 (13 yrs)89.8%49
2016 (12 yrs)91.5%47
2015 (11 yrs)93.6%47
2014 (10 yrs)95.8%48
2013 (9 yrs)95.3%43
2012 (8 yrs)89.4%47
2011 (7 yrs)83.6%67
2010 (6 yrs)83.6%67
2009 (5 yrs)88.3%77

Year-by-Year MOT Results

2009
88.3%
Age (yrs) 5Tests 77Avg Mileage 10,698Top Failure Motorcycle fuel and exhaust — 5.2%
2010
83.6%
Age (yrs) 6Tests 67Avg Mileage 11,395Top Failure Motorcycle brakes — 9.0%
2011
83.6%
Age (yrs) 7Tests 67Avg Mileage 12,258Top Failure Motorcycle lighting and signalling — 6.0%
2012
89.4%
Age (yrs) 8Tests 47Avg Mileage 14,340Top Failure Motorcycle lighting and signalling — 6.4%
2013
95.3%
Age (yrs) 9Tests 43Avg Mileage 15,172Top Failure Motorcycle tyres and wheels — 4.7%
2014
95.8%
Age (yrs) 10Tests 48Avg Mileage 18,383Top Failure Motorcycle lighting and signalling — 2.1%
2015
93.6%
Age (yrs) 11Tests 47Avg Mileage 19,637Top Failure Motorcycle reg plates and vin — 6.4%
2016
91.5%
Age (yrs) 12Tests 47Avg Mileage 17,804Top Failure Motorcycle brakes — 8.5%
2017
89.8%
Age (yrs) 13Tests 49Avg Mileage 20,205Top Failure Motorcycle tyres and wheels — 10.2%
2019
89.2%
Age (yrs) 15Tests 37Avg Mileage 21,196Top Failure Motorcycle brakes — 8.1%
2021
78.4%
Age (yrs) 17Tests 51Avg Mileage 22,064Top Failure Motorcycle lamps and reflectors — 23.5%
2022
88.4%
Age (yrs) 18Tests 43Avg Mileage 24,023Top Failure Motorcycle lamps and reflectors — 9.3%
2023
92.1%
Age (yrs) 19Tests 38Avg Mileage 26,496Top Failure Motorcycle structure and attachments — 10.5%
2024
89.1%
Age (yrs) 20Tests 46Avg Mileage 24,571Top Failure Motorcycle lamps and reflectors — 6.5%

Common MOT Failures

Top failure categories across all test years for 2004 Harley Davidson Unclassified, with age trends.

Motorcycle lamps and reflectors
10.5%
— Consistent
Motorcycle structure and attachments
6.6%
↑ Increases with age
Motorcycle suspension
6.6%
↑ Increases with age
Motorcycle tyres
6.0%
↑ Increases with age
Motorcycle brakes
5.5%
— Consistent

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

CategoryAt YoungestAt OldestChangeTrend
Motorcycle brakes1.3% (5 yrs)4.3% (20 yrs)
+3.0%
🔴 ↑

Other Manufacture Years

Looking for the best year to buy? See the full comparison on the Harley Davidson Unclassified page →

About This Data

This page shows how Harley Davidson Unclassified cars manufactured in 2004 perform at MOT as they age. Data spans from 2009 to 2024, covering 707 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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