1975 Triumph Trident — MOT History by Age

How cars manufactured in 1975 perform at MOT as they age

51 years

Current Age

91.1%

Latest Pass Rate

1,330

Total Tests (All Years)

19,023 mi

Avg Mileage (Latest)

Data from official DVSA MOT testing records

Insufficient data for same-age comparison.

How This Car Ages

Pass rate progression for the 1975 Triumph Trident as it ages.

34 yrs88.0%

→ ↑1.3%

35 yrs89.3%

→ ↓1.2%

36 yrs88.1%

→ ↑1.1%

37 yrs89.2%

→ ↑3.1%

38 yrs92.3%

→ ↑1.5%

39 yrs93.8%

→ ↓5.7%

40 yrs88.1%

→ ↑5.2%

41 yrs93.3%

→ ↓1.6%

42 yrs91.7%

→ ↓0.6%

43 yrs91.1%

📊 View as table

Age	Pass Rate	Tests
34 yrs	88.0%	150
35 yrs	89.3%	140
36 yrs	88.1%	135
37 yrs	89.2%	139
38 yrs	92.3%	142
39 yrs	93.8%	128
40 yrs	88.1%	135
41 yrs	93.3%	149
42 yrs	91.7%	156
43 yrs	91.1%	56

Pass Rate Trend

How the 1975 Triumph Trident pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2018 (43 yrs)	91.1%	56
2017 (42 yrs)	91.7%	156
2016 (41 yrs)	93.3%	149
2015 (40 yrs)	88.1%	135
2014 (39 yrs)	93.8%	128
2013 (38 yrs)	92.3%	142
2012 (37 yrs)	89.2%	139
2011 (36 yrs)	88.1%	135
2010 (35 yrs)	89.3%	140
2009 (34 yrs)	88%	150

Year-by-Year MOT Results

2009

88.0%

Age (yrs) 34Tests 150Avg Mileage 21,208Top Failure Motorcycle lighting and signalling — 10.7%

2010

89.3%

Age (yrs) 35Tests 140Avg Mileage 24,613Top Failure Motorcycle lighting and signalling — 6.4%

2011

88.1%

Age (yrs) 36Tests 135Avg Mileage 24,266Top Failure Motorcycle lighting and signalling — 10.4%

2012

89.2%

Age (yrs) 37Tests 139Avg Mileage 20,406Top Failure Motorcycle lighting and signalling — 4.3%

2013

92.3%

Age (yrs) 38Tests 142Avg Mileage 22,062Top Failure Motorcycle lighting and signalling — 6.3%

2014

93.8%

Age (yrs) 39Tests 128Avg Mileage 22,356Top Failure Motorcycle lighting and signalling — 3.1%

2015

88.1%

Age (yrs) 40Tests 135Avg Mileage 22,076Top Failure Motorcycle lighting and signalling — 16.3%

2016

93.3%

Age (yrs) 41Tests 149Avg Mileage 22,616Top Failure Motorcycle lighting and signalling — 4.7%

2017

91.7%

Age (yrs) 42Tests 156Avg Mileage 21,818Top Failure Motorcycle lighting and signalling — 7.7%

2018

91.1%

Age (yrs) 43Tests 56Avg Mileage 19,023Top Failure Motorcycle lighting and signalling — 5.4%

MOT results for 1975 Triumph Trident by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	34	88.0%	150	21,208	Motorcycle lighting and signalling — 10.7%
2010	35	89.3%	140	24,613	Motorcycle lighting and signalling — 6.4%
2011	36	88.1%	135	24,266	Motorcycle lighting and signalling — 10.4%
2012	37	89.2%	139	20,406	Motorcycle lighting and signalling — 4.3%
2013	38	92.3%	142	22,062	Motorcycle lighting and signalling — 6.3%
2014	39	93.8%	128	22,356	Motorcycle lighting and signalling — 3.1%
2015	40	88.1%	135	22,076	Motorcycle lighting and signalling — 16.3%
2016	41	93.3%	149	22,616	Motorcycle lighting and signalling — 4.7%
2017	42	91.7%	156	21,818	Motorcycle lighting and signalling — 7.7%
2018	43	91.1%	56	19,023	Motorcycle lighting and signalling — 5.4%

Common MOT Failures

Top failure categories across all test years for 1975 Triumph Trident, with age trends.

Motorcycle lighting and signalling

7.5%

↓ Decreases with age

Motorcycle steering and suspension

3.6%

— Consistent

Motorcycle lamps and reflectors

3.6%

— Consistent

Motorcycle brakes

3.1%

— Consistent

Motorcycle tyres and wheels

2.1%

— Consistent

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

Category	At Youngest	At Oldest	Change	Trend
Motorcycle lighting and signalling	10.7% (34 yrs)	5.4% (43 yrs)	-5.3%	🟢 ↓
Motorcycle brakes	3.3% (34 yrs)	5.4% (43 yrs)	+2.1%	🔴 ↑
Motorcycle steering and suspension	4.0% (34 yrs)	5.4% (43 yrs)	+1.4%	⚪ —

Other Manufacture Years

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

About This Data

This page shows how Triumph Trident cars manufactured in 1975 perform at MOT as they age. Data spans from 2009 to 2018, covering 1,330 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.