1977 Triumph Trident — MOT History by Age

How cars manufactured in 1977 perform at MOT as they age

49 years

Current Age

86.7%

Latest Pass Rate

356

Total Tests (All Years)

22,150 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 1977 Triumph Trident as it ages.

32 yrs89.8%

→ ↑1.1%

33 yrs90.9%

→ ↑0.2%

34 yrs91.1%

→ ↓8.6%

35 yrs82.5%

→ ↓3.9%

36 yrs78.6%

→ ↑15.5%

37 yrs94.1%

→ ↓6.9%

38 yrs87.2%

→ ↑9.8%

39 yrs97.0%

→ ↓10.3%

40 yrs86.7%

📊 View as table

Age	Pass Rate	Tests
32 yrs	89.8%	49
33 yrs	90.9%	44
34 yrs	91.1%	45
35 yrs	82.5%	40
36 yrs	78.6%	42
37 yrs	94.1%	34
38 yrs	87.2%	39
39 yrs	97.0%	33
40 yrs	86.7%	30

Pass Rate Trend

How the 1977 Triumph Trident pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2017 (40 yrs)	86.7%	30
2016 (39 yrs)	97%	33
2015 (38 yrs)	87.2%	39
2014 (37 yrs)	94.1%	34
2013 (36 yrs)	78.6%	42
2012 (35 yrs)	82.5%	40
2011 (34 yrs)	91.1%	45
2010 (33 yrs)	90.9%	44
2009 (32 yrs)	89.8%	49

Year-by-Year MOT Results

2009

89.8%

Age (yrs) 32Tests 49Avg Mileage 22,582Top Failure Motorcycle steering and suspension — 6.1%

2010

90.9%

Age (yrs) 33Tests 44Avg Mileage 23,734Top Failure Motorcycle lighting and signalling — 9.1%

2011

91.1%

Age (yrs) 34Tests 45Avg Mileage 24,436Top Failure Motorcycle lighting and signalling — 4.4%

2012

82.5%

Age (yrs) 35Tests 40Avg Mileage 23,768Top Failure Motorcycle lighting and signalling — 17.5%

2013

78.6%

Age (yrs) 36Tests 42Avg Mileage 24,742Top Failure Motorcycle lighting and signalling — 19.0%

2014

94.1%

Age (yrs) 37Tests 34Avg Mileage 22,895Top Failure Motorcycle lighting and signalling — 8.8%

2015

87.2%

Age (yrs) 38Tests 39Avg Mileage 21,655Top Failure Motorcycle lighting and signalling — 15.4%

2016

97.0%

Age (yrs) 39Tests 33Avg Mileage 23,567Top Failure Motorcycle steering and suspension — 3.0%

2017

86.7%

Age (yrs) 40Tests 30Avg Mileage 22,150Top Failure Motorcycle brakes — 6.7%

MOT results for 1977 Triumph Trident by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	32	89.8%	49	22,582	Motorcycle steering and suspension — 6.1%
2010	33	90.9%	44	23,734	Motorcycle lighting and signalling — 9.1%
2011	34	91.1%	45	24,436	Motorcycle lighting and signalling — 4.4%
2012	35	82.5%	40	23,768	Motorcycle lighting and signalling — 17.5%
2013	36	78.6%	42	24,742	Motorcycle lighting and signalling — 19.0%
2014	37	94.1%	34	22,895	Motorcycle lighting and signalling — 8.8%
2015	38	87.2%	39	21,655	Motorcycle lighting and signalling — 15.4%
2016	39	97.0%	33	23,567	Motorcycle steering and suspension — 3.0%
2017	40	86.7%	30	22,150	Motorcycle brakes — 6.7%

Common MOT Failures

Top failure categories across all test years for 1977 Triumph Trident, with age trends.

Motorcycle lighting and signalling

10.4%

↑ Increases with age

Motorcycle brakes

4.6%

↑ Increases with age

Motorcycle steering and suspension

4.2%

↓ Decreases with age

Motorcycle body and structure

3.2%

— Consistent

Motorcycle drive system

2.6%

— Consistent

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

Category	At Youngest	At Oldest	Change	Trend
Motorcycle brakes	2.0% (32 yrs)	6.7% (40 yrs)	+4.7%	🔴 ↑
Motorcycle lighting and signalling	2.0% (32 yrs)	6.7% (40 yrs)	+4.7%	🔴 ↑

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 1977 perform at MOT as they age. Data spans from 2009 to 2017, covering 356 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.