1979 Triumph T140 — MOT History by Age

How cars manufactured in 1979 perform at MOT as they age

47 years

Current Age

90.6%

Latest Pass Rate

546

Total Tests (All Years)

20,805 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 1979 Triumph T140 as it ages.

30 yrs79.0%

→ ↑5.4%

31 yrs84.4%

→ ↓6.3%

32 yrs78.1%

→ ↑16.0%

33 yrs94.1%

→ ↓17.2%

34 yrs76.9%

→ ↑15.8%

35 yrs92.7%

→ ↓2.9%

36 yrs89.8%

→ ↓2.5%

37 yrs87.3%

→ ↓4.6%

38 yrs82.7%

→ ↑7.9%

39 yrs90.6%

📊 View as table

Age	Pass Rate	Tests
30 yrs	79.0%	62
31 yrs	84.4%	64
32 yrs	78.1%	64
33 yrs	94.1%	51
34 yrs	76.9%	52
35 yrs	92.7%	55
36 yrs	89.8%	59
37 yrs	87.3%	55
38 yrs	82.7%	52
39 yrs	90.6%	32

Pass Rate Trend

How the 1979 Triumph T140 pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2018 (39 yrs)	90.6%	32
2017 (38 yrs)	82.7%	52
2016 (37 yrs)	87.3%	55
2015 (36 yrs)	89.8%	59
2014 (35 yrs)	92.7%	55
2013 (34 yrs)	76.9%	52
2012 (33 yrs)	94.1%	51
2011 (32 yrs)	78.1%	64
2010 (31 yrs)	84.4%	64
2009 (30 yrs)	79%	62

Year-by-Year MOT Results

2009

79.0%

Age (yrs) 30Tests 62Avg Mileage 17,203Top Failure Motorcycle lighting and signalling — 9.7%

2010

84.4%

Age (yrs) 31Tests 64Avg Mileage 18,024Top Failure Motorcycle lighting and signalling — 7.8%

2011

78.1%

Age (yrs) 32Tests 64Avg Mileage 18,905Top Failure Motorcycle lighting and signalling — 14.1%

2012

94.1%

Age (yrs) 33Tests 51Avg Mileage 22,166Top Failure Motorcycle lighting and signalling — 3.9%

2013

76.9%

Age (yrs) 34Tests 52Avg Mileage 21,375Top Failure Motorcycle lighting and signalling — 32.7%

2014

92.7%

Age (yrs) 35Tests 55Avg Mileage 20,468Top Failure Motorcycle lighting and signalling — 5.5%

2015

89.8%

Age (yrs) 36Tests 59Avg Mileage 21,161Top Failure Motorcycle brakes — 11.9%

2016

87.3%

Age (yrs) 37Tests 55Avg Mileage 24,156Top Failure Motorcycle drive system — 7.3%

2017

82.7%

Age (yrs) 38Tests 52Avg Mileage 21,573Top Failure Motorcycle brakes — 15.4%

2018

90.6%

Age (yrs) 39Tests 32Avg Mileage 20,805Top Failure Motorcycle lamps and reflectors — 12.5%

MOT results for 1979 Triumph T140 by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	30	79.0%	62	17,203	Motorcycle lighting and signalling — 9.7%
2010	31	84.4%	64	18,024	Motorcycle lighting and signalling — 7.8%
2011	32	78.1%	64	18,905	Motorcycle lighting and signalling — 14.1%
2012	33	94.1%	51	22,166	Motorcycle lighting and signalling — 3.9%
2013	34	76.9%	52	21,375	Motorcycle lighting and signalling — 32.7%
2014	35	92.7%	55	20,468	Motorcycle lighting and signalling — 5.5%
2015	36	89.8%	59	21,161	Motorcycle brakes — 11.9%
2016	37	87.3%	55	24,156	Motorcycle drive system — 7.3%
2017	38	82.7%	52	21,573	Motorcycle brakes — 15.4%
2018	39	90.6%	32	20,805	Motorcycle lamps and reflectors — 12.5%

Common MOT Failures

Top failure categories across all test years for 1979 Triumph T140, with age trends.

Motorcycle lamps and reflectors

12.5%

— Consistent

Motorcycle lighting and signalling

11.1%

↓ Decreases with age

Motorcycle brakes

7.7%

↑ Increases with age

Motorcycle steering and suspension

6.9%

— Consistent

Motorcycle suspension

6.3%

— 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	9.7% (30 yrs)	3.1% (39 yrs)	-6.6%	🟢 ↓

Other Manufacture Years

1976 1977 1978 1979 1980 1981

← Back to Triumph T140 overview

Looking for the best year to buy? See the full comparison on the Triumph T140 page →

About This Data

This page shows how Triumph T140 cars manufactured in 1979 perform at MOT as they age. Data spans from 2009 to 2018, covering 546 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.