1981 Triumph Unclassified — MOT History by Age

How cars manufactured in 1981 perform at MOT as they age

45 years

Current Age

93.3%

Latest Pass Rate

403

Total Tests (All Years)

15,407 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 1981 Triumph Unclassified as it ages.

28 yrs77.6%

→ ↓1.1%

29 yrs76.5%

→ ↑0.8%

30 yrs77.3%

→ ↑3.2%

31 yrs80.5%

→ ↑13.9%

32 yrs94.4%

→ ↓11.9%

35 yrs82.5%

→ ↑3.5%

36 yrs86.0%

→ ↑8.6%

38 yrs94.6%

→ ↓7.1%

39 yrs87.5%

→ ↑5.8%

40 yrs93.3%

📊 View as table

Age	Pass Rate	Tests
28 yrs	77.6%	49
29 yrs	76.5%	51
30 yrs	77.3%	44
31 yrs	80.5%	41
32 yrs	94.4%	36
35 yrs	82.5%	40
36 yrs	86.0%	43
38 yrs	94.6%	37
39 yrs	87.5%	32
40 yrs	93.3%	30

Pass Rate Trend

How the 1981 Triumph Unclassified pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2021 (40 yrs)	93.3%	30
2020 (39 yrs)	87.5%	32
2019 (38 yrs)	94.6%	37
2017 (36 yrs)	86%	43
2016 (35 yrs)	82.5%	40
2013 (32 yrs)	94.4%	36
2012 (31 yrs)	80.5%	41
2011 (30 yrs)	77.3%	44
2010 (29 yrs)	76.5%	51
2009 (28 yrs)	77.6%	49

Year-by-Year MOT Results

2009

77.6%

Age (yrs) 28Tests 49Avg Mileage 22,326Top Failure Motorcycle lighting and signalling — 14.3%

2010

76.5%

Age (yrs) 29Tests 51Avg Mileage 22,626Top Failure Motorcycle lighting and signalling — 15.7%

2011

77.3%

Age (yrs) 30Tests 44Avg Mileage 17,515Top Failure Motorcycle steering and suspension — 9.1%

2012

80.5%

Age (yrs) 31Tests 41Avg Mileage 19,510Top Failure Motorcycle steering and suspension — 4.9%

2013

94.4%

Age (yrs) 32Tests 36Avg Mileage 18,905Top Failure Motorcycle driving controls — 2.8%

2016

82.5%

Age (yrs) 35Tests 40Avg Mileage 18,036Top Failure Motorcycle brakes — 20.0%

2017

86.0%

Age (yrs) 36Tests 43Avg Mileage 16,944Top Failure Motorcycle lighting and signalling — 14.0%

2019

94.6%

Age (yrs) 38Tests 37Avg Mileage 21,413Top Failure Identification of the vehicle — 2.7%

2020

87.5%

Age (yrs) 39Tests 32Avg Mileage 19,095Top Failure Motorcycle lamps and reflectors — 18.8%

2021

93.3%

Age (yrs) 40Tests 30Avg Mileage 15,407Top Failure Motorcycle steering — 3.3%

MOT results for 1981 Triumph Unclassified by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	28	77.6%	49	22,326	Motorcycle lighting and signalling — 14.3%
2010	29	76.5%	51	22,626	Motorcycle lighting and signalling — 15.7%
2011	30	77.3%	44	17,515	Motorcycle steering and suspension — 9.1%
2012	31	80.5%	41	19,510	Motorcycle steering and suspension — 4.9%
2013	32	94.4%	36	18,905	Motorcycle driving controls — 2.8%
2016	35	82.5%	40	18,036	Motorcycle brakes — 20.0%
2017	36	86.0%	43	16,944	Motorcycle lighting and signalling — 14.0%
2019	38	94.6%	37	21,413	Identification of the vehicle — 2.7%
2020	39	87.5%	32	19,095	Motorcycle lamps and reflectors — 18.8%
2021	40	93.3%	30	15,407	Motorcycle steering — 3.3%

Common MOT Failures

Top failure categories across all test years for 1981 Triumph Unclassified, with age trends.

Motorcycle lighting and signalling

12.2%

— Consistent

Motorcycle lamps and reflectors

8.3%

— Consistent

Motorcycle steering and suspension

6.8%

↓ Decreases with age

Motorcycle brakes

6.7%

— Consistent

Motorcycle fuel and exhaust

4.1%

— Consistent

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

Not enough data to compare failures across ages.

Other Manufacture Years

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

About This Data

This page shows how Triumph Unclassified cars manufactured in 1981 perform at MOT as they age. Data spans from 2009 to 2021, covering 403 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.