1971 Norton Unclassified — MOT History by Age

How cars manufactured in 1971 perform at MOT as they age

55 years

Current Age

93.5%

Latest Pass Rate

998

Total Tests (All Years)

27,226 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 1971 Norton Unclassified as it ages.

38 yrs92.2%

→ ↑1.1%

39 yrs93.3%

→ ↓4.6%

40 yrs88.7%

→ ↓0.7%

41 yrs88.0%

→ ↑6.1%

42 yrs94.1%

→ ↓5.9%

43 yrs88.2%

→ ↑4.9%

44 yrs93.1%

→ ↓2.8%

45 yrs90.3%

→ ↑3.2%

46 yrs93.5%

📊 View as table

Age	Pass Rate	Tests
38 yrs	92.2%	128
39 yrs	93.3%	120
40 yrs	88.7%	124
41 yrs	88.0%	117
42 yrs	94.1%	101
43 yrs	88.2%	102
44 yrs	93.1%	101
45 yrs	90.3%	113
46 yrs	93.5%	92

Pass Rate Trend

How the 1971 Norton Unclassified pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2017 (46 yrs)	93.5%	92
2016 (45 yrs)	90.3%	113
2015 (44 yrs)	93.1%	101
2014 (43 yrs)	88.2%	102
2013 (42 yrs)	94.1%	101
2012 (41 yrs)	88%	117
2011 (40 yrs)	88.7%	124
2010 (39 yrs)	93.3%	120
2009 (38 yrs)	92.2%	128

Year-by-Year MOT Results

2009

92.2%

Age (yrs) 38Tests 128Avg Mileage 26,563Top Failure Motorcycle lighting and signalling — 3.1%

2010

93.3%

Age (yrs) 39Tests 120Avg Mileage 24,575Top Failure Motorcycle lighting and signalling — 4.2%

2011

88.7%

Age (yrs) 40Tests 124Avg Mileage 24,435Top Failure Motorcycle lighting and signalling — 7.3%

2012

88.0%

Age (yrs) 41Tests 117Avg Mileage 26,250Top Failure Motorcycle lighting and signalling — 8.5%

2013

94.1%

Age (yrs) 42Tests 101Avg Mileage 25,283Top Failure Motorcycle brakes — 3.0%

2014

88.2%

Age (yrs) 43Tests 102Avg Mileage 26,338Top Failure Motorcycle lighting and signalling — 7.8%

2015

93.1%

Age (yrs) 44Tests 101Avg Mileage 28,839Top Failure Motorcycle brakes — 4.0%

2016

90.3%

Age (yrs) 45Tests 113Avg Mileage 26,160Top Failure Motorcycle brakes — 4.4%

2017

93.5%

Age (yrs) 46Tests 92Avg Mileage 27,226Top Failure Motorcycle lighting and signalling — 2.2%

MOT results for 1971 Norton Unclassified by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	38	92.2%	128	26,563	Motorcycle lighting and signalling — 3.1%
2010	39	93.3%	120	24,575	Motorcycle lighting and signalling — 4.2%
2011	40	88.7%	124	24,435	Motorcycle lighting and signalling — 7.3%
2012	41	88.0%	117	26,250	Motorcycle lighting and signalling — 8.5%
2013	42	94.1%	101	25,283	Motorcycle brakes — 3.0%
2014	43	88.2%	102	26,338	Motorcycle lighting and signalling — 7.8%
2015	44	93.1%	101	28,839	Motorcycle brakes — 4.0%
2016	45	90.3%	113	26,160	Motorcycle brakes — 4.4%
2017	46	93.5%	92	27,226	Motorcycle lighting and signalling — 2.2%

Common MOT Failures

Top failure categories across all test years for 1971 Norton Unclassified, with age trends.

Motorcycle lighting and signalling

4.8%

— Consistent

Motorcycle brakes

2.8%

— Consistent

Motorcycle steering and suspension

1.9%

— Consistent

Motorcycle drive system

1.7%

— Consistent

Motorcycle fuel and exhaust

1.7%

— Consistent

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

Category	At Youngest	At Oldest	Change	Trend
Motorcycle drive system	0.8% (38 yrs)	2.2% (46 yrs)	+1.4%	⚪ —
Motorcycle lighting and signalling	3.1% (38 yrs)	2.2% (46 yrs)	-0.9%	⚪ —
Motorcycle brakes	1.6% (38 yrs)	1.1% (46 yrs)	-0.5%	⚪ —

Other Manufacture Years

1960 1961 1962 1964 1971 1972 1973 1974 1975 1976

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About This Data

This page shows how Norton Unclassified cars manufactured in 1971 perform at MOT as they age. Data spans from 2009 to 2017, covering 998 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.