1978 Suzuki Gs550 — MOT History by Age

How cars manufactured in 1978 perform at MOT as they age

48 years

Current Age

87.5%

Latest Pass Rate

366

Total Tests (All Years)

24,677 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 1978 Suzuki Gs550 as it ages.

31 yrs79.6%

→ ↓10.6%

32 yrs69.0%

→ ↑12.4%

33 yrs81.4%

→ ↓6.4%

34 yrs75.0%

→ ↑2.8%

35 yrs77.8%

→ ↓4.0%

36 yrs73.8%

→ ↑8.0%

37 yrs81.8%

→ ↑1.5%

38 yrs83.3%

→ ↑4.2%

39 yrs87.5%

📊 View as table

Age	Pass Rate	Tests
31 yrs	79.6%	49
32 yrs	69.0%	42
33 yrs	81.4%	43
34 yrs	75.0%	44
35 yrs	77.8%	45
36 yrs	73.8%	42
37 yrs	81.8%	33
38 yrs	83.3%	36
39 yrs	87.5%	32

Pass Rate Trend

How the 1978 Suzuki Gs550 pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2017 (39 yrs)	87.5%	32
2016 (38 yrs)	83.3%	36
2015 (37 yrs)	81.8%	33
2014 (36 yrs)	73.8%	42
2013 (35 yrs)	77.8%	45
2012 (34 yrs)	75%	44
2011 (33 yrs)	81.4%	43
2010 (32 yrs)	69%	42
2009 (31 yrs)	79.6%	49

Year-by-Year MOT Results

2009

79.6%

Age (yrs) 31Tests 49Avg Mileage 29,251Top Failure Motorcycle lighting and signalling — 16.3%

2010

69.0%

Age (yrs) 32Tests 42Avg Mileage 31,194Top Failure Motorcycle steering and suspension — 16.7%

2011

81.4%

Age (yrs) 33Tests 43Avg Mileage 33,808Top Failure Motorcycle steering and suspension — 11.6%

2012

75.0%

Age (yrs) 34Tests 44Avg Mileage 26,756Top Failure Motorcycle lighting and signalling — 9.1%

2013

77.8%

Age (yrs) 35Tests 45Avg Mileage 26,560Top Failure Motorcycle lighting and signalling — 15.6%

2014

73.8%

Age (yrs) 36Tests 42Avg Mileage 28,650Top Failure Motorcycle lighting and signalling — 26.2%

2015

81.8%

Age (yrs) 37Tests 33Avg Mileage 28,047Top Failure Motorcycle steering and suspension — 12.1%

2016

83.3%

Age (yrs) 38Tests 36Avg Mileage 24,182Top Failure Motorcycle lighting and signalling — 27.8%

2017

87.5%

Age (yrs) 39Tests 32Avg Mileage 24,677Top Failure Motorcycle steering and suspension — 12.5%

MOT results for 1978 Suzuki Gs550 by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	31	79.6%	49	29,251	Motorcycle lighting and signalling — 16.3%
2010	32	69.0%	42	31,194	Motorcycle steering and suspension — 16.7%
2011	33	81.4%	43	33,808	Motorcycle steering and suspension — 11.6%
2012	34	75.0%	44	26,756	Motorcycle lighting and signalling — 9.1%
2013	35	77.8%	45	26,560	Motorcycle lighting and signalling — 15.6%
2014	36	73.8%	42	28,650	Motorcycle lighting and signalling — 26.2%
2015	37	81.8%	33	28,047	Motorcycle steering and suspension — 12.1%
2016	38	83.3%	36	24,182	Motorcycle lighting and signalling — 27.8%
2017	39	87.5%	32	24,677	Motorcycle steering and suspension — 12.5%

Common MOT Failures

Top failure categories across all test years for 1978 Suzuki Gs550, with age trends.

Motorcycle lighting and signalling

16.0%

↓ Decreases with age

Motorcycle steering and suspension

11.8%

— Consistent

Motorcycle brakes

10.2%

— Consistent

Motorcycle tyres and wheels

7.3%

— Consistent

Motorcycle reg plates and vin

4.5%

— 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	16.3% (31 yrs)	9.4% (39 yrs)	-6.9%	🟢 ↓
Motorcycle steering and suspension	10.2% (31 yrs)	12.5% (39 yrs)	+2.3%	🔴 ↑
Motorcycle drive system	2.0% (31 yrs)	3.1% (39 yrs)	+1.1%	⚪ —
Motorcycle brakes	10.2% (31 yrs)	9.4% (39 yrs)	-0.8%	⚪ —

Other Manufacture Years

1978 1979 1980 1981 1982 1983

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About This Data

This page shows how Suzuki Gs550 cars manufactured in 1978 perform at MOT as they age. Data spans from 2009 to 2017, covering 366 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.