Model report · 2005–2025
MATCHLESS G80CS
500cc
Petrol
Class 2
91.1%
first-time pass rate
2.0%
failed outright
3,697
median miles at test
303
MOT tests, 2005–2025
Pass rate by mileage
how the G80CS's first-time pass rate falls with the odometer · class average 84.9%
A low-mileage G80CS passes first time 90.5% of the time; by 20k that's 90.3%.
First-time pass rate by odometer reading at test, 10,000-mile bands for this model. Mileage is the strongest reliability signal. See the full curve.
What fails on a G80CS
failure defects by component group · advisories excluded
| Component group | Share of defects | Defects | % of defects |
|---|---|---|---|
| lighting and signalling |
|
6 | 46.2 |
| steering and suspension |
|
2 | 15.4 |
| tyres and wheels |
|
2 | 15.4 |
| brakes |
|
1 | 7.7 |
| fuel and exhaust |
|
1 | 7.7 |
| reg plates and vin |
|
1 | 7.7 |
Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects.
How rivals compare
same type, similar capacity, high test volume
On first-time pass rate the G80CS beats 4 of its 4 closest rivals (KAWASAKI ZX-6R, SUZUKI GSF600, YAMAHA FZS600).
KAWASAKI
ZX-6R
78.1% pass · 174k tests
SUZUKI
GSF600
77.3% pass · 143k tests
YAMAHA
FZS600
82.6% pass · 137k tests
SUZUKI
SV650S
80.6% pass · 84.6k tests
Rivals share this bike's type and sit within ±30% of its engine capacity, ≥ 5,000 tests. Card colour = better/worse first-time pass rate than the G80CS.