Model report · 2005–2025
PIAGGIO GS
150cc
Petrol
Class 1
93.7%
first-time pass rate
4.4%
failed outright
25,559
median miles at test
158
MOT tests, 2005–2025
What fails on a GS
failure defects by component group · advisories excluded
| Component group | Share of defects | Defects | % of defects |
|---|---|---|---|
| lighting and signalling |
|
9 | 42.9 |
| steering and suspension |
|
4 | 19 |
| brakes |
|
3 | 14.3 |
| Items Not Tested |
|
2 | 9.5 |
| fuel and exhaust |
|
1 | 4.8 |
| drive system |
|
1 | 4.8 |
| tyres and wheels |
|
1 | 4.8 |
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 GS beats 4 of its 4 closest rivals (PIAGGIO VESPA, HONDA PCX 125, HONDA Vision 110).
PIAGGIO
VESPA
80.7% pass · 287k tests
HONDA
PCX 125
81.1% pass · 88.6k tests
HONDA
Vision 110
78.2% pass · 50.6k tests
YAMAHA
NMAX 125
82.2% pass · 33.8k 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 GS.