Model report · 2005–2025
DERBI GP1 125
124cc
Petrol
Class 1
54.8%
first-time pass rate
32.7%
failed outright
9,722
median miles at test
104
MOT tests, 2005–2025
What fails on a GP1 125
failure defects by component group · advisories excluded
| Component group | Share of defects | Defects | % of defects |
|---|---|---|---|
| brakes |
|
39 | 37.9 |
| lighting and signalling |
|
25 | 24.3 |
| steering and suspension |
|
19 | 18.4 |
| tyres and wheels |
|
9 | 8.7 |
| drive system |
|
4 | 3.9 |
| fuel and exhaust |
|
3 | 2.9 |
| steering |
|
1 | 1 |
| body and structure |
|
1 | 1 |
| structure and attachments |
|
1 | 1 |
| suspension |
|
1 | 1 |
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 GP1 125 beats 0 of its 4 closest rivals (YAMAHA YBR 125, HONDA CG125, HONDA CBF125).
YAMAHA
YBR 125
71.0% pass · 125k tests
HONDA
CG125
72.2% pass · 89.3k tests
HONDA
CBF125
73.3% pass · 84.4k tests
GILERA
RUNNER
70.8% pass · 69.9k 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 GP1 125.