Model report · 2005–2025
TGB CU8
124cc
Petrol
Class 1
66.7%
first-time pass rate
28.0%
failed outright
7,353
median miles at test
93
MOT tests, 2005–2025
What fails on a CU8
failure defects by component group · advisories excluded
| Component group | Share of defects | Defects | % of defects |
|---|---|---|---|
| brakes |
|
15 | 25.4 |
| tyres |
|
9 | 15.3 |
| structure and attachments |
|
8 | 13.6 |
| suspension |
|
7 | 11.9 |
| lamps and reflectors |
|
6 | 10.2 |
| steering |
|
4 | 6.8 |
| tyres and wheels |
|
3 | 5.1 |
| lighting and signalling |
|
3 | 5.1 |
| steering and suspension |
|
3 | 5.1 |
| audible warning (Horn) |
|
1 | 1.7 |
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 CU8 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 CU8.