Model report · 2005–2025
BIG DOG K9
1917cc
Petrol
Class 2
87.8%
first-time pass rate
4.4%
failed outright
7,749
median miles at test
90
MOT tests, 2005–2025
What fails on a K9
failure defects by component group · advisories excluded
| Component group | Share of defects | Defects | % of defects |
|---|---|---|---|
| lamps and reflectors |
|
8 | 57.1 |
| brakes |
|
3 | 21.4 |
| steering |
|
2 | 14.3 |
| tyres |
|
1 | 7.1 |
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 K9 beats 2 of its 4 closest rivals (SUZUKI GSX1400, KAWASAKI VN1500, HONDA GL1500).
SUZUKI
GSX1400
88.3% pass · 56.8k tests
KAWASAKI
VN1500
85.5% pass · 9,190 tests
HONDA
GL1500
86.5% pass · 9,175 tests
HONDA
F6C
90.4% pass · 9,153 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 K9.