Pass rate over time
The 650's first-time pass rate has fallen 9.2 points since 2014, 96.7% to 87.5%.
Pass rate by mileage
A low-mileage 650 passes first time 91.3% of the time; by 30k that's 86.8%.
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 650
| Component group | Share of defects | Defects | % of defects |
|---|---|---|---|
| brakes |
|
21 | 24.7 |
| lighting and signalling |
|
14 | 16.5 |
| lamps and reflectors |
|
11 | 12.9 |
| steering and suspension |
|
8 | 9.4 |
| drive system |
|
8 | 9.4 |
| tyres and wheels |
|
7 | 8.2 |
| structure and attachments |
|
4 | 4.7 |
| fuel and exhaust |
|
4 | 4.7 |
| suspension |
|
4 | 4.7 |
| tyres |
|
4 | 4.7 |
Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects.
How rivals compare
On first-time pass rate the 650 beats 3 of its 4 closest rivals (KAWASAKI ZX-6R, SUZUKI GSF600, YAMAHA FZS600).
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 650.