Pass rate over time
The 620's first-time pass rate has risen 11.3 points since 2009, 75.8% to 87.1%.
What fails on a 620
| Component group | Share of defects | Defects | % of defects |
|---|---|---|---|
| lighting and signalling |
|
32 | 37.2 |
| brakes |
|
19 | 22.1 |
| steering and suspension |
|
13 | 15.1 |
| fuel and exhaust |
|
6 | 7 |
| tyres and wheels |
|
4 | 4.7 |
| reg plates and vin |
|
3 | 3.5 |
| structure and attachments |
|
3 | 3.5 |
| tyres |
|
3 | 3.5 |
| lamps and reflectors |
|
2 | 2.3 |
| suspension |
|
1 | 1.2 |
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 620 beats 2 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 620.
Pass rate by registration year
Best year to buy used: 2004 (87.1% pass). Weakest: 2003 (75.9%).
First-time pass rate by the year each bike was first registered (cohorts with ≥ 50 tests). Older cohorts are survivors: the worst examples have already left the road, which tends to lift the earliest years.