SUZUKI GSF 600 SK1
Pass rate over time
The GSF 600 SK1's first-time pass rate has risen 13.4 points since 2006, 78.5% to 91.9%.
Pass rate by mileage
A low-mileage GSF 600 SK1 passes first time 88.4% of the time; by 40k that's 80.0%.
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 GSF 600 SK1
| Component group | Share of defects | Defects | % of defects |
|---|---|---|---|
| lighting and signalling |
|
37 | 30.6 |
| brakes |
|
32 | 26.4 |
| lamps and reflectors |
|
14 | 11.6 |
| tyres and wheels |
|
13 | 10.7 |
| steering and suspension |
|
11 | 9.1 |
| body and structure |
|
4 | 3.3 |
| tyres |
|
3 | 2.5 |
| suspension |
|
3 | 2.5 |
| reg plates and vin |
|
2 | 1.7 |
| fuel and exhaust |
|
2 | 1.7 |
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 GSF 600 SK1 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 GSF 600 SK1.
Pass rate by registration year
Best year to buy used: 2002 (83.9% pass). Weakest: 2001 (81.5%).
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.