KAWASAKI GPZ600R
Pass rate over time
The GPZ600R's first-time pass rate has risen 11.8 points since 2005, 73.0% to 84.8%.
Pass rate by mileage
A low-mileage GPZ600R passes first time 74.7% of the time; by 50k that's 69.8%.
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 GPZ600R
| Component group | Share of defects | Defects | % of defects | vs all bikes |
|---|---|---|---|---|
| brakes |
|
636 | 29.4 | 2.4× |
| steering and suspension |
|
536 | 24.8 | 3.2× |
| lighting and signalling |
|
498 | 23 | 2.2× |
| drive system |
|
133 | 6.1 | 3.7× |
| tyres and wheels |
|
129 | 6 | 1.5× |
| fuel and exhaust |
|
82 | 3.8 | 2.4× |
| reg plates and vin |
|
57 | 2.6 | 2.0× |
| driving controls |
|
35 | 1.6 | 3.9× |
| body and structure |
|
31 | 1.4 | 1.5× |
| structure and attachments |
|
28 | 1.3 | 0.7× |
Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects. "vs all bikes" is how often this model's tests record a defect in the group, as a multiple of the all-bike rate.
How rivals compare
On first-time pass rate the GPZ600R beats 0 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 GPZ600R.
Pass rate by registration year
Best year to buy used: 1988 (75.9% pass). Weakest: 1990 (67.8%).
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.
KAWASAKI GPZ600R FAQ
Is the KAWASAKI GPZ600R reliable?
The KAWASAKI GPZ600R is less reliable than average for its class: 71.4% of its 3,752 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #4616 of 5426 models.
What does a GPZ600R fail its MOT on most?
brakes — 29% of all defects recorded against failed GPZ600R tests.
What is the best year of GPZ600R to buy used?
By first-time pass rate, 1988-registered examples do best (75.9%) and 1990 worst (67.8%). Condition and history still trump the year.
How many miles will a GPZ600R last?
The median GPZ600R shows 36,306 miles at test, and examples around 50k miles still pass 69.8% of the time — mileage alone rarely kills one.