Testing
Testing, Testing...
We aim to construct the very best tyres. But what does that involve?
Each tyre with the distinctive Z logo on the sidewall must meet the highest standards – and there’s no higher benchmark than the one we set ourselves. There are many individual procedures that test every possible subjective and objective parameter. But to ensure that our premium Z tyres meet such demanding expectations, we’ve developed our own independent testing schedule. Such tests extend well beyond the legally required test criteria.

We Call It Z-360 ° Testing
Complete customer satisfaction is our goal. So we don’t just look at the objective tyre test criteria, but also the more nuanced subjective tests that involve wet and dry road handling, driver ‘feel’ and vehicle stability especially at high speeds. At the independent IDIADA proving ground in Spain, numerous tests are performed and repeated to our exacting standards.

Wet Weather Testing
Wet handling
Wet braking behaviour
Wet traction
Aquaplaning in a straight line
On Dry Roads
Handling in dry surface conditions
Braking performance on dry roads
Driving stability at high speeds


Cornering Behaviour
Grip on road bends
Aquaplaning in curves
Noise Testing
Interior cabin noise – for driver comfort
External ‘pass by’ noise

Setting a New Standard
And many more tyre test criteria, where we perform comparative tests against competitive benchmarks to see how we compare and how we can perform even better.
Our Goal
Every driver running on Z tyres can always be confident of the very best performance.