Tyres must be fit for purpose, free from any defects and correctly inflated to the recommended pressure.
Tyres must also have a minimum of 1.6mm of tread depth across the central three quarters of the tyre’s width in a continuous band around the entire circumference.
A vehicle with any of these faults or fitted with tyres of different nominal size or aspect ratio on the same axle is liable to fail the road worthiness test.
Motorists who drive on illegal or defective tyres can be fined. A police officer may issue a fixed penalty notice or report the case for prosecution, where the court can impose a fine of up to KShs 100,000 for each illegal tyre.
The driver also faces three penalty points, so if all four are deemed illegal, the driver could receive 12 penalty points on his licence and immediate disqualification.