The rubber compounding uses organosilicon filling (silica), lump rubber and foreign manufacturers' ingredients.
The new generation of tyres (KAMA-EURO -236, KAMA-EURO -129, KAMA-EURO -131) uses the new three-ply tread of solution-type rubber with high organosilicon filling content and silane, without active technical carbon, with considerable lump rubber content which maintains initial elasticity and hither durability throughout the tyre lifecycle. The tread is comprised of three parts - tread section, mini-sidewall and undertread layer, which are different in composition, while the tread itself is comprised of two parts. The second layer is the undertread layer 2 mm thick instead of a 0.5 mm layer.
Automobile radial tyres of new design where the tread has high silicic acid content and undertread layer has low hysteresis losses enable higher durability of the car, reduced fuel consumption through over 10% lower rolling resistance, shorter braking distance as well as better stability and handling. This allows the tyres to keep up with competition.
Tyre wear indicator is used to determine the remaining-tread depth of KAMA-EURO -129 tyres.
As the tyre is wearing out and the tread depth reduces, the wedge-shaped opening of the wear indicator is rubbed-off.
The numeric ruler near the indicator allows to determine the present remaining-tread depth in millimeters.
The use of laboratory and road test results in presentations is allowed only without indication of actual measured values and names of competing tyres.
Laboratory and road tests are performed according to the test schedule agreed upon by the test performer. The results are provided in the acceptance reports for the tested tyre.