front or rear profile: strongly profiled w 130 mm 12″ with e-pass Tyre Winter Product description The HEIDENAU K66 LT Silica is a 12-inch tyre for harsh weather conditions. It copes well on snowy and slippery surfaces. It is the further development of the KK 66 Snowtex. The HEIDENAU K66 LT Silica represents the launch of a new technology and is a popular tyre at Scootershop. M+S marking es integrated in the tread Very good braking performance A winter tyre has to stay flexible at low temperatures so as to build up enough grip. To achieve this, special compounds with silica are used on the HEIDENAU Silica winter tyres. Silica is a synthetically produced silicon dioxide (SiO2), and ensures a flexible bond between the complex material components and additives of a rubber tyre compound. This flexibility reduces the internal friction as well as the development of the temperature of the tread rubber. The HEIDENAU K66 LT also contains a particularly high silica content, wh