K 1 is a medium-high friction metal-ceramic kart compound developed for kart racing across a broad range of classes. It combines very good initial bite, direct pedal feel, excellent modulation, and a medium-high friction coefficient with low heat conductivity and a flat friction curve, giving it a controllable, consistent character without feeling overly sharp or abrupt. This makes K 1 a strong option for drivers looking for a kart compound that delivers performance, feel, and precision with a balanced and usable response.