The K1 sintered compound is optimal for off-road dirt bikes and ATV. It is recommended for off-road riders riders riding on tough off-road terrains.

The K1 series is designed for low abrasive interaction with the rotor, long life and self-cleaning capabilities necessary for off-road riding conditions.

Friction materials contain metal-ceramic with a sophisticated bronze-graphite and full-metal mixture formulation with fine friction particles to achieve optimal friction properties.