To develop the Z+ compound they started with a racing brake pad material and worked thier way backwards Lyndall Brakes wanted to provide the optimum stopping power that was suitable for everyday general purpose riding Our Z+ pads are a DuPont Carbon-Kevlar (organic) compound that will work as well right out of a driveway as it does after a long day of hard riding This is the most rotor friendly pad in the industry It produces no dust, no noise, while providing 20% more stopping torque than the stock pads The service life generally averages about 18,000 miles that is amazing for a set of pads on any motorcycle