Sintered metal brake pads are the OEM-type replacement pads for most bikes from the late 1970s to the present Sintered metal brake pads are proudly made in the U.S.A.; second-to-none in their stopping abilities and wear characteristics while still providing excellent reduction in noise and dust Pads are asbestos-, nickel-, and lead-free; Note: If you are using aftermarket billet steel rotors it is recommended you use our Organic-Kevlar brake pads to avoid damage to them. Sintered pads are not recommended for billet steel rotors as the pad material is to aggressive for those rotors.