300MM Front Brake Disc Rotor For Yamaha XV535 XV750 XV920 XS1100 XS500 XS650 Motorcycle Parts Fit For Yamaha XV535 Virago535 1987-1988 XV750 Fit For Virago750 1981-1983 XV920 XS1100 1980-1981 XS500 1976-1978 XS650 1977-1983 cruiser front brake assembly with standard 300mm outer diameter mounting hole layout hub position thickness specification; direct bolt on installation without drilling or during brake system upgrade Made of hardness SUS420 with treatment HRC36±2; anti warp anti deformation under long distance highway touring temperature braking Slotted design accelerates dissipation quickly clears water mud brake dust off friction surface; delivers stable responsive stopping power on wet dry pavement Uniform flat friction surface with balanced weight distribution; reduces brake vibration noise while extending life of matching brake pads for vintage yamaha v-twin cruisers