Motorcycle Brake Disc For Honda AX1 NX 250 250cc 1989-1997 Works for Fit For Honda AX1 NX250 250cc 1989-1997 offroad motorcycle rear brake assembly; 220mm overall diameter mounting hole layout no drilling or grinding needed;Ventilated disc structure optimizes dissipation to avoid brake during long downhill rough terrain riding; hardness material anti rust anti wear stable friction for daily trail use;Consistent thickness bolt hole spacing same as OEM rear brake rotor replacement standard