KIA Ceed_sw BJ 2013 Roll-off noise

Hello together, since April I am the owner of the new Kia Ceed_sw. I am quite happy with the vehicle (previously Opel) as well as the processing. What bothers me uncanny are the loud rolling noise of the tires. Funny way only on the rear wheels and depending on the road surface quite different. Who has the same experience and am I here alone.