I have never seen this before in any other beta, i have seen a whitebike thats almost normal for us. we enter pit and then its gone.
But this seems different it happened during riding in testing mode with a .grv on track, it happened when on lap 10 on soft tyres.
https://www.youtube.com/v/DuIClYWVxdE
Sorry screwed up the link fixed now.
Tomorrow im gonna try the murasama_rc990_03 too see if that bike also has this.