Husqvarna SM 450 RR and SM 530 RR feature “Wave” discs with a 310mm disc up front for a better compromise between adjustability and stopping power. The motorcycles come supplied with spare sprockets and crown wheels and a set of steering rake sockets as well as a racing type side stand, racing brake and clutch levers and hand guards The machines are not homologated for use on the road and can only be ridden on a track. They will be available from early December through orders made through the Husqvarna sales network.