Rotax DD2 Chassis with CIK-FIA Homologated rear bumper for FIA Karting Calender 2020 Events Rotax DD2 Chassis with CIK-FIA Homologated rear bumper for FIA Karting Calender 2020 Events Bas Kaligis / Monday, December 9, 2019 0 12998 Article rating: 3.6 BRP-Rotax would like to inform all customers that a CIK-FIA approved rear bumper will now be mandatory for any Rotax MAX Challenge (RMC) events/series listed on the FIA Karting Sporting Calendars 2020, in order meet the latest CIK-FIA chassis requirements of the use of CIK-FIA homologated equipment. Read more