Early years Topan began motorcycle racing a bit later than most professionals, starting at 13 years of age. He won his rookie year in Novice category of the Indonesian national championship in both 2007 and 2008, and clinching the Expert title in 2009. In 2011, Topan won the Underbone title of the PETRONAS
Asia Road Racing Championship, whilst in 2012 he made his Supersport 600cc debut.
Moto2 World Championship At the end of 2012, Topan substituted for
Anthony West in the QMMF Racing team in Moto2 and impressed the team sufficiently to be offered a ride alongside West for 2013. Topan was ranked 30th in 2013 Moto2 season, with his best finishing position of 20th at
Phillip Island and qualified 5th at
Twin Ring Motegi. Topan was selected by
Forward Racing to replace their injured rider,
Stefano Manzi, in the
2018 Malaysian motorcycle Grand Prix. This marks his first Moto2 appearance after being absent from the championship for 5 years. He managed to finish the race in 26th position.
CEV Moto2 European Championship Topan participated in the
2016 FIM CEV Moto2 European Championship and also in the CEV Superstock 600 European Championship. On his debut race in
Circuit de Barcelona-Catalunya on 12 June 2016, he finished 14th overall in the first race and 20th overall in the second race. Despite his overall finishes, he was classified as winner on both races for the Superstock 600 class. ==Career statistics==