The ROC air filter is a replacement part for Yamaha Cygnus motorcycles with a 125 cc engine. It is compatible with Cygnus-F XC F models from 2000–2003, Cygnus-T XC T models from 1995–1998, and Cygnus-TR XC TR models from 1996–2003.
- Type: Motorcycle air filter
- Engine displacement: 125 cc
- Compatibility: Yamaha Cygnus-F XC F 2000, Yamaha Cygnus-F XC F 2001, Yamaha Cygnus-F XC F 2002, Yamaha Cygnus-F XC F 2003, Yamaha Cygnus-T XC T 1995, Yamaha Cygnus-T XC T 1996, Yamaha Cygnus-T XC T 1997, Yamaha Cygnus-T XC T 1998, Yamaha Cygnus-TR XC TR 1996, Yamaha Cygnus-TR XC TR 1997, Yamaha Cygnus-TR XC TR 1998, Yamaha Cygnus-TR XC TR 1999, Yamaha Cygnus-TR XC TR 2000, Yamaha Cygnus-TR XC TR 2001, Yamaha Cygnus-TR XC TR 2002, Yamaha Cygnus-TR XC TR 2003