- All D.I.D ER chains are designed exclusively for racing. The 520ERT2 Gold Chain is used by the top factory Supercross and Motocross Teams to win races.
- D.I.D's exclusive SDH pin treatment is featured on our 520ERT2. This hi-tech pin treatment forms an extremely hard chromium carbide layer on the pins surface while maintaining a soft inner core.
- SDH treated pins have extreme impact strength while maintaining outstanding shock absorption. This treatment creates a chain with superior wear resistance against invasion of hard foreign materials.
- Sale price only available in 120 link model.