D.I.D's 415ERZ chain is a high-performance, lightweight, low-friction, non o-ring chain with solid bushing and quad-riveted pins with an exclusive SDH treatment. SDH treated pins have extreme impact strength while adding outstanding shock absorption. The projected wear life is 4.1 times longer than a standard chain under similar conditions. Weight per 100 Links: 1.45 lbs.; Tensile Strength: 4,540 Lbs.; Maximum engine displacement: 125cc. Clip Type Master link included.