DID Chain 110 Links VX2 520 (X-Ring Gold-Open with clip lock Sealed X-Ring Tensile strength: 3720 kg Gold and foreign stahlfarbene Innenlaschen &(G B) designed specifically for Road and Off Road (up to 750 cc) Open Chain with Clip Lock D.I.D Pro-Street X-Ring VX series chains have much greater rigidity and wear resistance than the previous VM series. A patented low friction X-Ring is used for maximum performance. Best-selling D.I.D chain due to it's high performance and great value.