Factory Spec, FS-525-OBLK, Heavy Duty Black O-Ring Drive Chain 525x150 ORing 525 Pitch x 150 Links O Ring (1) 525 x 150 o-ring chain (black) (1) Master link (clip style) Tensile strength of 8200 pounds O-ring style means it will last longer with less maintenance than conventional chains Factory Spec brand Stock photo is used - you will receive the length chain described