A power transmission chain that can undergoe in use a transition alternately between a linear region and a region wound over a pulley (60; 70), the chain comprising: plural link plates; and plural coupling members that couple the link plates one to each other, wherein: the coupling members include a main power transmission member; the main power transmission member includes a counter portion that opposes a counter member; the counter member comprises one of a link plate corresponding to the main power transmission member or a member interposed between the corresponding link plate and the main power transmission member; the counter portion of the main power transmission member comes into contact with the counter member in a contact state including at least one of rolling contact and sliding contact at a contact portion that displaces in association with bending of the power transmission chain; each of the main power transmission members includes a pair of end faces that are curved convexly toward the outside in a chain width direction; a contact region that can come in use into contact with a corresponding sheave surface of the pulley (60; 70) is formed on each of the end faces; the contact region includes a center point of contact; the main power transmission members include plural types of main power transmission members; wherein each end face has a radius curvature in each of two directions that cross with the chain width direction, wherein the center point of contact coincides with an apical portion of the end face, characterized in that a relative position of the contact portion and the center point of contact along a direction that is orthogonal both to the chain width direction and to a chain traveling direction is different in each type of the main power transmission members when the linear region of the power transmission chain is viewed in the chain width direction, wherein a position of the center point of contact along the direction that is orthogonal both to the chain width direction and to the chain traveling direction is different in each type of the main power transmission members when the linear region of the power transmission chain is viewed in the chain width direction. plural link plates; and plural coupling members that couple the link plates one to each other, the coupling members include a main power transmission member; the main power transmission member includes a counter portion that opposes a counter member; the counter member comprises one of a link plate corresponding to the main power transmission member or a member interposed between the corresponding link plate and the main power transmission member; the counter portion of the main power transmission member comes into contact with the counter member in a contact state including at least one of rolling contact and sliding contact at a contact portion that displaces in association with bending of the power transmission chain; each of the main power transmission members includes a pair of end faces that are curved convexly toward the outside in a chain width direction; a contact region that can come in use into contact with a corresponding sheave surface of the pulley (60; 70) is formed on each of the end faces; the contact region includes a center point of contact; the main power transmission members include plural types of main power transmission members; wherein each end face has a radius curvature in each of two directions that cross with the chain width direction, wherein the center point of contact coincides with an apical portion of the end face, characterized in that a relative position of the contact portion and the center point of contact along a direction that is orthogonal both to the chain width direction and to a chain traveling direction is different in each type of the main power transmission members when the linear region of the power transmission chain is viewed in the chain width direction, wherein a position of the center point of contact along the direction that is orthogonal both to the chain width direction and to the chain traveling direction is different in each type of the main power transmission members when the linear region of the power transmission chain is viewed in the chain width direction.