the pairs of outer links 120 thus each pair of inner links 110 is free to rotate in two directions relative to the joined pair of outer links 120 chain pads 200 according to the invention as described below are adapted to be mounted to the outer links 120 an elongated pin 132 sized to rotatably mount within each hollow roller 126 extends through each roller 126 on both sides of the chain 100 on one side of the chain two pins 132 are connected to each other in a parallel relationship by a fixed pin connector or fixed side link 134 the fixed pin connector 134 is but need not be shaped congruently with the outer link 120 with which it is parallel the connector 134 is secured to the pins 132 by any well known fastening relationship e g riveting the ends of the pins a chain pad 200 is mounted to the pins between the fixed pin connector 134 and the outer link 120 on one side of the chain 100 the end of each pin 132 opposite the fixed pin connector 134 comprises an annular groove 133 a removable pin connector or removable bide link 136 typically shaped congruently relative to.