Designed and built with durability and quality. All of this at a price point you cannot refuse. Now is the time to join the movement and add Fire Power to your ride. Designed and manufactured in Japan. Hardened and shot-peened components. Solid rollers, pre-stretched. All chains supplied with clip-style master links. All chains are available in natural finish, gold finish available depending on chain pitch / length. 420 Pitch Specifications: Tensile strength: 4,300 pounds. Maximum displacement: 80cc. 428 Pitch Specifications: Tensile strength: 4,400 pounds. Maximum displacement: 100cc street / 80cc off-road. 520 Pitch Specifications: Tensile strength: 7,400 pounds. Maximum displacement: 250cc street / 125cc off-road. 530 Pitch Specifications: