IRIS XR Chain: Extra reinforced, this is the top of the line Iris 'non O-ring chain' with excellent resistance to wear and elongation. Recommended for standard as well as racing applications whenever O-ring chain is not required.
IRIS XR-Ring Chain: Features super reinforced side plates, solid bushes and heavy duty rivets. Dirt and watertight links have been achieved with a special four lip X-ring seal.
Due to its lower level of friction, its operation is much smoother because it engages better than a traditional O-ring chain, considerably increasing the lifetime of the chain. (Rivet link included)
Buy with confidence. We only list and sell chains & sprockets of a suitable quality for your bike.