Z-ring chains feature the patented Z44 sealing rings, which greatly improve performance and wear life, making previous X-ring and Z-ring chains obsolete50% reduction in friction compared to traditional O-ringsConstant lubrication from special high-temperature grease in the critical pin/bushing area provides long lifeHigh-carbon alloy pins to minimize wear and increased roller thickness to prolong durabilityThicker outer plates and quad-riveting for greater tensile strengthIdeal for street bikes and superbikes up to 1,300ccRivet type link includedClip type and Hollow rivet type connecting links also available hollow type rivet connecting link works with many different chain toolsGold color