"The latest evolution for long durability chains. Extends sprocket life up to 30% compared with other O or X Ring chains.
Including master and rivet link. Use for Onroad bikes only the rivet link! The master link should be used only for Offroad use.
The Z-Ring deforms when assembled, creating a spring effect that produces a long lasting seal. The special Z-Ring section enhances chain flexibility and smooth operation. The conical section of the Z-Ring provides accurate positioning on the bushing.
The lubricant is trapped between the plates and the lobes of the Z-Ring, keeping the Z-Ring lubricated and prolonging it’s life."