Each CN-HG95 chain in this bundle is equipped with a directional design with specifically shaped inner & outer plates to optimise shifting over the chainset & cassette, providing smooth & precise movement. Minimising chain suck & increasing the contact with gears & smoothness of shifting under high load, the chains are built for efficient pedalling & a near silent motion. Build up of muck & crud is also prevented by the open design of the inner links, keeping each chain as clean & functioning as can be. Optimised for Shimano 10-speed HG-X MTB drivetrains only, every link of the chains are protected by a Teflon-like PTFE Sil-Tec surface treatment, giving a non-stick & durable finish. Further durability is assured through a chromising treatment on link pins, & the heat treatment of rollers, pins, & plates. A great combination of chains for speedy & rowdy mountain riding.