KMC E-Bike Chain SeriesThe E Bike chain specially designed for mid motors, have higher torsion resistance to cope with ruthless shifting and hi torques They have perfect shifting thanks to Double X Bridge Triple X Durability, Unparalleled Tensile Strength Non Directiol Design: assembly of this chain is independent of direction. It allows maximum compatibility, no matter MTB or Race: this chain fits all Nickel Plated Silver or Silver Black. Included is a MissingLink These