KMC Z50 Bicycle Chain (6-7-Speed, 1/2 x 3/32-Inch, 116L, Dark Silver/Brown) Bicycle chain from precision bicycle component maker KMC is compatible with five-, six-, and seven-speed use IG and HG compatible; bushing-less construction is good for smooth transition and virtually noiseless functioning Outer plate chamfering ensures accurate steering within drivetrain; inner plate chamfering enables expeditious articulating Weight of 369 grams No masterlink included; will need a chain tool/pliers to install chain