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Master link

Figure 1: A traditional master link, compatible with straight chainlines and widely spaced sprockets.
Figure 2: Schematic of a modern master link.
Figure 3: A SRAM Powerlink, joining two ends of a chain.
Figure 4: A master link with a slightly raised profile. Note that the embossed arrow should point toward the inside of the chain-loop. Note also the more prominent pin excess.
Figure 5: Master link pliers. They fit over the rollers to take the hard work out of link removal.

A master link or quick-release link is a roller chain accessory that allows convenient connection and disconnection of a chain without the need for a chain tool.[1] It acts as a set of the chain's outer plates, so joining two sets of the chain's inner plate ends. Such master links may or may not be re-usable.[2] A chain tool is nonetheless needed to adjust a chain's length, for example to shorten a new chain before connecting its ends. They are used on bicycles and motorcycles.[3]

  1. ^ Sheldon Brown. "Sheldon Brown's Bicycle Glossary: Master Link". Retrieved 2011-06-26.
  2. ^ Josh Patterson (Mar 19, 2013). "Trail Tech: Mastering master links". BikeRadar. Retrieved 2013-06-08. Eight- and nine-speed chains use a PowerLink, which can be reused. SRAM's 10 and 11-speed master links are called PowerLocks and are not to be reused.
  3. ^ Paul Dean (May 1, 2009). "Zipty Racing Masterlink Chain Tool Set". Cycle World. Retrieved 2013-06-08.

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