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Bicycle chain device

  • US 9,714,067 B1
  • Filed: 02/29/2016
  • Issued: 07/25/2017
  • Est. Priority Date: 02/29/2016
  • Status: Active Grant
First Claim
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1. A bicycle chain device comprising:

  • a mounting bracket configured to be affixed to a bicycle that has a solitary bicycle front sprocket having a rotational center axis,a cage movably mounted to the mounting bracket so that the cage is positioned adjacent to the front sprocket, wherein the cage has a chain-receiving slot, through which a bicycle chain passes, andan actuator, which is configured to move the cage in accordance with a shifting operation of a bicycle rear derailleur.

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