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Electronic shifting systems and methods

  • US 8,909,424 B2
  • Filed: 12/12/2012
  • Issued: 12/09/2014
  • Est. Priority Date: 10/11/2012
  • Status: Active Grant
First Claim
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1. A wireless control system for a bicycle, comprising:

  • at least one shift actuator generating an input signal when actuated;

    a master control unit transmitting a shift signal responsive to the input signal;

    at least one electromechanical gear changer including a gear changer control unit, the gear changer control unit receiving the shift signal from the master control unit and controlling the at least one electromechanical gear changer corresponding to the received shift signal, the gear changer control unit listening for the shift signal during a part of an awake mode cycle time, the master control unit transmitting the shift signal for a message duration time which is greater than the awake mode cycle time.

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