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Bicycle shift control apparatus with preferential shifting

  • US 7,288,038 B2
  • Filed: 02/20/2004
  • Issued: 10/30/2007
  • Est. Priority Date: 02/25/2003
  • Status: Expired due to Fees
First Claim
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1. An automatic shift control apparatus for a bicycle that has a front transmission and a rear transmission, each transmission having a plurality of gear steps, wherein the apparatus comprises:

  • a travel condition sensing unit; and

    a control unit that operates one of the front transmission or the rear transmission in priority to the other one of the front transmission or the rear transmission based on a first travel condition;

    wherein the control unit operates the other one of the front transmission or the rear transmission in priority to the one of the front transmission or the rear transmission based on a second travel condition.

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