A bicycle shift control apparatus comprises a threshold value setting unit
that sets a threshold value of a running condition for shifting a bicycle
transmission, a decision unit that decides if a current running condition
value passes the threshold value, and a tentative shift unit that sets a
tentative shift of the bicycle transmission when the decision unit
decides that the current running condition value passes the threshold
value. A canceling unit cancels the tentative shift if the decision unit
decides that the current running condition value varies from a previous
running condition value by a determined value.