Patent ID: 8249782

Claim:
A method for electronically servo-assisting an electronically servo-assisted bicycle gearshift, comprising the sequential steps of: a) starting a displacement of an actuator from a current position to a position of engagement of a chain on an extreme toothed wheel of a gearshift group, b) preselecting a destination toothed wheel of the gearshift group, c) stopping the displacement when the actuator is in a position of engagement of the chain on the destination toothed wheel, wherein the step b) of preselecting a destination toothed wheel comprises the steps of providing an end of gearshifting request signal, comparing in response to the end of gearshifting request signal the current position of the actuator with positions of the actuator for engagement of the chain with a respective toothed wheel of the gearshift group, and preselecting as the position for engagement on the destination toothed wheel one of the positions of the actuator adjacent to the current position.