Transmission with shift drum, angular sensor outputting rotation of shift drum as output value and control unit correcting output value

A transmission comprising:

• a shift drum rotated by an actuator;
• an angular sensor configured to output the rotation of the shift drum as an output value;
• and
• a control unit including a processor and configured to calculate a rotation angle of the shift drum from the output value,
• wherein the control unit has reference values of the output values at a first rotation angle and a second rotation angle of the shift drum, the second rotation angle being different from the first rotation angle,
• the control unit is configured to obtain the output values at the first rotation angle and the second rotation angle as a first output value and a second output value, respectively, and
• the control unit is configured to correct the output value output between the first rotation angle and the second rotation angle based on a difference between the first output value and the reference value at the first rotation angle and a difference between the second output value and the reference value at the second rotation angle.