Bicycle electric component

A bicycle electric component, comprising:

• a detector to detect an operational state of a bicycle;
• and
• a wireless communicator configured to receive a wireless signal, the wireless communicator including a sensitivity changer to change a sensitivity of the wireless communicator, the sensitivity changer increasing the sensitivity of the wireless communicator in a state where the detector detects the operational state of the bicycle, wherein
• the wireless communicator includes a receiving circuit and an antenna, and
• the sensitivity changer includes a plurality of paths and an electrical switch to electrically connect the receiving circuit to the antenna via one of a first path and a second path, the first path having a gain larger than a gain of the second path, the gain of the second path being non-zero.

A bicycle electric component comprising:

• a detector to detect an operational state of a bicycle;
• and
• a wireless communicator configured to receive a wireless signal, the wireless communicator including a sensitivity changer to change a sensitivity of the wireless communicator, the sensitivity changer increasing the sensitivity of the wireless communicator in a state where the detector detects the operational state of the bicycle, wherein
• the wireless communicator includes a receiving circuit and an antenna, and
• the sensitivity changer includes a plurality of band pass filters and an electrical switch to electrically connect the receiving circuit to the antenna via one of the plurality of band pass filters,
• the plurality of band pass filters includes a first band pass filter and a second band pass filter, the wireless signals pass through the first band pass filter, the wireless signals do not pass through the second band pass filter, and
• the sensitivity changer is configured to switch the electrical switch to electrically connect the receiving circuit to the antenna via the second band pass filter to block the wireless signal in a state where the wireless communicator has not received the wireless signal for a tenth threshold time period.

A bicycle electric component, comprising:

• a detector to detect an operational state of a bicycle;
• and
• a wireless communicator configured to receive a wireless signal, the wireless communicator including a sensitivity changer to change a sensitivity of the wireless communicator, the sensitivity changer increasing the sensitivity of the wireless communicator in a state where the detector detects the operational state of the bicycle, wherein
• the wireless communicator includes a receiving circuit and an antenna, and
• the sensitivity changer includes a plurality of band pass filters and an electrical switch to electrically connect the receiving circuit to the antenna via one of the plurality of band pass filters,
• the plurality of band pass filters includes a first band pass filter and a second band pass filter, the wireless signals pass through the first band pass filter, the wireless signals do not pass through the second band pass filter, and
• the sensitivity changer is configured to switch the electrical switch to electrically connect the receiving circuit to the antenna via the second band pass filter to block the wireless signal in a state where the detector has not detected the operational state of the bicycle for a ninth threshold time period.

A bicycle electric component, comprising:

• a wireless communicator configured to receive a wireless signal;
• a controller electrically connected to the wireless communicator;
• a casing having an inner shield member, the wireless communicator and the controller are disposed in the casing, the wireless communicator is disposed in an interior of the inner shield member, a portion of the inner shield member being disposed between the wireless communicator and the controller;
• and
• an electromagnetic shield including a shield member to cover at least a part of the wireless communicator in a closed state, the shield member of the electromagnetic shield being a separate member with respect to the casing, the shield member being disposed in the internal space.