Sena BiKom 20 User Guide

Firmware Version: 1.3.x

Last updated on Jun 17, 2025

BiKom 20

CYCLING COMMUNICATION SYSTEM

The firmware version 1.3.x indicates that this manual is applicable to all firmware updates within the version 1.3 series.

QUICK REFERENCE

Key:

Type Operation Button Duration
Basic operations Power on C & + Press for 1 second
Power off C & + Single tap
Volume up/down + or - Single tap
Phone pairing C Press for 5 seconds
Phone Answer phone call C Single tap
End phone call C Press for 2 seconds
Reject phone call C Press for 2 seconds
Activate voice assistant C Press for 3 seconds
Speed dial + Press for 3 seconds
Play/Pause music C Press for 1 second
Track forward/back + or - Press for 1 second
Mesh Intercom™ Mesh Intercom on/off C Single tap
Channel selection C Double tap
Mesh grouping C Press for 5 seconds
Reset mesh C Press for 8 seconds
Audible Bicycle Computer Shimano pairing C + + Press for 10 seconds, then single tap
Factory reset C + + Press for 10 seconds, then double tap
Troubleshooting Fault reset C & + Press for 8 seconds

BEFORE GETTING STARTED

Sena Cycling App

Download the Sena Cycling app from the Google Play Store or the App Store.

[Sena Logo] [QR Code for App Download]

ABOUT THE BiKom 20

Key Features

[Diagram of BiKom 20 unit with numbered parts]

  1. (+) button
  2. Center button
  3. (-) button
  4. Status & charging LED
  5. USB-C charging port

Package Contents

INSTALLATION

Strap Mount

  1. [Diagram showing strap mount attachment to helmet strap]
  2. [Diagram showing BiKom 20 unit attached to strap mount]
  3. [Diagram showing user wearing helmet with BiKom 20]

Clip Mount for Caps

  1. [Diagram showing clip mount attachment to cap]
  2. [Diagram showing BiKom 20 unit attached to clip mount]
  3. [Diagram showing user wearing cap with BiKom 20]

BASIC OPERATION

Button Actions:

Charging

[Diagram showing charging port and LED indicator for charging status]

It takes 2.5 hours to fully charge.

Power On/Off

Mute/Unmute Mic

Use the swivel microphone arm to mute/unmute the microphone.

Volume

[Diagram showing volume adjustment with + button]

MESH INTERCOM

The BiKom 20 provides two Mesh Intercom modes:

Open Mesh

[Diagram illustrating Open Mesh with users on different channels]

Group Mesh

[Diagram illustrating Group Mesh with users in a private group]

Switch to Mesh 2.0 for Backward Compatibility

Mesh 3.0 is the latest Mesh Intercom technology, but to communicate with legacy products using Mesh 2.0, please switch to Mesh 2.0 using the Sena Cycling app.

Open Mesh

You can freely communicate with virtually unlimited users in each of the 6 available channels. The default Mesh Intercom channel is 1.

Mesh Intercom On/Off

Channel Selection

  1. Enter the channel setting. [Diagram showing double tap] "Channel setting, 1"
  2. Navigate between channels. [Diagram showing single tap] or [Diagram showing single tap] "#"
  3. Confirm and save the channel. [Diagram showing single tap] "Channel is set, channel #"

The channel will be automatically saved if no buttons are pressed for 10 seconds on a specific channel. The channel will be saved even if the BiKom 20 is turned off.

Group Mesh

By using group mesh, a private conversation group can be created for up to 24 participants.

Create a Group Mesh

[Diagram illustrating group mesh creation]

  1. Users (You, A, and B) enter the mesh grouping by pressing the center button for 5 seconds while staying in the open mesh. They don't need to be on the same open mesh channel to create a group mesh together. [Diagram showing 5s press] "Mesh grouping"
  2. When mesh grouping is completed, it automatically switches from open mesh to group mesh. "Group Mesh"

Join an Existing Group Mesh

When you are in a group mesh, you can invite other users in open mesh to join the group.

[Diagram illustrating joining an existing group mesh]

  1. You and the other users, C and D, enter mesh grouping by pressing the center button for 5 seconds. [Diagram showing 5s press] "Mesh grouping"
  2. When mesh grouping is completed, the other users, C and D, automatically join the group mesh while leaving the open mesh. "Group Mesh"

New participants (C and D)

Toggle Open/Group Mesh

You can toggle between open mesh and group mesh without resetting the mesh.

[Diagram illustrating toggling between Open and Group Mesh]

If you have never participated in group mesh, you cannot toggle between open mesh and group mesh. You will hear a voice prompt saying, "No group available."

Reset Mesh

If the BiKom 20 resets the mesh while in open mesh or group mesh, it will automatically return to open mesh, channel 1.

[Diagram showing 8s press] "Reset Mesh"

USING WITH A SMARTPHONE

Phone Pairing

  1. [Diagram showing 5s press] "Phone pairing"
  2. [Diagram showing connected Bluetooth device] BiKom 20

To cancel phone pairing, press any button.

Making and Answering Calls

Reject a Call

[Diagram showing 2s press]

Activate Voice Assistant

[Diagram showing 3s press]

Speed Dial

Assign Speed Dial Presets

Speed dial presets can be assigned using the Sena Cycling app.

Use Speed Dial Presets

  1. Enter the speed dial menu. [Diagram showing 3s press] "Speed dial"
  2. Navigate forward or backward through speed dial preset. [Diagram showing 1x tap] or [Diagram showing 1x tap]

1. Last number redial
2. Speed dial (1→2→3)
3. Cancel

3. Tap the center button to confirm. [Diagram showing 1x tap] "Speed dial(#)"

Music

AUDIBLE BICYCLE COMPUTER

The Audible Bicycle Computer (ABC) of the BiKom 20 connects to cycling sensors and provides real-time voice notifications about your ride. By simply pairing the BiKom 20 with Shimano's Digital Integrated Intelligence (Di2) system, you can receive voice updates without interruption.

Pairing BiKom 20 with Shimano Di2

To use the ABC feature with Shimano's Di2 system, you need to pair the BiKom 20 with the Di2 system first.

Shimano Di2 System

Put your device into Bluetooth connection mode.

BiKom 20

  1. Enter the configuration menu. [Diagram showing 10s press] "Configuration menu"
  2. Navigate to Shimano pairing option. [Diagram showing 1x tap] "Shimano pairing"

3. Wait until you hear a voice prompt. "Shimano connected"

Voice Notifications

Once Shimano pairing is complete, the BiKom 20 will deliver the following types of voice prompts.

Shifting Mode Selection

Based on your selection, a voice prompt will inform you of the current shifting mode. The Di2 system provides three shifting modes.

Gear Shifting Up/Down

When you shift gears, a voice prompt will inform you of your current gear position.

Battery Status

When the battery level drops below 10 percent, a voice prompt will notify you.

FIRMWARE UPDATE

You can update the firmware via Over-the-Air (OTA) directly from the settings in the Sena Cycling app.

TROUBLESHOOTING

Factory Reset

To restore the BiKom 20 to its factory default settings, simply use the factory reset feature.

  1. [Diagram showing 10s press] "Configuration menu"
  2. [Diagram showing 2x tap] "Factory reset"
  3. [Diagram showing 1x tap] "Headset reset, good-bye"

Fault Reset

If the BiKom 20 is on but unresponsive, you can perform a fault reset to restore functionality.

Ensure the USB-C charging cable is disconnected, then press and hold the (+) and center button simultaneously for 8 seconds until it restarts. All settings will remain unchanged. [Diagram showing 8s press]

Models: 20, BiKom 20 Cycling Communication System, BiKom 20, Cycling Communication System, Communication System, System

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