• the display device You are using may not be compatible with your power meter.
  Read the manual for the display device.
• There may be radio wave interference.
  In locations or environments such as the following, A connection may not be established successfully due to radio wave interference.
  * Near television sets, PCs, radios, motors, etc., or In cars or trains.
  * Railroad crossings and the vicinity of Railroad tracks, television transmitter stations, radar bases, etc.
  * When used together with other cordless devices or certain lights.
  Change the connection environment and connect again.

Some functions are not available in regions where SHIMANO ID cannot be registered. Click here for details

Power accuracy improvement corrects the difference in power values due to the front gear's inner and outer positions.

The SHIMANO power meter receives the gear position information from a compatible Di2 rear derailleur and corrects the power values according to the inner and outer positions of the front gear.

Tap here for information on how to configure the settings for power accuracy improvement.

The following SHIMANO power meter models have this feature: FC-R9200-P and FC-R8100-P.

No, it does not. This model does not require a correction as the difference between the front gear's inner and outer power values is negligible.

1. Latest 12 speed SHIMANO power meter from Dura-Ace(FCR9200P) or Ultegra (FCR8100P)
2. Latest 12 speed Di2 rear derailleur from Dura-Ace RDR9250), Ultegra (RDR8150) or 105 (RDR7150)
3. SHIMANO application "E-TUBE PROJECT Cyclist"

Update the firmware on the compatible Di2 rear derailleur to the latest version, then configure the settings for power accuracy improvement.

Tap here for more information on how to configure the settings for power accuracy improvement.

Open E-TUBE PROJECT Cyclist and tap the bike registered in Mybike to find the instructions. Follow these instructions to configure the settings.

The instructions will not appear in the following cases:

• If your bike is not registered in Mybike.
• If the Di2 rear derailleur information is not stored in the app.
• If you have selected 'Do not show this next time'.

In case of the above, please refer to the manual to configure the settings.

Yes, the settings for power accuracy improvement will only need to be configured once. Once configured, the settings will be saved. Some settings will need to be reconfigured after replacing the Di2 rear derailleur or power meter.

Your power meter may not be communicating with the Di2 rear derailleur components correctly.

Refer to (1) and (2) below to reconfigure the settings.

(1) ANT communication on the Di2 rear derailleur is disabled: Connect the Di2 system to E-TUBE PROJECT Cyclist, then go to Customize screen ＞ Wireless settings and enable ANT communication.

(2) A different bike's rear derailleur is paired with the power meter: Connect your power meter to E-TUBE PROJECT Cyclist, then go to Customize screen ＞ Power accuracy improvement to see the information on the paired rear derailleur.

If the paired rear derailleur is on a different bike, unpair it. Then, connect the rear derailleur you want to pair with the power meter to the app and reconfigure the settings for power accuracy improvement.

Tap here if your bike is registered in Mybike.

Tap here if your bike is not registered in Mybike or if you are not sure whether your bike is registered in Mybike or not.

Yes, you can.

Tap here if your bike is not registered in Mybike.

Tap here for information on how to register your bike in Mybike.

SHIMANO CONNECT Lab does not have a function that allows you to edit the ride data acquired without the power accuracy improvement.

See the power consumption table.

It is necessary in order to connect to multiple devices for displaying and logging data.
For example, Bluetooth® LE is designed for 1:1 communication, therefore the power meter cannot connect to other devices while it is connected to a smartphone. Using ANT® allows the power meter to connect to multiple devices. Also, Bluetooth® LE and ANT® do not use the same communication protocol, allowing you to choose which one to use as required.
In particular, to receive force vector data on your Garmin® device, you need to set up both ANT® and Bluetooth® LE for data transmissions.
Click here for the recommended connection method.
Note that enabling multiple data transmissions will drain the power meter battery faster. Click here for information on the hours of continuous use of a power meter.

• A wireless connection may not yet be established between the power meter and the display device. Click here for more information on this setup procedure.
• the power meter battery may be depleted. Check the battery level. If the battery level is low, charge the power meter battery. Click here for more information.
• the left crank connector may be detached. Remove the outer cap and Check that the connector is attached. If the connector is detached, contact your place of purchase or A distributor for assistance. Click here for more information.

When both ANT® and Bluetooth® LE are enabled for data transmissions, based on user requirements, turning one of them off can reduce the battery consumption of your power meter.
However, to receive force vector data on your Garmin® device, you need to set up both ANT® and Bluetooth® LE for data transmissions.
Click here for information on the hours of continuous use of a power meter.

You need to configure settings in E-TUBE PROJECT, enable power meter to device communication, upload data to our server, and use SHIMANO CONNECT Lab. Click here for more information.

It may be affected by the wireless communication environment or already paired devices. Referring to the document here, try to perform pairing several times by following 6 to 8 in STEP 2 in an environment where there are no other wireless devices.

To receive force vector data on your Garmin® device, you need to set up both ANT® and Bluetooth® LE for data transmissions. Click here for more information.

When data is received via Garmin® Connect IQ™, part of the data may not be analyzed. Using Bluetooth® LE communication concurrently enables the data to be displayed. Click here for more information.

Select [Force Vector Viewer] as an item to be displayed on at least one of the multiple screen settings of your Garmin® device.

To receive force vector data on your Garmin® device, you need to set up both ANT® and Bluetooth® LE for data transmissions. Click here for more information on this setup procedure.

Wahoo devices are not capable of receiving force vector data using Bluetooth® LE communication. Please use ANT® communication. Click here for more information.

Check that the settings on the display device match the data transmission settings on your power meter. In particular, when using a Garmin® device, you need to use Garmin® Connect IQ™ and configure ANT® and Bluetooth® LE communication settings accordingly. Click here for more information.

Always use the latest version of the power meter firmware.
Click here for how to update the firmware to the latest version.

We do not recommend that you keep your eyes fixed on the display while riding outdoors. It is dangerous. Force vector data should be logged as a ride log and be used for analysis on SHIMANO CONNECT Lab. To see the display in real-time, exercise caution to ensure your safety such as using a bike roller stand indoors.

Each data is treated as individual ride data. We recommend that you manage one of the data as your ride log.

Perform magnet calibration correctly. Click here for more information on this procedure.

Update the firmware on your power meter to the latest version, then configure the settings for power accuracy improvement.

Tap here for information on how to configure the settings.

If the power values still appear to be inaccurate, perform a zero offset calibration. Tap here for more information.

There are several types of power meters, such as crank-based, pedal-based, and hub-based power meters. Differences in power values may occur due to the following factors,

• The position of the measurement sensor.
• Altering calculation and calibration methods.
• The difference in the chain drive efficiency between the rear and front.
• The difference due to the method (magnet or accelerometer) used to measure cadence (= time).
• The difference in cadence log data due to differences in the communication protocol standard between BLE and ANT.
• The difference in calculationof received values by 3rd party headunit (same powermeter data can result is slightly different values on different headunits.

When you stop pedaling while riding your bike, the power or cadence data immediately before you stop pedaling may be displayed or logged for up to 3 seconds. SHIMANO power meters use a magnet for better pedaling start response, allowing your cadence to be measured at the minimum of 20 rpm. Secondly the magnet makes it possible to implement the super detailed force vector measurements as well.

Some problems may have occurred during zero offset calibration. Check that the connector is attached correctly and perform zero offset calibration again. Click here for more information.

The magnet may be missing or improperly installed.
If the magnet is missing or improperly installed, contact your place of purchase or a distributor for assistance.

Another cadence sensor may have been installed.
If another sensor is installed, uninstall it or disable the setting.

• You may be using A USB hub for charging. do not use A USB hub.
• the charging cable may be disconnected. If the power meter still does not charge using A different PC or USB adapter, replace the charging cable. Click here for more information.

Setting Force Vector Viewer to the same data field again may resolve the problem.

When connecting a Force Vector mode power meter to your Garmin Edge® via Connect IQ™, you need to select an activity profile that has Force Vector Viewer set to a data field. ​
Also, if the Force Vector Viewer data field is not displayed when logging starts especially after waking up from sleep mode, data may not be logged into the Garmin Edge®. ​Using your Garmin Edge® with the automatic sleep mode turned off may resolve the problem.

Try resetting the power meter hardware.

1. Press and hold the button on the power meter control unit for 15 seconds.
2. Release the button to complete the hardware reset.
3. Once the hardware reset is complete, the LED illuminates and the battery level is displayed.