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Welcome to the EPAspeed Team — Experience the Next Level of E-Bike Tuning
You’ve just unlocked a powerful, firmware-resistant tuning solution with advanced Bluetooth functionality.
EPASPEED 1.1 B.TUNING FOR GIANT – INSTALLATION GUIDE
Important:
• Keep the bike’s engine TURNED OFF during installation.
• Remove the battery form the e-bike according to the manufacturer manual
STEP 1 – Preparation for Installation
Before beginning the installation, ensure you have the following tools ready:
1. Hex Key H2.0
2. Hex Key H2.5
3. Hex Key H3
4. Hex Key H8
Pre-installation Steps:
• Switch OFF the e-bike.
• Remove the battery from the e-bike following the manufacturer's instructions.
Step 2. Crank Removal
1. Using a Hex Key H8, unscrew and remove the crank bolt from the left crank arm.
2. If the crank arm is not self-extracting, use a crank puller to remove it.
3. Carefully pull the crank arm off the motor’s central axis and set it aside
STEP 3 – engine cover removal
1. Using a Hex Key H2.5, unscrew the screws securing the lower motor cover.
2. Carefully remove the lower motor cover.
3. Using a Hex Key H2, H2.5, and H3 unscrew the two screws securing the side motor cover.
4. Remove the side motor cover and place it aside safely.
STEP 4 - Disconnecting Connectors from the Motor
1. Disconnect the Display Connector
Using a pair of pliers, carefully grasp and pull the display connector straight out from the motor housing.
Do not twist or bend the connector during removal to avoid damage to the pins.
2. Disconnect the Speed Sensor Connector
In the same manner, disconnect the speed sensor connector by gently pulling it away from the motor using pliers.
Ensure a firm grip on the connector housing — avoid pulling on the cable itself.
STEP 5 – Installing the EPAspeed Tuning Module
1. Connect the EPAspeed Module
Replace the original motor connectors with the corresponding EPAspeed connectors.
2. Attach the Display Connectors
Plug the e-bike connectors (previously disconnected from the motor in Step 4) into the matching connectors on the EPAspeed
Ensure each connector is fully inserted and that the locking tabs are properly engaged.
3. Verify Wiring Configuration
Before reassembling the motor, visually inspect the wiring to confirm that all connections are correct and match the configuration shown in the reference diagram.
STEP 6: Verifying Tuning Functionality
1. Reinsert the battery into the e-bike.
2. Power ON the e-bike system.
3. Manually rotate the rear wheel and check the e-bike display to ensure speed is being detected and displayed. The EPAspeed is set by default to 50 kmh.
4. Once the tuning function is confirmed, follow the next steps below:
Pairing the EPAspeed with the EPAspeed App
1. Install the EPAspeed App
Download and install the EPAspeed App from the Google Play Store or Apple App Store.
2. Enable Bluetooth
Activate Bluetooth on your mobile device.
3. Launch the App
Open the EPAspeed App
4. Connect to the Device
In the list of available devices, select the address in bold characters.
o If the device does not appear verify the following:
- The e-bike is switched ON.
- Your mobile device is within 5 meters of the e-bike.
- Bluetooth is enabled on your phone.
5. App Functionality
Once paired, you can use the app to:
- Control tuning functions
- Monitor ride data
- Adjust the speed limit and other settings
STEP 7 – Positioning the Tuning Module for Optimal Bluetooth Signal
1. Position the Module Correctly
Ensure the module is installed with the Bluetooth logo facing outward, away from the engine. This orientation improves signal strength and ensures optimal wireless connectivity.
2. Ensure the module is not obstructed by metal components or enclosed within the frame.
STEP 8 – Reinstalling the Motor Cover
1. Position the EPAspeed module and all connected wiring neatly into the available space inside the motor compartment.
2. Ensure that the EPAspeed module is oriented with the Bluetooth logo facing outward for optimal signal strength.
3. Refit the motor cover to its original mounting position.
4. Secure the cover using the appropriate screws and tighten them evenly.
