GT73 Electric Motorbike

Yes! You can customize and upgrade your GT73. For example, upgrading to a 72V controller and battery can increase the top speed to 50 mph.

📺 Check out these upgrade videos:

🔹 GT73 Upgrade 72v motor

🔹 GT73 Upgrade 50 MPH

• GT73 Upgraded 60v battery

⚠️ Important Notice:

Please note that any modifications will void the warranty. Make sure to proceed with caution and ensure all upgrades are done safely. 🚀

📺 For a detailed video tutorial, watch here: https://www.youtube.com/shorts/tuAWwDwLAqA

1. Enter Speed Settings Mode

• Press and hold the S button and the Power button at the same time to enter P01 settings mode.

2. Adjust the Speed Limit

• Use the S button to toggle between speed settings:
• 0: Speed limit enabled (max 16 mph)
• 1: Speed limit removed (max 37 mph)

3. Save and Exit

• Press and hold the S button and Power button again to save the setting and exit.

You can repeat these steps anytime to switch between limited and unlimited speed modes. 🚀

The most common cause is a brake lever reset problem.

1. Inspect the Throttle & Cables

• Accidentally turned off the throttle (press the power button three times in a row to turn the throttle off and on)
• Check for visible damage on the throttle and cables.
• Ensure all connectors are securely plugged in.

2. Check the Brake Light

If the brake light stays on without pressing the brake, unplug the left or right brake handle cable connectors one at a time.

3. Identify the Faulty Brake Handle

• Unplug one brake handle cable at a time (do not unplug both at once, or the P gear won’t release).
• If unplugging the left brake cable turns off the brake light, the left brake handle is faulty.

4. Adjust the Brake Handle Screw

• Reconnect the brake handle cable.
• Use a 2mm Allen wrench to tighten the screw (turn 1-2 times clockwise).
• Observe the brake light—if it stays off, the issue is resolved.
• Video: https://www.youtube.com/watch?v=cfQwhrgf3CU

5. Test the Throttle

• Turn the throttle and check if the motor responds.
• If the motor runs normally, the problem is fixed.

📺 For a detailed video tutorial, watch here: https://www.youtube.com/watch?v=wzY7IiMW9Cc

1. Brake Sensor Issue – Check if the brake light stays on even when you are not pressing the brake handle. If it does, the brake sensor may be engaged, preventing the motor from working.
2. Motor Gear Damage – The motor gear might be damaged and need inspection or replacement.
3. Throttle Handle Malfunction – A faulty throttle could prevent acceleration.
4. Throttle Turned Off by Mistake – Press the power button three times in a row to toggle the throttle on/off. Ensure it is enabled.

🔧 Next Steps:

• Try these troubleshooting steps and see if the issue is resolved.
• If the problem persists, please record a video showing the issue and send it to our support team for further assistance.

If you see a P1 Error indicating an invalid NFC card, please try the following steps:

1️⃣ Restore Factory Settings

• Reset the device to its factory settings and then try using the NFC card again.
• When swiping the NFC card, make sure to place it on the white [Riding'times] box below the screen.

📺 Video Guide: How to Restore Factory Settings

2️⃣ Re-Pair the NFC Card

If the issue persists, you may need to pair the NFC card with the screen manually.

📺 Video Guide: How to Pair the NFC Card

If you still experience issues, please contact our support team for further assistance! 🚲🔧

If your GT73 eBike shows Error Code E07, it usually indicates a Hall sensor connection issue.

• Check the Hall Sensor Cable Connection: Please disconnect the Hall sensor cable (located near the motor) and carefully reinsert it, ensuring it is properly aligned and fully seated. Once reconnected, restart the bike and check if the error code is resolved.
• Video guide

🔧 Next Steps:

• If the issue persists, record a video and contact support. If unresolved, the motor may need replacement under warranty—contact us for assistance.