How to Change a Class 2 E-Bike to Class 3: Unlock Your Kingbull's Speed Potential

Welcome, e-bike enthusiasts! Ever wondered how to fine-tune your ride for the perfect balance of effort and speed? One of the most impactful adjustments you can make is unlocking your e-bike's speed limit.

By understanding the differences between Class 2 vs. Class 3 e-bikes, you can tailor your experience to truly savor every journey—whether you're looking for a leisurely cruise or a more exhilarating commute. This guide will walk you through the precise P-setting adjustment to boost your performance safely.

Note: Before you perform this e-bike speed hack, always stay mindful of local laws and regulations to ensure a safe and responsible ride.

Class 2 vs. Class 3: What’s the Difference?

Most Kingbull electric bikes come factory-set as Class 2, meaning they have a throttle and a maximum assisted speed of 20 mph. By upgrading to Class 3, you unlock pedal assist (PAS) up to 28 mph, making it ideal for keeping up with city traffic or shortening your commute.

Step-by-Step Guide: How to Adjust the Pedal-Assist Speed Limit

Ready to unleash the full potential of your electric bike? Follow these steps to access the ebike display settings and unlock Class 3 performance.

Step 1: Enter the Settings (P-Gear) Menu

With your Kingbull display screen powered on, press and hold the "+" and "-" buttons simultaneously for about 2-3 seconds. This will take you into the P-setting interface.

Step 2: Navigate to P08 (Speed Limit Setting)

The P08 menu is the specific parameter that controls the maximum speed of your motor. Briefly press the Power button repeatedly until "P08" appears on the screen.

Step 3: Enter the Unlock Password

For security and to prevent accidental changes, the P08 setting is password-protected.

1. Short-press the "+" button to enter the password input screen.

2. The default password is 1010.

3. Use the "+" button to select the number and the Power button to confirm and move to the next digit.

4. After entering 1, 0, 1, 0, press the power button one final time to verify.

Step 4: Increase Your Speed Limit to 28 MPH

Once the password is accepted, you will see the current speed limit (usually 32km/h or 20mph). Use the "+" button to increase the value. To achieve Class 3 status, set the limit to 45km/h (equivalent to 28 mph).

Step 5: Save and Exit

To finalize your new ebike speed settings, press and hold the "+" and "-" buttons simultaneously again until the display returns to the main screen. Your changes are now saved!