Sun E350 Electric Trike Max SpeedUpdated an hour ago
Q: What is the maximum motor assisted speed of the Sun E350 Electric Trike, and can it be increased beyond 10 mph?
A:
The Sun E350 Electric Trike is factory-set to a maximum speed of 10 miles per hour (mph) when using electric assist. While Class 2 e-bike regulations in the U.S. allow motor assistance up to 20 mph, the E350 is intentionally limited to 10 mph to enhance rider stability, control, and overall safety, particularly for those who prioritize comfort and confidence over speed.
NOTE: The trike can exceed 10 mph when pedaled without motor assistance. The 10 mph limit only applies to motor-assisted speed.
Why is it set to 10 mph?
The 10 mph limit strikes a balance between performance and safety. The E350’s 3-wheel platform is designed for comfort, utility, and rider confidence, making it especially well-suited for older adults or those with mobility considerations. A lower speed helps prevent tipping, improves balance, and creates a more predictable riding experience.
Can it be changed?
No, the 10 mph maximum speed cannot be increased. It is hard-coded into the trike’s controller and cannot be changed by the user or dealer.
However, riders can personalize their experience using the Bafang Go mobile app, which allows adjustments to how the motor behaves at each Pedal Assist level, within the fixed 10 mph cap.
The app allows for fine-tuning of each Pedal Assist level to better match the rider’s preferences.
Adjustable settings include:
Speed Limit (%): Adjusts what percentage of the 10 mph cap is used in each assist level
Max Output Power: Controls how much power the motor delivers
Acceleration – Controls how quickly the motor accelerates
Start Angle – Sets how far the pedal must rotate before assistance begins
These settings can help tailor the riding experience for comfort, responsiveness, or range—while still respecting the system’s top speed limit.
Click here to learn more about the Bafang Go App.