Color: Navy Blue
Style: Single-Battery
What's in the box

Front and rear fender X 1
Kickstand X 1
Battery and charger X 1
Thumb throttle X 1
Front and rear light X 1
Tool bag X 1

Free shipping

Shipment:Ship within 48 hours

Once your order is received, a confirmation will be sent by email or text, it takes us 48 hours to prepare your order, and you will be notified as soon as it ships.

Orders placed on weekend will be arranged on next business day.

Color: Navy Blue
Style: Single-Battery
Product information

Qualisports INC

Last updated August 8th, 2023


Qualisports Values Your Privacy

 At Qualisports, we are committed to protecting your personal privacy. We understand the importance of safeguarding your information and maintaining its security. This Privacy Notice outlines how Qualisports collects, uses, and protects your information.


 By using our products, services, or visiting our website, you consent to the collection, use, and processing of your information as described in this Privacy Notice.


 This Privacy Notice applies to the information collected by Qualisports through our website, products, and services, as well as interactions with us through various means.

Information Collection

 We only collect personal information that you voluntarily provide to us or that is necessary for the purposes described below. We do not collect sensitive information such as health or biometric data.

Types of Information We Collect:

 Contact information (name, email, phone number)

Location information

Order and purchase information

User preferences and settings

Interaction history with our products and services

We may also collect information from third-party service providers engaged by Qualisports or when you interact with them to access our services.

Children's Privacy

 Our products and services are not intended for children under the age of 16. We do not knowingly collect personal information from individuals under 16 years of age. If we become aware that we have collected personal information from a child under 16, we will take steps to delete it.

Information Use

 We use your personal information for the following purposes:

 Providing and improving our products and services

Processing orders and payments

Sending relevant communications, updates, and marketing materials

Analyzing user preferences and behavior for better service

Responding to customer inquiries and support requests

Complying with legal obligations and protecting our rights

Third-Party Service Providers

 We may share your information with third-party service providers to facilitate our services. These providers are required to maintain the confidentiality and security of your information.


 We employ appropriate security measures to protect your personal information. However, no data transmission over the internet can be guaranteed as 100% secure. You are responsible for maintaining the security of your account and password.

Cookies and Analytics

 We use cookies and analytics tools to collect information about your interactions with our website. These tools help us improve our services, understand user behavior, and enhance your experience. You can manage your cookie preferences through your browser settings.

Links to Third-Party Sites

 Our website may contain links to third-party sites. We are not responsible for the privacy practices or content of these sites. Please review their privacy policies before providing any information.

Your Rights

 You have the right to access, modify, or delete your personal information. To exercise these rights or if you have any questions about our privacy practices, please contact us at

Changes to Privacy Notice

 We may update this Privacy Notice from time to time to reflect changes in our practices. The updated version will be posted on our website with the date of the last update.


Contact Information


If you have any questions or concerns regarding our Privacy Notice or the use of your personal information, please contact us at










UL Sticker

Discover peace of mind with our eBikes featuring the UL sticker on the frame. While some batches may lack this physical marker, rest assured that all our eBikes meet stringent safety standards. Verify your bike's authenticity and compliance by scanning the QR code online. Your safety, our priority.

Learn More
A second battery hidden in the dolphin's frame
A second battery hidden in the dolphin's frame


The ebike with optional dual battery offers increased range flexibility for riders, allowing them to easily switch to the secondary battery when needing extra power.

Additionally, the removable frame battery with a built-in USB port serves as a convenient power bank, enabling riders to charge their devices on the go.

Qualisports-branded 500W motors
Qualisports-branded 500W motors


The powerful motor offers strong acceleration and assists with pedaling, making it easier to tackle hills and longer distances. Additionally, the folding design allows for convenient storage and transportation, making it perfect for urban commuters and travelers with limited space. The combination of a compact foldable frame and a high-powered motor ensures an efficient and enjoyable riding experience, suitable for various situations and terrains.

Bicycle oil brakes with Qualisports brand logo
Bicycle oil brakes with Qualisports brand logo


With fluid in the master cylinder, hydraulic brakes have a much more efficient braking mechanism to force the brake pads together when the lever is pushed.

Multiplying the amount of effort put into the lever makes it easier to brake.

The KT-7 display plugged in USB cable
The KT-7 display plugged in USB cable


The LCD display lets you easily see some parameters like battery capacity, current speed, pedal assist level, and travel distance.

It has a USB for your phone charging.


Ride with confidence! Qualisports folding ebikes proudly certified with UL 2849.


We prioritize your privacy and safeguard your personal information, ensuring a secure shopping experience.


We ensure your satisfaction with exceptional customer support from purchase to post-sale.


Expect reliable and prompt delivery with real-time tracking to get your folding eBike to your doorstep safely.




Battery Type: Samsung Lithium-ion Battery
Battery Capacity: Seat post battery 48V 10.5Ah; Tube battery: 48V 7AH
Charging Time: 3-4Hrs/Dolphin;
4-4.5Hrs/Dolphin Plus
Motor Brand: Qualisports USA Custom Manufactured 500W
Max. Speed : 20 mph
Display Brand: KT-7 LCD Display with USB Charging Port
Drive Mode: Cadence Sensing Pedal Assist/Trigger Throttle (12 Magnet Sealed Sensor)-Normal Biking-Cruise-Walk Assist

Max. Load: 300 lbs
Frame Type: Mid-Step, Folding
Saddle: KNUS, Active
Seat Post: Custom, 57mm, Alloy (Contains the Battery)
Brake Details: Custom 2 piston Hydraulic Brakes with power coutoff
Gearing Details: 7 Speed 1x7 Shimano Tourney Derailleur, MF-TZ500-7 14-28 Tooth Thread
Cranks: Prowheel Forged Alloy, 165 mm Length, 52 Tooth Chainring with Plastic Guard
Tire Brand: INNOVA, 20" x 2.30"

Explore Rich Scenarios

We believe in the power of exploring rich scenarios on two wheels. Our bikes are designed to take you on adventures that go beyond the beaten path, allowing you to discover new sights, sounds, and experiences along the way.

Featured post


We understand that choosing the perfect electric bike is essential, and we want to make sure all your questions are answered.

Let's explore the FAQ and discover why our folding eBikes are the perfect blend of convenience, efficiency, and fun!ers

We hope these answers help you get started on your biking journey! Remember, always ride safely and follow local laws and regulations.

How far can Qualisports bikes go on a single charge?

Distance differs on the terrain, weight of the cyclist, and the power mode you are using (pedal only, full Throttle, or pedal assist).

For a Single-battery Dolphin: The range is about 25 to 60 miles on a single charge using primarily electric power.
For a Dual-Battery Dolphin: The range is about 40 to 80 miles on a single charge using primarily electric power.
If you use the PAS, mileage can increase.  Some riders can achieve over 60/80miles when cycling in pedal-assist mode.

How to engage CRUISE mode

After power on, keep riding your Quali e-bike(speed>7km/h), then hold the DOWN button for about 2 seconds, the CRUISE mode will engaged, press any button or use brake will exit CRUISE mode.

Is the bike pre-assembled?

95% of the bikes are pre-assembled, with detailed installation videos for the front and rear fenders.

Qualibiker Reviews

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