1. Introduction
Thank you for choosing the ACTBEST Core Electric Bike. This manual provides essential information for the safe assembly, operation, maintenance, and troubleshooting of your new electric bicycle. Please read this manual thoroughly before your first ride and retain it for future reference. Proper use and maintenance will ensure optimal performance and longevity of your e-bike.
2. Safety Guidelines
Always prioritize safety when operating your electric bike. Failure to follow safety instructions can result in serious injury or damage to the bike.
- Always wear a helmet that meets safety standards.
- Obey all local traffic laws and regulations.
- Perform a pre-ride inspection before each use, checking brakes, tires, battery, and lights.
- Do not ride under the influence of alcohol or drugs.
- Be aware of your surroundings and ride defensively.
- Ensure the battery is securely locked in place before riding.
- Avoid riding in extreme weather conditions or on excessively rough terrain if not designed for it.
3. Setup and Assembly
Your ACTBEST Core Electric Bike arrives approximately 90% assembled. The remaining assembly steps are straightforward and can be completed using the included tools and instructions.
3.1 Included Components
Verify that all components are present in the package:
- Electric Bike (main frame with pre-assembled parts)
- Tools Kit
- Battery Key
- Charger
- User Manual (this document)
- Headlight
- Rear Reflector
3.2 Initial Assembly Steps
Follow the detailed instructions provided in the separate assembly guide for specific steps. General steps include:
- Unpack the bike and remove all protective packaging.
- Install the front wheel.
- Attach the handlebars and adjust their position.
- Install the seat post and saddle, adjusting to a comfortable height.
- Attach the pedals (note left and right pedal threading).
- Install the headlight and rear reflector.
- Ensure all bolts and quick releases are securely tightened.

Image: Main view of the ACTBEST Core Electric Bike, showcasing its overall design and components.
4. Operating Your Electric Bike
4.1 Battery Installation and Charging
The ACTBEST Core Electric Bike features a 48V 10.4AH removable built-in battery. This design offers waterproof, shockproof, and anti-theft properties for enhanced safety and durability.
- Installation: Insert the battery into its designated compartment in the frame and use the battery key to lock it securely in place.
- Charging: The battery can be charged while installed on the bike or removed. Connect the charger to the battery port and then to a standard power outlet. A full charge typically takes 4-6 hours.
- Range: A single charge provides a range of up to 40 miles using throttle mode or up to 55 miles with pedal-assist (PAS) mode, depending on terrain, rider weight, and assist level.

Image: Close-up of the removable 48V 10.4AH battery, highlighting its integrated design within the bike frame.
4.2 Riding Modes
Your e-bike offers three primary riding modes plus a walk boost mode:
- Manual Mode: Ride the bike like a traditional bicycle without any electric assistance.
- Pedal-Assist (PAS) Mode: The motor provides assistance as you pedal. The level of assistance can be adjusted via the LCD display. This mode extends battery range.
- Pure Electric (Throttle) Mode: Engage the throttle to propel the bike without pedaling. This mode consumes battery power more quickly.
- Walk Boost Mode: Provides low-speed assistance to help you push the bike when walking alongside it.

Image: Visual representation of the four riding modes: Electric, Pedal-assist, Pedal-only, and Walk Boost, showing riders in different scenarios.
4.3 LCD Display and Controls
The integrated LCD screen provides real-time information and allows you to control various functions:
- Speed Display: Shows current speed.
- Battery Level: Indicates remaining battery charge.
- Assist Level: Allows adjustment of pedal-assist intensity.
- Headlight Control: Turn the front light on/off.
4.4 Gear Shifting and Braking
The bike is equipped with a 7-speed transmission system and front and rear disc brakes.
- Gear Shifting: Use the shifter on the handlebars to change gears, adapting to different terrains and speeds. Shift smoothly to avoid strain on the drivetrain.
- Disc Brakes: The front and rear disc brakes provide reliable stopping power in various weather conditions. Apply both brakes simultaneously for effective and controlled stopping.

Image: Detailed view of the 1200W peak brushless motor and Shimano 7-speed transmission system on the rear wheel.
4.5 Suspension and Tires
The bike features dual front suspension and 27.5"x2.1" wider tires for a comfortable ride.
- Front Suspension: The front suspension fork minimizes bumps and vibrations, providing a smoother ride over varied surfaces.
- Tires: The 27.5"x2.1" tires are suitable for various terrains, including city roads, soil paths, and light travel. Maintain recommended tire pressure for optimal performance and safety.

Image: Illustration of the dual front suspension system, demonstrating how it absorbs impacts for a smoother ride compared to a rigid fork.

Image: Close-up of the 27.5"x2.1" wider tires, showing their tread pattern suitable for various road conditions like city, soil, and travel.
5. Maintenance
Regular maintenance is crucial for the safety, performance, and lifespan of your ACTBEST Core Electric Bike.
5.1 General Cleaning
- Clean the bike regularly with a damp cloth and mild soap. Avoid high-pressure washing directly on electrical components.
- Keep the chain clean and lubricated to ensure smooth gear changes and prevent wear.
5.2 Battery Care
- Charge the battery fully before the first use and after every ride.
- Store the battery in a cool, dry place when not in use, and avoid extreme temperatures.
- If storing for an extended period, charge the battery to 50-70% every 2-3 months.
- Do not expose the battery to direct sunlight or heat sources.
5.3 Brake and Tire Checks
- Regularly check brake pads for wear and replace them when necessary.
- Ensure brake levers are firm and responsive. Adjust cable tension if needed.
- Inspect tires for proper inflation, wear, and damage before each ride. Refer to the tire sidewall for recommended pressure.
5.4 Fastener Inspection
- Periodically check all bolts, nuts, and quick releases for tightness. Loose fasteners can lead to unsafe riding conditions.
6. Troubleshooting
This section addresses common issues you might encounter with your ACTBEST Core Electric Bike.
| Problem | Possible Cause | Solution |
|---|---|---|
| Bike does not power on | Battery not charged or not properly installed; Power cable loose; Display issue. | Ensure battery is fully charged and securely locked. Check all electrical connections. Contact support if issue persists. |
| Motor not assisting | PAS level set to 0; Brake levers engaged; Loose motor connection. | Increase PAS level on the display. Ensure brake levers are fully released. Check motor cable connection. |
| Short battery range | Low tire pressure; Frequent use of throttle; Riding uphill frequently; Heavy load. | Inflate tires to recommended pressure. Use pedal-assist more often. Reduce load. |
| Brakes feel weak | Worn brake pads; Loose brake cable; Contaminated rotors. | Inspect and replace brake pads. Adjust brake cable tension. Clean rotors with disc brake cleaner. |
| Unusual noises | Loose components; Dry chain; Derailleur misalignment. | Check all fasteners. Lubricate chain. Adjust derailleur if gears are skipping. |
If you encounter a problem not listed here or cannot resolve an issue, please contact ACTBEST customer support for assistance.
7. Specifications
Key technical specifications for the ACTBEST Core Electric Bike:
| Feature | Specification |
|---|---|
| Model Name | Core So (step over) 27.5” |
| Bike Type | Electric Bike |
| Age Range | Adult |
| Motor | Peak 1200W Brushless Motor |
| Top Speed | Up to 28 MPH |
| Battery | 48V 10.4AH Removable Built-in Battery |
| Charging Time | 4-6 hours |
| Max Range | Up to 40 miles (throttle) / 55 miles (PAS) |
| Number of Speeds | 7 |
| Wheel Size | 27.5 Inches |
| Tire Size | 27.5" x 2.1" |
| Frame Material | Carbon Steel |
| Suspension Type | Front |
| Brakes | Front and Rear Disc Brakes |
| Special Features | LCD Display, Adjustable Seat, Headlight, Rear Reflector |
| Max Load Capacity | Up to 350 lbs |
| Recommended Rider Height | 5'7" - 6'3" |
| Color | Gray |
8. Warranty Information
The ACTBEST Core Electric Bike comes with a 12-month warranty from the date of purchase. This warranty covers manufacturing defects in materials and workmanship. It does not cover damage resulting from misuse, accidents, unauthorized modifications, or normal wear and tear.
Please retain your proof of purchase for warranty claims.
9. Customer Support
For any questions, concerns, or technical assistance regarding your ACTBEST Core Electric Bike, please contact our professional customer support team. We are committed to providing you with prompt and effective solutions.
Please refer to the contact information provided with your purchase or visit the official ACTBEST website for support details.



