ENGWE EP-2 3.0 Boost
User Manual and Installation Guide
Introduction
Dear Customer, this manual provides general usage and maintenance information for your electric bike. For a better riding experience, please carefully read and familiarize yourself with the specifications, functions, safety instructions, and maintenance details of this product. If you have any questions, please contact our official customer service team or an authorized service center. We will offer a solution as quickly as possible.
Please read the user manual carefully before riding. Familiarize yourself with the relevant operating instructions. Keep this user manual and the enclosed conformity certificate for future use. Do not use the electric bike before you understand its performance.
Safety Information
⚠️ Please understand and follow the safety instructions in this manual to effectively reduce risks. When entering public areas, please observe national and local laws and regulations. Remain alert while riding and maintain a safe distance from other people and vehicles.
The electric bike should be operated according to the instructions in this manual. The user is responsible for any damages caused by non-compliance with the instructions.
This product is not a professional mountain bike. Please do not use it as such.
For your first ride, please do so in a non-public area without traffic. Ride on public roads after you have become accustomed to this product.
Before each ride, check for loose fasteners or damaged parts. If the bike makes an unusual noise, stop riding immediately and contact the official customer service team.
Do not ride at excessive speeds. Under no circumstances should you ride on roads intended for motor vehicles.
For safety reasons, users under 16 years of age are strictly prohibited from using this electric bike. The following individuals are prohibited from using this product under the following conditions:
- Persons under the influence of alcohol or drugs.
- Persons unable to engage in physical activity due to illness.
- Persons unable to maintain balance or with clumsy motor skills.
- Persons whose weight exceeds the maximum load limit (refer to section 2.1.1 for load limit instructions).
- Pregnant women.
⚠️ Be cautious when using this product in adverse weather conditions such as snow, rain, slippery, or icy roads.
Do not charge this product if the charger or power adapter is wet. When charging in public places, observe local laws and regulations.
To protect and use the bike effectively, use parts specified by the manufacturer.
If you need to modify the electric bike, please contact the official customer service team. Proceed with caution and in compliance with local laws and regulations. The manufacturer is not liable for injuries or damages caused by unauthorized modifications.
⚠️ To reduce the risk of injury, always read and follow all "CAUTION", "DANGER", and "WARNING" notices in this manual.
DANGER: Failure to heed these warnings can result in physical injury. To minimize the risk of injury to yourself and others, always pay attention to DANGER notices!
WARNING: Failure to heed these warnings can lead to damage to the bike. To minimize damage, always pay attention to WARNING notices!
CAUTION: Failure to heed these warnings can lead to minor damage or make the bike unrideable. To minimize damage, always pay attention to CAUTION notices!
Product Overview
The electric bike features the following components:
- Handlebar
- Stem
- Folding Tube
- Quick Release for Stem
- Folding Tube Quick Release
- Front Light
- Quick Release for Folding Frame
- Front Fender
- Front Wheel
- Battery Pack
- Front Fork
- Front Brake
- Saddle
- Seatpost
- Quick Release for Seatpost
- Rear Light
- Rear Fender
- Luggage Rack
- Rear Brake
- Motor
- Reflector
- Tire
- Derailleur
- Chain
- Chainring
- Crank Arm
- Pedal
Installation Guide
1.1 Packlist
The package typically includes:
- Electric Bike Frame
- Front Wheel
- Battery Pack
- Charger
- Tools: Wrenches (sizes 8-10, 13-15, 16-18), Allen keys (M4, M5, M6)
- Air Pump
- User Manual
- Other accessories like reflectors, pedals, etc.
2.1.2 Installation Guide - Unpacking
Unpacking the electric bike usually requires two people. Carefully remove the bike from its packaging, ensuring all protective materials are removed.
2.1.1 Installation Guide - Handlebar Installation
Insert the handlebar stem into the steerer tube of the fork. Ensure the stem is correctly oriented and aligned. Secure the stem using the provided bolts (e.g., M5 screws) and quick-release levers. Adjust the handlebar angle for comfortable riding. Ensure all locking mechanisms are engaged and tight. ?️ indicates checking the tightness.
2.1.4 Installation Guide - Luggage Rack
Attach the luggage rack to the rear frame using the provided screws (e.g., M4, M5). Ensure it is securely fastened.
2.1.5 Installation Guide - Rear Light
Mount the rear light to the designated position on the rear fender or seat stay. Secure it properly.
2.1.6 Installation Guide - Fenders and Kickstand
Attach the front fender to the fork and the rear fender to the frame. Install the kickstand to the frame. Ensure all components are securely fastened.
2.1.7 Installation Guide - Wheel
Insert the front wheel axle into the fork dropouts. Secure the wheel using the quick-release lever or axle nuts. Ensure the wheel spins freely and is centered. ?️ indicates checking the tightness.
2.1.6 Installation Guide - Saddle Installation
Insert the seatpost into the seat tube of the frame. Adjust the saddle height to your preference, ensuring it does not exceed the maximum height line. Secure the seatpost using the quick-release lever. ?️ indicates checking the tightness and ? indicates locking the mechanism.
2.1.7 Installation Guide - Front Light
Mount the front light to the handlebar stem area. Ensure it is securely attached and positioned correctly for illumination.
2.1.8 Installation Guide - Pedals
Identify the Left (L) and Right (R) pedals. The Right pedal typically screws in clockwise, and the Left pedal screws in counter-clockwise. Screw the pedals into the crank arms and tighten them securely using a wrench (e.g., M6 wrench).
2.1.9 Installation Guide - Tire Pressure
The tires are shipped with reduced air pressure for protection. Before riding, please inflate the tires to the recommended pressure. ⚠️ indicates that the tires were deflated for transport and need to be filled before riding.
2.1.10 Installation Guide - Final Result
Congratulations! Your electric bike has been successfully installed.
Operation and Functions
Controls and Display
The handlebar features a display and control buttons:
- Display: Shows battery level, current speed, assist level, gear indicator, headlight status, Bluetooth status, and error codes.
- On/Off Button: Press and hold for 2 seconds to turn the bike on or off.
- +/- Buttons: Used to adjust the assist level (gear) and navigate menus.
- Boost Button (B): Press and hold to activate Boost mode for temporary extra power, useful for hills or challenging terrain.
- Brake Levers: Left lever controls the front brake, right lever controls the rear brake.
- Gear Shifter: Used to change assist levels.
- Bell: For signaling.
- Headlight Switch: Press and hold the '+' button for approximately 2 seconds to turn the lights on/off. This also adjusts instrument brightness.
Assist Modes
The bike offers multiple assist levels (gears). Use the '+' or '-' buttons to select the desired level. Level 1 is for flat terrain, and higher levels provide more assistance on inclines.
Note: When the bike is in PAS (Pedal Assist System) mode, it provides power based on pedaling, but can also be ridden like a normal bike without power.
Braking Instructions
The left brake lever controls the front wheel, and the right lever controls the rear wheel. For effective braking, apply the rear brake first, then the front brake. ⚠️ Do not brake solely with the front brake, as this can destabilize the bike and cause accidents.
Folding the Bike
The bike can be folded for easier storage and transport. Follow the specific steps shown in the diagrams to fold the handlebar stem and the main frame.
Battery Management
- Battery Removal: Unlock the battery using the key and slide it out from its compartment.
- Charging: Two charging methods are available: directly on the bike or after removing the battery. Connect the charger to the battery and a power outlet. The charging indicator light shows the status: Red = Charging, Green = Fully Charged, Blinking Green = Ready to charge, Blinking Red = Error. Charging time is approximately 3-4 hours.
- Battery Activation: For the first use, charge the battery fully. After the green light blinks, the red light will stay on. Wait about 10 seconds for activation to complete. It is recommended to charge for an additional 30 minutes for the first ride to ensure longer range.
User Settings
You can customize settings such as display units (km/h, mph), brightness, and activate/reset a password. Access these settings by pressing and holding the '+' and '-' buttons simultaneously. Follow the on-screen prompts to navigate and adjust options.
Maintenance and Troubleshooting
Maintenance and Self-Inspection
Regularly check tire pressure. Inspect key components like the handlebar, folding mechanism, saddle, seatpost, chain, wheels, and brakes for proper function and tightness. Lubricate the chain and derailleur every two months with motor oil, and the axle bearings and fork every six months with calcium-based grease.
Motor Maintenance: Keep the motor clean. Avoid water ingress (IPX5 rating). Do not use high-pressure water jets or immerse the motor in water. Do not open the motor housing.
Battery Maintenance: Charge the battery regularly. Avoid storing the battery for extended periods without charging. Do not expose batteries to open flames, heat sources, or direct sunlight at high temperatures. Do not attempt to disassemble the battery.
Troubleshooting
If the electric bike encounters issues, the display may show error codes. Refer to the table below for common problems and error codes:
| Problem | Possible Causes | Solutions |
|---|---|---|
| Bike not functioning | Weak battery, loose electronic connections, incorrect startup sequence | Charge battery, clean and reconnect components, start in correct sequence. |
| Cannot ride fast | Low tire pressure, uphill riding, frequent braking, overloading, wind | Check tire pressure, adjust riding style or route. Contact ENGWE customer service if issues persist. |
| Battery cannot be charged | Loose charger connection, damaged charger, battery stored for too long without charging | Reconnect charger, replace charger if damaged, contact customer service. |
| Motor not functioning after power on | Loose or damaged cable, loose or damaged throttle, damaged motor | Reconnect cable, tighten or replace throttle, contact customer service. |
| Unusual or low acceleration | Loose throttle or cable, weak battery | Tighten or replace throttle, fully charge battery. |
Error Codes:
| Error Code | Problem |
|---|---|
| E01/E02/E42 | Controller current error |
| E03 | Controller Hall error |
| E05 | Controller temperature error |
| E06 | Motor overheat protection |
| E09 | Voltage error |
| E30 | Communication error |
| E31 | Controller error |
| E36 | Torque sensor failure |
| E37 | Speed sensor error |
| E38 | Temperature sensor error |
| E43 | Motor damage |
⚠️ If an error code appears, stop operation immediately and contact ENGWE customer service.
Technical Specifications
| Model | EP-2 3.0 Boost |
|---|---|
| Frame Material | Aluminum Alloy |
| Max. Load | 150 kg / 330 lbs |
| Max. Speed | 25 km/h |
| Motor Torque | 75 Nm |
| Battery Capacity | 648Wh Li-ion |
| Max. Range | 120 km* |
| Tire Size | 20 x 4" (Front/Rear) |
| Tire Pressure | Not more than 20 PSI |
| Charger | 48V 4A |
| Charging Time | 3.5 Hours |
| Waterproof Rating | IPX5 |
| Weight | 32.3 kg / 71.2 lbs. |
| Max. Luggage Rack Capacity | 15 kg / 33 lbs. |
*The maximum range value is based on a fully charged battery, a load of 75 kg, a temperature of 25°C, and a humidity of 70% on a flat road in first gear. Actual results may vary depending on gear, temperature, load, wind speed, road conditions, and other factors.
Warranty and Customer Service
ENGWE provides a warranty for parts during the warranty period. The warranty period begins from the date of purchase. Unauthorized disassembly of the charger, battery, or motor will void the warranty.
Warranty Coverage:
- Frame: 12 Months
- Fork, Handlebar, Stem, Seatpost: 12 Months
- Tires: 1 Month (for defects not caused by punctures or collisions)
- Basic Parts (Saddle, Brakes, Brake Discs, Brake Levers, Pedals, Crank Arms, Pedals, Kickstand, Fenders, Quick Releases, Wheels, Shifter, Derailleur, Chain, Chainring, Shock Absorbers): 3-6 Months (depending on the part, excluding damage from self-modification or collision)
- Electrical Parts (Controller, Charger, Cables, Display, Throttle, Torque Sensor, Battery Cover, Disconnect Switch): 12 Months (covering manufacturing defects, excluding damage from short circuits, water ingress, or broken wires)
- Motor: 12 Months (covering issues like phase loss, demagnetization, bearing noise, excluding broken wires or water ingress)
- Battery: 12 Months (for capacity below 70% of original capacity, excluding human-induced damage)
⚠️ The limited warranty does not apply to subsequent owners or other transferees of the bicycle.
For repairs, relevant documents such as the warranty card and invoice must be presented. Battery issues may require the battery to be sent to the manufacturer for assessment.
