U3 E-BIKE USER MANUAL

PACKAGE CONTENTS

The package includes the following items:

• LCD Display
• Brake Lever
• Handlebar
• Saddle
• Seat Post
• Taillight
• Motor
• Chain
• Pedals
• Stem
• Battery
• Hydraulic Suspension Front Fork
• Front Light
• Front Mudguard
• Crankset
• Tyre
• Disc Brake

Accessories:

• 1x Charger
• 2x Pedals
• 1x User Manual
• 1x Open-Ended Wrench
• 1x Hex Wrench

ASSEMBLY INSTRUCTIONS

Before Assembly

• Please read this manual thoroughly and follow its instructions.
• Make sure all parts are intact.
• Do not install the battery or power on the e-bike until it is fully assembled.
• If you have any questions or cannot find the information you need, please contact support@ebikelab.eu.

Step 1: Main Frame

1. Unfold the frame.
2. Fully close the folding latch, then flip down the safety lever to lock the folding latch in place.

Step 2: Stem

1. Connect the handlebar to the handlepost.
2. Raise the handlepost to the riding position.
3. Close the handlepost folding latch, adjust the handlebar to your desired height, and then close the handlebar height adjustment clamp firmly.

Step 3: Pedals

1. Push the pedals inward to fold the pedals up or down.

Step 4: Seat

1. Open the seatpost QR clamp and adjust the seat height by pulling up or pressing down the seat.
2. Close the seatpost clamp and make sure the seatpost is held in place. Do not adjust the seat too high (keep the safety line lower than the seat clamp).
3. Loosen the seat clamp and adjust the seat to an appropriate angle.

CHARGING INSTRUCTIONS

To charge the e-bike:

• Open the rubber charging port cover.
• Plug the DC connector of the charger into the charging port. Place the charger on a flat and safe surface.
• Insert the AC plug of the charger into the power socket. The indicator light on the charger will turn red, indicating charging has started. It will turn green when the battery is fully charged.
• After charging, unplug the charger from the power socket first, and then remove the DC connector from the charging port on the bike.

Battery Safety

• Fully charge the battery before first use.
• Periodically visually inspect the battery connector and charging cable.
• Always keep the charging environment clean and dry.
• Do not charge the e-bike if there is liquid on the charging port.
• Avoid charging in extremely hot or cold conditions to maximize battery efficiency. Do not use the bike while it is charging.
• Charging time is approximately 2-3 hours. Prolonged charging may reduce battery life and performance.
• Only use the provided charger. Contact Customer Service for a replacement if the original charger is lost or damaged.

RIDING TIPS

• Fully charge the battery before riding.
• Press and hold the power button for 2 seconds to power on the electric bike.
• Top speed is 25 KM/H.
• To stop, release the accelerator and squeeze the brake levers to slow the front and rear wheels.

DISPLAY AND BUTTONS

Display Indicators:

• Communication fault: Indicates a communication error.
• Cruise control: Indicates cruise control is active.
• Front light: Indicates the front light is on.
• Battery level: Shows the remaining battery charge.
• Walk assist mode: Indicates walk assist mode is active.
• PAS/speed level: Shows the pedal assist system or speed level.
• CUR: Current speed.
• MAX: Maximum speed.
• AVG: Average speed.
• Controller fault: Indicates a controller error.
• Brake prompt: Indicates the brake is applied.
• Motor fault: Indicates a motor error.

Display Readouts:

• ODO: Odometer (total distance).
• TRIP: Trip meter (distance for the current ride).
• VOL: Voltage.
• CUR: Current.
• RM: Remaining range.
• T1, T2: Trip meters.

Buttons:

• + Button: Press to switch speed mode from 1 to 3. Long press to turn on the headlight after powering on the e-bike.
• M Button: Hold for 2 seconds to power on/off the e-bike.
• - Button: Press to switch speed mode from 3 to 1. Long press to activate the walk assist mode after powering on the e-bike.

Settings:

• P01: System of units (0000 for metric, 0001 for imperial).
• P02: Cruise control (0000 for off, 0001 for on).
• P03: Backlight brightness (0001 lowest, 0002 medium, 0003 highest).
• P04: Odometer resetting (Hold - to reset).

To enter settings: Hold the + and - buttons simultaneously when the speed is 0 after powering on the e-bike. Press M to switch setting items, and then press + or - to adjust parameters. Press M again to save the setting and move to the next item.

ERROR CODES

FOR YOUR SAFETY

For safe riding, please read the following information carefully. Before riding, ensure your brakes are working properly.

Before Your First Ride

• Check that the quick-release screws and seat are firm, and that the brakes are effective.
• Check seat, gears, and tyre pressure. Proper tyre inflation can reduce flat tires and improve performance, including distance traveled per inflation.
• Check the handlebar and screws at least weekly.
• Performing these checks before and after each ride helps maintain peak performance and identify potential problems early.

Bike Mechanic Check Every Six Months

• Bikes require regular maintenance. Take your bike to a local bike shop for tuning twice a year. Critical components should be inspected frequently, repaired, and adjusted by an experienced mechanic.

Notice

• Wear an approved helmet and other protective equipment to reduce the risk of injury.
• Helmets can reduce serious head injuries by 85%.
• Elbow pads can reduce elbow injuries by 82%.
• Knee pads can reduce knee injuries by 32%.

Warning

• To avoid accidental movement while waiting at a traffic light, set the speed mode to zero or apply brakes.
• When riding, ensure your feet are always on the pedals and your hands on the handlebars. It is dangerous to take your feet off the pedals while riding.
• Never ride the electric bike for dangerous actions. Failure to exercise good judgment or heed warnings increases the risk of serious injury and, in rare cases, death.
• Ensure the battery is fully charged, especially for long trips.
• For your own safety and the safety of others, obey the speed limit, ride at a comfortable speed, and be prepared to stop at any time.
• Keep a safe distance from other riders to avoid collisions.
• Be aware of your surroundings and avoid obstacles and unsafe surfaces.
• Ride in open and flat areas. Avoid slopes or places with many pedestrians.
• Do not ride at high speeds, on uneven terrains, in bad weather, or in other unsafe conditions.
• Never use the electric bike for anything that could cause personal injury or property damage.
• Do not attempt to carry passengers or heavy objects. This bike can only hold the weight of one person at a time. Do not exceed the weight limit.
• Ride e-bikes only where permitted. Obey local laws and be courteous to pedestrians.

Taillight Modes

The taillight has three modes: always-on, flashing, and off. Each press changes the mode in order (always-on → flashing → off → always-on).

BATTERY MAINTENANCE

A well-maintained battery performs well even after high mileage. Charge the battery after each ride to prevent it from draining.

• Batteries perform best at room temperature (70°F / 22°C). Performance degrades at temperatures below 32°F (0°C). At -4°F (-20°C), battery performance drops to half of that at 70°F (22°C). Performance resumes as temperature rises.
• Refer to local laws and regulations regarding battery recycling and disposal.
• A fully charged battery can hold power for 90 days in standby mode. Charge the battery after each use. Draining the battery may cause permanent damage. Damages due to over-discharge are not covered by the warranty.

Notice

• Do not perform maintenance while the e-bike is powered on or charged.
• Store or charge the battery within the temperature range of 20°C-25°C / 68°F-77°F. Do not pierce the battery.
• Do not attempt to disassemble the battery to avoid fire.
• Do not ride the e-bike if the ambient temperature exceeds the maximum operating temperature (refer to the instruction manual).
• Temperature limits maximum power/torque, which could lead to personal injury or property damage. Before cleaning, ensure the power is off and the charging cable is unplugged to avoid damaging electronic components. Proper cleaning ensures a longer lifespan and smoother ride.
• Wipe the outer body of the e-bike with a soft, dry microfiber cloth.
• Check around the wheels for foreign objects.
• The e-bike has IPX4 water resistance, meaning it can withstand splashes, but do not submerge it in water.

Note

• Do not use alcohol, gasoline, acetone, or other corrosive/volatile solvents to clean the bike, as they can damage the exterior and internal structure.
• Do not allow water and liquids to enter the electric parts or battery of the e-bike.

STORAGE

The bike should be fully charged before storage to prevent over-discharge during long-term storage. If storing for more than a month, discharge and recharge the battery at least once a month.

Notice

• Do not store the electric bike outdoors for extended periods. Exposure to sunlight and extreme temperatures accelerates aging and reduces battery life.
• Store in a cool, dry place.
• Do not store in dusty environments; cover the bike to prevent dust entry.

SCRAP DISPOSAL

• This product cannot be disposed of by incineration, landfilling, or mixing with household waste. Improper handling of the battery may cause it to heat, rupture, or ignite, resulting in serious injury. Battery substances pose a chemical risk to the environment. Dispose of the entire device at an e-waste recycling center.
• Local regulations for battery recycling vary. Check your local laws and regulations for proper disposal.
• It is the user's responsibility to properly dispose of waste equipment according to local regulations. Contact your local waste management office for more information.

SPECIFICATION

WARRANTY

Dear Customer

Thank you for purchasing our foldable lithium battery bicycle! Please provide correct, complete, and true personal information and fill in the warranty card to ensure high-quality service. For products meeting warranty conditions, free maintenance is provided.

Warranty Terms:

1. Warranty service requires the warranty card. The serial number on the bike body must match the serial number on the warranty card. If proof of repair date is unavailable, the factory date or order date will be used as the start date.
2. If a performance failure occurs due to non-human damage within the warranty period, it will be repaired free of charge. Man-made damage will be subject to paid maintenance.

Warranty Disclaimer

The following situations are not covered by the warranty service and require payment:

• Total riding distance exceeds 100 kilometers.
• Damage caused by not following instructions.
• Lost or changed electric bike number.
• Product damage from accidental factors or improper use (e.g., mechanical damage, breakage, impact, oxidation).
• Overload, obstacles, falls, or damage from extreme conditions.
• Damage from abnormal storage conditions or electrical resistance (fire, immersion, high temperature, earthquake).
• Loss of wearing parts (packaging materials, technical materials).
• Other failures or damages not caused by product design, technology, manufacturing, or quality.

Disposal of Electrical and Electronic Equipment: The crossed-out garbage can symbol indicates separate disposal is legally required. Do not dispose of via residual or yellow bins. Batteries must be removed and disposed of separately. Owners can hand over old devices to public waste disposal authorities for proper disposal.

CE WARNING: This appliance is not intended for use by persons (including children) with reduced physical, sensory, or mental capabilities, or lack of experience and knowledge, unless supervised or instructed by a responsible person. Children should be supervised to ensure they do not play with the appliance.

Declaration of Conformity: For the full text of the EU Declaration of Conformity, contact support@ebikelab.eu.