Electric Bicycle User Manual

Disclaimer

Read this disclaimer completely and carefully before proceeding with the rest of the manual content.

1. As-Is: This Viribus product is sold 'as is' and without any express or implied warranties, including but not limited to the implied warranties of merchantability and fitness for a particular purpose.
2. Product Modifications: Any modifications or alterations to Viribus products void any warranties and may result in damage or injury. Viribus shall not be liable for any damages resulting from such modifications or alterations.
3. Compliance with Laws: Customers shall be liable for ensuring that the use of Viribus products complies with all applicable laws and regulations in their respective jurisdictions. Viribus assumes no responsibility for any violations of laws or regulations resulting from the use of Viribus products.
4. Correct Use: Always use Viribus products only as directed in the accompanying manuals. Failure to follow instructions may result in injury or damage. Always ensure the assembly, installation, operation, maintenance, or repair of Viribus products is carried out by a competent person. Always make maintenance regularly throughout Viribus products' lifecycles; you have the liability to keep the products operating as intended. Always wear appropriate protective gear.
5. Third-Party Products: Viribus shall not be liable for any damages or losses resulting from the use of third-party products in conjunction with Viribus products. Customers shall refer to the third-party's guidelines or/and warranties (if any) for any third-party products used.
6. Limitation of Liability: Viribus shall not be liable for any direct, indirect, punitive, incidental, special, or consequential damages to property or life, whatsoever arising out of or connected with the use or misuse of Viribus products. In no event shall Viribus's liability exceed the value of the products sold. This disclaimer states the entire obligation of Viribus with respect to Viribus products. If any part of this disclaimer is determined to be void, invalid, unenforceable, or illegal, including but not limited to the warranty disclaimers, liability disclaimers, and liability limitations set forth above, the invalid or unenforceable provision will be deemed superseded by a valid and enforceable provision that most closely matches the intent of the original provision and the remainder of the agreement shall remain in full force and effect.

Safety Information

Warning:

• Install and adjust this bicycle ONLY in accordance with these instructions. Read them completely prior to installation and use. Contact customer service if any point is unclear. Provide this manual to anyone who will use this bicycle and provide it with this bicycle if it is ever given or sold to a third party. Failure to do so may lead to serious property damage and severe personal injury, possibly including death.
• ALWAYS obey all applicable local and national laws and regulations while riding. Do not ride this bicycle in any area or at any speed prohibited to electric bicycles. Always wear your helmet and other required protective gear. Always maintain your reflectors and other required safety equipment. Note that any illegal delimiting voids all warranties stated or implied.
• ALWAYS check whether the brakes function well BEFORE riding. Even when power is cut to the motor, the inertia of the bike will often require active braking power.
• ALWAYS ensure all fasteners and components are intact and securely tightened before and after every use.
• DO NOT ride this bicycle if any part is damaged or shows any sign of malfunction. Repair or replace worn and broken components before further use. Never replace any parts with non-identical ones.
• DO NOT allow children or persons unfamiliar with this bicycle or these instructions to operate it. Do not ride it while you are tired or under the influence of medication.
• DO NOT wear loose footwear or clothing that may become caught in the wheels or any other moving parts.
• Pay attention to your remaining power before setting out and during use. Recharge your battery as needed to ensure it never runs out of power at a moment where you are taken by surprise.
• It is recommended that you not ride your bike fast when getting started. This can be ensured by setting the bike's maximum speed limit low until you are fully familiar with your new electric bike and its controls.
• ALWAYS be alert for people, animals, or any obstacles that may appear in front of you while riding your bicycle. Be aware that pedestrians and drivers may not expect the speed or responsiveness of your bike. Adjust your behavior accordingly. It is advisable to install warning devices to draw their attention, but always be ready to turn safely out of their way if needed. Do not focus on the LCD display panel for extended periods of time while riding.
• NEVER ride at a speed where your stopping distance exceeds your visibility. We do not recommend that you ride your bicycle at night or in an environment with poor visibility. If you have an emergency that makes it necessary to do so, keep your light on and limit your speed appropriately.
• NEVER use the throttle or pedal assist system in any situation, road condition, or terrain where doing so might impair your control of your bicycle.
• NEVER adjust the 03, 06, 07, 13, 14, or 15 parameters in the display menus. Adjustment of these parameters should only be made when using your display panel with other motorized wheels of differing voltage, diameter, or magnetic arrangement. In any other case, any adjustment of these parameters should be undone IMMEDIATELY. Restore the original settings before any further use of the bicycle.
• DO NOT get the batteries, the charger, or its power cord wet or operate them with wet hands or in highly humid environments. If they accidentally become damp or wet, wait for them to completely dry before any further use. If the interior of any battery becomes wet, replace it.
• Disconnect the 48V battery from this bicycle before any cleaning, servicing, and storage.
• NEVER place any battery near heat sources or explosive or flammable gases. Never expose them to radiation or excessive pressure. Only charge the 48V battery in locations with an ambient temperature between 32°F and 110°F (0–45°C).
• NEVER modify any battery or power cord. Only use the provided charger with this bicycle.
• If any battery is ever damaged, avoid all contact with it or any leaking fluid. Remove contaminated clothing and flush with copious amounts of water if contact accidentally occurs with the skin. If contact accidentally occurs with the eyes, IMMEDIATELY flush them with copious amounts of water for at least 15 minutes while seeking medical attention.

Specifications

* Based on unloaded wheel rotation at full power without friction with software limitations. True speed will vary according to variables such as battery strength and load but should remain within ±1 mph of the displayed speed.

** Based on a 165 lb. or 75 kg load at full power and at full legal speed on actual roads.

Product Diagram

The electric bicycle features the following main components:

• Frame: Includes the top tube, down tube, and seat tube.
• Handlebars: For steering, equipped with brake levers, gear shifters, horn button, front light button, LCD display panel, and throttle lever.
• Saddle: Adjustable seat, attached via a saddle clamp to the seat post.
• Wheels: Front and rear wheels, each with a brake disc and caliper. The rear wheel is motorized.
• Battery: Mounted on the down tube, providing power. Features a power switch.
• Motor: Located in the rear wheel hub.
• Drivetrain: Includes front and rear cogs, chain, pedals, and derailleur.
• Accessories: Front and rear lights, spoke reflector.

Package List

Assembly

For video instructions, search the Viribus Bikes channel at youtube.com.

Installing the Handlebars

Steps:

1. Place the main frame vertically on firm level ground. Secure with a bike stand if available.
2. Rotate the handlebar stem to face forward.
3. Remove the 4 bolts from the handlebar clamp using the M4 hex wrench and remove the clamp.
4. Fit the handlebars onto the stem, replacing the clamp.
5. Replace and tighten the bolts to secure the handlebars.
6. Loosen the 2 bolts on the sides of the handlebar stem using the M5 hex wrench.
7. Rotate the handlebars until perpendicular to the frame and the stem is aligned with the top and down tubes.
8. Retighten these bolts to lock the stem in place.

Installing the Front Wheel

Steps:

1. Loosen the nuts on the front fork tips using the 13×15mm wrench and disconnect the protective bar.
2. Remove the nuts and washers from both sides of the front wheel axle.
3. Fit the front wheel into the front fork, ensuring the brake disc is on the left side and the axle is snugly held.
4. Replace the washers and nuts, tightening them with the 13×15mm wrench.

Installing the Front Brake Caliper

Steps:

1. Remove the two bolts from the front brake caliper using the M5 hex wrench.
2. Fit the caliper onto its holder on the left side of the front fork.
3. Replace and tighten the bolts to secure the caliper.
4. Test that the brake levers and brakes work smoothly and firmly.

Installing the Pedals

Steps:

1. Identify the left (L) and right (R) pedals; they are different.
2. Attach each pedal to the appropriate crank arm, screwing them in. Note: Screwing a pedal at the wrong side may damage its threads.
3. Tighten the pedals' locking nuts with the 13×15mm wrench.
4. Test that the pedals are securely fastened and rotate freely.

Installing the Rear Fender and Saddle

Steps:

1. Attach the rear fender to the saddle post and tighten its locking bolt with the Phillips screwdriver.
2. Loosen the seat tube clamp lever.
3. Insert the saddle post to the desired height.
4. Retighten the clamp lever.
5. Check saddle security; adjust the clamp's adjustment nut if needed.
6. To adjust saddle position forward/backward, loosen the nuts underneath the saddle with the 13×15mm wrench, slide, and retighten.

Installing the Front Fender and Light

Steps:

1. Remove the nut, bolt, and washer from the front fender support.
2. Fit the front light and front fender onto the support.
3. Replace the washer, bolt, and nut, tightening the bolt with the M5 hex wrench and the nut with the 8×10mm wrench simultaneously.

Inflating the Tires

Steps:

1. Remove the valve cap.
2. Connect the pump to the valve.
3. Inflate until firm, ideally to 50 psi (3.4 bars).
4. Disconnect the pump and replace the valve cap.
5. Repeat for the other tire.

Installing the Battery

Steps:

1. Remove the bolts from the down tube.
2. Slide the battery mount away from the battery and fit it onto the down tube.
3. Align slots on the mount with the down tube, secure with bolts using the M4 hex wrench.
4. Insert the key into the battery's keyhole.
5. Turn the key counterclockwise to unlock the battery.
6. Fit the battery onto its mount until it clicks.
7. Turn the key clockwise to lock the battery.
8. To activate/deactivate the display and motor, flip the battery's power switch to 'I' (on) or 'O' (off).

Operation

Battery

Caution: DO NOT allow the battery to drain completely, as this can reduce its lifespan and make reactivation difficult.

Battery Capacity Levels

Check the battery's current power level:

1. Flip the battery's power switch to 'I'.
2. Press the power display button to view indicator lights: 4 lights indicate a full battery, 1 light indicates a weak one.

Charging

When recharging is necessary:

1. Remove the cover from the charging port next to the power switch.
2. Connect the charger to its power cord and the charging port.
3. Connect the power cord to a stable power supply.
4. Turn on the battery and periodically check the charge level using the power display button. 3 or 4 lights indicate sufficient charge.
5. When finished, disconnect the power cord and then the charger from the battery. Ensure the battery is properly inserted if removed.

Warning: DO NOT leave the battery connected to power once fully charged. Overcharging can cause overheating, reduced performance, or fires/explosions.

Activating and Deactivating the Display Panel

1. With the battery on, hold the [Power Button] until the display panel activates. Perform this before using throttle or pedal assist.
2. To deactivate, hold the [Power Button] again until the screen shuts down.

Warning: Simply deactivating the battery can also turn off the display. This abrupt power cut is NOT recommended and risks damaging components.

Manual Control

Ride normally with the display panel off or on. The Shimano shifters control the 3 front rings and 7 rear cogs. Use the levers to upshift or downshift.

Warning: Ensure the bicycle's crank is turning while shifting.

Pressing the [Up Arrow] button with the display on activates Pedal Assist Control (PAS) at Level 1. Pressing the throttle lever activates throttle control to top speed.

Pedal Assist Control (PAS)

PAS requires continuous pedaling to activate the motor, providing assistance. Default settings offer three levels and a 20 mph (32 km/h) top speed. Lower levels operate at 60% or 80% of the top speed.

PAS Levels (3-Level Mode)

PAS can also be adjusted to five levels for finer control.

PAS Levels (5-Level Mode)

PAS activates at Level 1 upon two pedal rotations. Press [Up Arrow] to increase level, [Down Arrow] to decrease.

PAS pauses automatically if you stop pedaling, press a brake lever, or exceed the current speed limit on a slope. It reactivates when pedaling resumes and speed is within limits. Shifting from Level 1 to 0 neutralizes the motor until [Up Arrow] is pressed.

Pressing the throttle while PAS is active engages throttle control. Turning off the display or battery stops the motor; manual operation resumes.

Throttle Control

The throttle lever on the right handlebar allows single-speed scooter-like operation. By default, it provides the bike's top speed (20 mph / 32 km/h) when the battery and display are on. Press the throttle to maintain speed without pedaling.

Warning: The bike may exceed its set speed on slopes.

Throttle control pauses if a brake lever is pressed or if the speed exceeds the set limit. It resumes when brakes are released and speed is within limits. Pedaling while using throttle activates PAS. Turning off the display or battery stops the motor.

Adjustment

To adjust bike parameters:

1. Hold [Power Button] until the display panel activates.
2. Hold [Up Arrow] and [Down Arrow] simultaneously to enter adjustment menus.
3. Parameters start with 01 (Display Brightness).
4. Use [Up Arrow] and [Down Arrow] to change settings, and [Power Button] to save and move to the next parameter.
5. Wait for the display to reset automatically to exit menus.

Warning: DO NOT adjust parameters 03, 06, 07, 13, 14, or 15. These affect critical electrical and magnetic settings and can cause malfunction if changed incorrectly.

• 01 Display Brightness: Adjust using [Up Arrow] / [Down Arrow]. Setting 1 is dim, 2 is medium, 3 is bright.
• 02 Measurement Units: Toggle between US (miles/mph) and metric (km/km/h) using [Up Arrow] / [Down Arrow]. Setting 0 is metric, 1 is US.
• 03 Battery Voltage: Never adjust. Reset to 48 if changed.
• 04 Timed Shutoff: Default is indefinite standby (0). Press [Power Button] to activate 1-minute shutoff (1). Adjust minutes from 1 to 60, or set to 0 to disable.
• 05 Power Levels: Toggle between 3 power levels (60/80/100%) and 5 power levels (40/55/67/80/100%). Setting 0 is 3 levels, 1 is 5 levels.
• 06 Wheel Diameter: Never adjust. Reset to 26 if changed.
• 07 Speed Sensor(s): Never adjust. Reset to 1 if changed.
• 08 Top Speed: Default is 20 mph (32 km/h). Adjust using [Up Arrow] / [Down Arrow]. Speeds vary based on level and unit settings.
• 09 Throttle Start: Toggle between instant throttle response (0) and requiring two pedal rotations before throttle activation (1).
• 10 PAS or Throttle Disablement: Toggle options: Manual/PAS/Throttle (default), PAS only, Throttle only. Setting 0 disables throttle, 1 disables PAS, 2 enables both.
• 11 PAS Sensitivity: Adjust how quickly pedal input activates PAS. Lower values require less pedaling, higher values require more.
• 12 PAS Acceleration: Fine-tune acceleration smoothness. Lower values are gradual, higher values are quicker.
• 13 Magnetic Arrangement: Never adjust. Reset to 5 if changed.
• 14 Maximum Current: Never adjust. Reset to 15 if changed.
• 15 Minimum Voltage: Never adjust. Reset to 39 if changed.
• 16 Odometer Reset: Hold [Power Button] to reset total distance to 0.

Maintenance

• Disconnect power before cleaning or maintenance.
• Check parts for looseness, wear, or damage. Tighten, repair, or replace as needed.
• Clean the exterior with a soft damp cloth; avoid abrasive chemicals.
• Lubricate the chain and moving parts with bike lubricant.
• Store in a cool, dry place away from children if not in use for extended periods.

Troubleshooting

General Instructions

Error Codes

• Motor Failure [M icon]: Retighten wire connections or replace the part.
• Control Hardware Failure [Icon]: Generally indicates correct operation. If displayed when control is not disabled, check wiring/motor and replace parts if needed.
• Throttle Failure [Icon]: Displayed when throttle control is disabled (normal). If displayed when throttle is enabled, check wiring/motor and replace parts if needed.
• Brake Lever Failure [Icon]: Displayed when brake levers disconnect the motor (normal). If displayed when levers are not engaged, check wiring/levers/motor and replace parts if needed.

Disposal

Electrical products should not be disposed of with household waste. Follow local regulations for separate collection and disposal of electrical and electronic equipment. Contact local authorities or dealers for disposal and recycling advice.

Contact Us

For questions or comments, contact Viribus at support@viribusbikes.com.