PEXMOR G40000399 Electric Bicycle User Manual

PEXMOR G40000399 Electric Bicycle

Thank you for your purchase.
Please contact us if you have difficulty with assembly or need replacement parts.
Pexmor Customer Service is here to assist you.
Email : support@pexmor.com
Website : www.pexmor.com
Please attach your User name or Order ID so that we can assist you better

Safety Information

• 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.
• ALWAYS obey all applicable local and national laws and regulations while riding. Do not ride this bicycle in any area prohibited to electric bicycles. Always wear your helmet and other required protective gear. Always maintain your reflectors and other required safety equipment.
• Check whether the brakes function well using the brake levers before riding. Even after power is cut to the motorized wheel, 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 malfunctions. Repair or replace worn and broken parts before further use.
• Pay attention to the 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.
• DO NOT allow children or persons unfamiliar with these instructions to operate this bicycle without strict supervision.
• DO NOT wear loose footwear or clothing that may become caught in the wheels or any other moving parts.
• 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 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.
• DO NOT get the battery, its charger, or its power cord wet or operate them with wet hands.
• NEVER use the pedal assist system (PAS) or timed shutoff in any situation, road condition, or terrain where doing so might impair your control of your bicycle.
• NEVER adjust 03, 06, or 07 on the LCD display panel. Adjustment of these parameters should only be made when using the display with other compatible motorized wheels of differing voltage, diameter, or mag net arrangements. In any other case , any adjustment of these parameters should be undone im mediate ly and the original settings restored before any further use of this bicycle.
• Disconnect th e battery from this bicycle before any cleaning, servicing, and storage.

Specifications

Parts List

Product Diagram

Bicycle

Handlebars

Assembly

Installing the Handlebars

1. Unscrew the top bolt and remove the cap from the stem of the handlebars (B).
2. Loosen the two side bolts on the left and right of the stem.
3. Slide the stem into the head tube of the main frame (A), ensuring the brake and derailleur cables are in the front of the bicycle.
4. Replace th e ca p, tightening the to p bol t with the 5mm hex wrench (K).
5. Set the front fork facing forward, placing the brake caliper to the rear of the fork.
6. Retighten the two side bolts with the 4mm hex wrench (J) until the handlebars are locked in place.

Installing the Front Wheel

1. Loosen each nut on the axle of the front wheel (C), adjust each washer to leave a space.
2. Rotate the handlebars, placing the front wheel’s brake disc at the same side of the brake calip er to the rear of the front fork.
3. Please turn the front fork 180° clockwise before attaching the front wheel to the front fork, sliding the brake disc into the slot of the brake caliper and placing the axle onto the slots of the fork’s tips.
4. Rotate the captive washers and seat their tabs into the holes above the front wheel axle.
5. Tighten the nuts with the 15mm opening of the wrench (M).

Aligning the Handlebars

1. Secure the bicycle using a bike stand.
2. Loosen the two side bolts on the stem of the handlebars with the 4mm hex wrench.
3. While holding the front wheel firmly, rotate the handlebars to the desired position.
4. Retighten the bolts with your wrench.
5. Test that the handlebars are secure enough.

Installing Front Disc Brake

Installing the Front Light

1. Remove the nut and bolt from the top of the front fork.
2. Fit the connecting plate of the front light (F) onto the top of the fork, aligning their holes.
3. Replace the bolt and nut, tightening them with the 5mm hex wrench and the 10mm opening of the wrench (L) respectively.

Installing the Pedals

Note : The two pedals (D) ARE different and should NOT with an R and the left with an L.

1. Attach the pedals to the crank arms on the appropriate side, screwing them into place.
2. Tighten their locking nuts with your 15mm wrench.

Installing the Seat

1. Loosen the clamp underneath the seat (E) by rotating its lever.
2. Insert the seat post into the tube until your preferred height is reached.
3. Retighten the clamp using its lever.
4. Check that the sea t is secure. If needed, loosen the clamp, tighten its adjustment nut on the other side, and retighten the clamp.

Inflating the Tires

1. Remove the valve cap on a wheel.
2. Connect the valve to an appropriate pump.
3. Inflate the tire until it feels firm. For best results, stop inflation when the pressure reaches 50 psi (3.4 bars).
4. Disconnect your pump from the wheel, replacing the valve cap immediately.
5. Inflate the other tire following the same steps.

Installing the Battery

1. Insert the attached key beside the battery (G) into the keyhole on the battery.
2. Turn the key counterclockwise to unlock the battery.
3. Fit the battery onto its mount on the down tube, pressing until it clicks into place.
4. Turn the key completely clockwise to lock the battery in place.
5. To activate or deactivate the LCD display panel and the motor, flip the battery’s power switch to I or O.

Assembly Video

Maintenance

Charging the Battery
You can see the remaining power on the battery’s LED power display and the top left of the LCD display panel. When recharging is necessary:

1. Unlock the battery by inserting the key and turning counterclockwise.
2. Remove the battery from the bicycle.
3. Connect the charger (H) to a stable compatible power source.
4. Connect the battery to the charger using the provided power cord (I). The battery’s power indicator light should turn red and charging should begin.
5. When the light turns green, the battery has been fully charged. Disconnect the charger first from your power source and then remove the battery from the charger.

Miscellaneous

• Disconnect the power after each use and prior to any cleaning or other maintenance.
• Check the parts of the bicycle for any looseness, wear, or damage after use. Tighten, repair, or replace any problematic parts before further use.
• The exterior of the bicycle can be cleaned with a soft damp cloth. Do not use abrasive or caustic chemicals.
• Lubricate the chain and any moving part using a standard bike lubricant as needed.
• If the bicycle will not be used for an extended period of time, store in a cool dry place inaccessible to children.

Battery Maintenance Warm Tips
After receiving the bike should charge it first.
Correct Charging Method

1. After receiving the electric bike should charge the battery first.Start first riding after fully charging.
2. The plugs at both ends of the charger should be connected to the battery first, and then to the power supply.
3. If the green light is displayed after the charger is connected for the first time , it may be that the power supply is not connected properly. Try reconnecting, the red light shows that it is charging normally.
   • The battery should be charged in time on the day after the battery is exhausted during the ride on the day;
   • Make sure to fully charge the battery every 3 months even in the case of infrequent use.

Function overview and functional area layout

Function overview
Display YL81C provides a variety of functions to meet the riding needs of users, including:

• Battery level indicator
• Assist level adjustment and indication (levels ECO, MID and HIGH)
• Speed indicator
• Walk boost mode
• Distance indicator (including trip distance and ODO)
• Error code indicator
• Personalized parameter settings (e.g. wheel diameter, speed limit, etc.)
• Factory default parameter recovery function

Functional area layout

Button definitions

General operation

Power on/off
By pressing and holding the button , the display will start to work and the working power supply of the controller will be turned on. In the power-on state, by pressing and holding the button , your e-bike will be powered off. In the power-off state, the display will no longer use the battery power, and its leakage current will be less than 1uA.

If your e-bike is not used for more than 10 minutes, the display will be automatically powered off.

Display interface
After the display is turned on, the display will show the real-time speed (km/h) and the trip distance (km) by default. By pressing the button , the information displayed will be switched between the trip distance (km) and the ODO (km).
When the TRIP light is on, the trip distance is displayed; when the ODO light is on, the ODO is displayed.

Walk boost mode
Long Press and hold -, the electric bicycle enters the walk boost mode. Your e-bike will run at the constant speed at the promoted speed, Simultaneously displaying ECO, MID, and HIGH cycle jumps. Release – to stop the power output immediately and restore to the state before walk boost.

The walk boost mode can only be used when pushing the electric bicycle, please do not use it while riding.

Assist level selection
By pressing the button +/-, the e-bike assist level will be switched to change the motor output power. There are three assist levels available: ECO, MID and HIGH.

Battery level indicator
The battery level indicator consists of four segments. When the battery is fully charged, the four segments will be all on. In case of undervoltage, the last segment of the battery indicator will flash, which means the battery has to be charged immediately.

Error code indicator
When a fault occurs in the electronic control system of your e-bike, the display will automatically indicate the error code in the distance area in the format of E0**. Detailed definitions of error codes are shown in Schedule 1.

When an error code appears on the display interface, please conduct troubleshooting in time. Otherwise, your e-bike will not work normally.

Personalized parameter settings

Each setting needs to be done with the bicycle stationary.
The personalized parameter setting procedure is as follows:
When the display is ON and the speed shows 0,

1. Press and hold + – simultaneously for more than 2 seconds to enter the personalized parameter setting interface.
2. Press +/- to toggle between the personalized parameter setting interface, and press to enter the parameter changing state.
3. Press +/- to select the parameter, long press + for addition operation, long press – for subtraction operation.
4. Press to save the parameter settings and return to the personalized parameter setting interface.
5. Long Press to save the parameter settings and exit the personalized parameter setting interface.

The following options are available on the personalized parameter setting interface:
The voltage parameter cannot be changed, which is settled by default.

Backlight luminance setting
01P is the backlight luminance setting. Parameters 1, 2 and 3 are available, which represent the backlight luminance, 1 for the minimum luminance, 2 for the standard luminance and 3 for the maximum luminance.
Press the button to enter the parameter modification interface. Press the button +/- for parameter selection.
Press the button to save the parameter and return to the selection interface of general setting options.

Backlight Luminance Setting Interface

Metric and Imperial setting
02P is the metric and imperial setting, 00 for metric and 01 for imperial.
Press to enter the parameter changing state. Press the +/- to select the parameter and press to save the parameter setting and return to the personalized parameter setting interface.

Rated voltage setting
03P is the rated voltage setting. The available rated voltage range is: 24V, 36V, 48V,60V.
Press to enter the parameter changing state. Press the +/- to select the parameter and press to save the parameter setting and return to the personalized parameter setting interface.

Auto Sleep Time Setting
04P is the auto sleep time setting. To save the battery power and reach higher range, this display will be turned off after it has not been used for a time. The adjustable range is: 1~60min, 00 means no auto shutdown. The factory default setting is 10 minutes.
Press to enter the parameter changing state. Press the +/- to select the parameter and press to save the parameter setting and return to the personalized parameter setting interface.

PAS level setting
05P is the Pedal assist level setting. The available PAS level settings are: 0~3, 1~3.
Press to enter the parameter changing state. Press the +/- to select the parameter and press to save the parameter setting and return to the personalized parameter setting interface.

Wheel diameter setting
06P is the wheel diameter setting. The adjustable wheel diameter range is: 1~32inch.
Press to enter the parameter changing state. Press the +/- to select the parameter and press to save the parameter setting and return to the personalized parameter setting interface.

Number of speed sensor magnets setting
07P is the speed sensor magnet number setting. The adjustable speed sensor magnet number range is: 1 ~ 255 pcs.
Press to enter the parameter changing state. Press the +/- to select the parameter and press to save the parameter setting and return to the personalized parameter setting interface.
The number of speed sensor magnets cannot be changed, the default setting is 12.

Speed Limit Setting
08P is the speed limit setting. The adjustable speed limit range is: 1~ 100km/h. (The maximum adjustable speed limit varies by different protocols).
Press to enter the parameter changing state. Press the +/- to select the parameter and press to save the parameter setting and return to the personalized parameter setting interface.

Start-up setting
09P is the start-up setting. The display can choose the following start modes: 00 →zero start, 01→non-zero start.
Press to enter the parameter changing state. Press the +/- to select the parameter and press to save the parameter setting and return to the personalized parameter setting interface.

Drive mode setting
10P is the drive mode setting. The available drive modes are: 00 →Pedal assist only, 01 →Electric only, 02 →Both Pedal assist and electric.
Press to enter the parameter changing state. Press the +/- to select the parameter and press to save the parameter setting and return to the personalized parameter setting interface.

Pedal assist sensitivity setting
11P is the pedal assist sensitivity setting. When set to higher numbers, it will take more crank rotations to activate the motor. On lower numbers, it will take little crank rotation to activate the motor. The adjustable range is: 1~24.
Press to enter the parameter changing state. Press the +/- to select the parameter and press to save the parameter setting and return to the personalized parameter setting interface.

Pedal assist strength setting
12P is the Pedal assist strength setting. The Pedal assist strength is the relative strength of the PWM signal from the controller when start to activate pedal assist. The adjustable range is 0 ~ 5. 0 is the weakest strength and 5 is the strongest.
Press to enter the parameter changing state. Press the +/- to select the parameter and press to save the parameter setting and return to the personalized parameter setting interface.

Number of pedal assist sensor magnets setting
13P is the number of pedal assist sensor magnets setting. The adjustable range: 5- 12 pcs.
Press to enter the parameter changing state. Press the +/- to select the parameter and press to save the parameter setting and return to the personalized parameter setting interface.

Controller Current Limit Setting
14P is the controller current limit setting. The adjustable range is: 1~50A.
Press to enter the parameter changing state. Press the +/- to select the parameter and press to save the parameter setting and return to the personalized parameter setting interface.

Battery under voltage value setting
15P is the battery under voltage setting. The value can be adjusted based on the current rated voltage.
Press to enter the parameter changing state. Press the +/- to select the parameter and press to save the parameter setting and return to the personalized parameter setting interface.

ODO resets setting
16P is the ODO resets setting. The display can choose the following: 00 →non reset, 01→reset.
Press to enter the parameter changing state. Press the +/- to select the parameter and press to save the parameter setting and return to the personalized parameter setting interface.

Shortcut operation

Restore factory default parameter settings operation
dE is the restore factory default parameter settings. dE-Y is to restore default settings, and dE-N is not to restore.
Enter into the main setting interface and keep the speed at 0, press and hold and simultaneously for 2s to enter the restore factory default setting interface. Pressing +/- to toggle to dE-Y. Then after pressing to confirm the display will show dE-0 for a few seconds and then automatically start to restore the factory default settings. The display will automatically exit to setting interface after the restoration.

Trip odometer reset operation
The display can record trip odometer and odometer. Trip odometer is not automatically reset after turning off. The trip odometer needs to be reset manually.
Enter into the main setting interface and keep the speed at 0, press and hold

• and START simultaneously for 2s to reset the trip odometer. The main interface will flash during the reset process.

Considerations

Please use safely, and do not plug or unplug the display when it is powered on.

• Please avoid bumping as far as possible.
• Please do not alter the background parameter settings of the display at will, otherwise normal riding cannot be guaranteed.
• If the display fails to work normally, it should be repaired as soon as possible.
• Due to product upgrades of the Company, part of the displayed contents or functions of the product you bought may be different from the manual, depending on the actual model.

Error Code Definition

Bicycle Parts Warranty List

Bicycle parts warranty list

Number| Type| Part name| Unit| Quantity| Shelf life
1| Non quick parts| Frame| Set| 1| One Year
2| Non-wearable parts| Fork| Package| 1| One Year
3| Non-wearable parts| Chain Cover| Package| 1| One Year
4| Non-wearable parts| Seat Post| Package| 1| One Year
5| Non-wearable parts| Handlebar| Piece| 1| One Year
6| Non-wearable parts| Stem| Piece| 1| One Year
7| Quick-wear parts| Grip| Pair| 1| Half a year
8| Non-wearable parts| Rim| Pair| 1| One Year
9| Non-wearable parts| Spoke| Stick| 1| One Year
10| Non-wearable parts| Front Hub| Piece| 1| One Year
11| Non-wearable parts| Rear Hub| Piece| 1| One Year
12| Non-wearable parts| BB Parts| Stick| 1| One Year
13| Non-wearable parts| Chain Wheel| Set| 1| One Year
14| Non-wearable parts| Free Wheel| Package| 1| One Year
15| Quick-wear parts| Sticker| Set| 1| Half a year
16| Quick-wear parts| Front Brake Line| Stick| 1| Half a year
17| Quick-wear parts| Rear Brake Line| Stick| 1| Half a year
18| Quick-wear parts| Fender| Pair| 1| Half a year
19| Quick-wear parts| Bell| Piece| 1| Half a year
20| Quick-wear parts| Tyre| Piece| 2| Half a year
21| Quick-wear parts| Inner Tyre| Piece| 2| Half a year
22| Quick-wear parts| Pedal| Pair| 1| Half a year
23| Quick-wear parts| Chain| Piece| 1| Half a year
24| Quick-wear parts| Saddle| Piece| 1| Half a year
25| Quick-wear parts| Brake Lever| Pair| 1| Half a year
26| Quick-wear parts| Front Brake| Piece| 1| Half a year
27| Quick-wear parts| Rear Brake| Piece| 1| Half a year
28| Quick-wear parts| Seat Bolt| Set| 1| Half a year
29| Quick-wear parts| Stander| Piece| 1| Half a year
30| Quick-wear parts| Front Reflector| Piece| 1| Half a year
31| Quick-wear parts| Rear Reflector| Piece| 1| Half a year
32| Quick-wear parts| Wheel Reflectors| Set| 1| Half a year
33| Electric parts|  | Set| 1| One Year

Note

| The warranty is natural wear, except for man-made damage and irresistible causes. You need to provide broken sample parts, send us photos and videos with Bike Numbers.

FAQ and Suggest Solution

FAQ and Suggest Solution

Question| Suggest Solution
 | (1) First confirm that the charging method is correct.
 | The correct method to charge the battery：
 | 1.The plugs at both ends of the charger should be connected to
 | the battery first, and then to the power supply.
 | 2. If the green light is displayed after the charger is connected
 | for the first time , it may be that the power supply is not
 | connected properly. Try reconnecting, the red light shows that it
 | is charging normally.
 | 3.It is normal for the battery indicator to show 3 green and 1 red
 | when it is fully charged.
 | (2) If confirm that the charging method is correct and battery
 | still won’t charge
 | Provide video to sellers to judge specific problems:
 | What the video needs to show:
 | please bring the battery to a brighter space, then plug the
 | charger into the socket.Take a video of the charging process
 | including the battery and the charger.
 | Seller need to observe the charger indicator and battery
① Battery cannot be charged normally

② Battery indicator light is abnormal

| indicator status.So that judge the specific problem based on how

the charger and battery react when charging

Charger and battery indicator status meaning

(1) If the indicator light of the charger does not light up

-Try plugging in a separate charger (without connecting the

 | battery), observe the indicator light
 | – If it does not light up, the charger is damaged, and arrange for a
 | replacement charger;
 | (2) If the indicator light of the charger is on but the indicator
 | light of the battery is off
 | – You need to measure the voltage of the battery with a
 | multi-meter
 | The normal charging voltage range of 48V battery should be
 | between 54.6-39V.
 | – If it is lower than 39V, it may be that the battery cannot be
 | charged.
 | It needs to be replaced charged with a charger that starts from
 | 0V. – After fully charged the battery can be charged and used
 | normally
 | PS:It is normal for the battery indicator to show 3 green and 1
 | red when it is fully charged.
Question| Suggest Solution
---|---

Fast battery drain

| ****

①When the new bike is fully charged the voltage should be 54V

It is normal for the indicator lights to be 3 green and one red after the battery is fully charged.

When you are charging the battery, if the charger already shows a green light, don’t unplug the charger first.

You’ll need to let it charge for another hour after the charger already shows a green light to fully charge the battery.

②Provide video to sellers to judge specific problems: What the video needs to show:

1.   Fully charge the battery, then start riding and record the kilometers displayed on the instrument when you start riding.

2.   Then wait until the battery power is exhausted, shoot the video again and record the kilometers displayed on the instrument

PS : The battery voltage and cruising range are related to the number of years of use of the battery

Motor does not work/abnormal sound

| ① First, you need to confirm whether the wiring is normal.

② If confirm that there is no problem with the wiring.Try to check whether there is a problem with the controller or the handle

③ If any abnormality is found, provide a video to the seller to explain the problem, and contact the seller to reissue the corresponding accessories

Instrument does not work

| 2 different situations when the instrument does not work

(1) The battery is exhausted and the instrument cannot be turned on

(2) The battery is charged but the instrument cannot be turned on

–  The first choice is to rule out whether there is a problem with the wiring.

–  If it is confirmed that there is no problem with the wiring, the instrument may be damaged and needs to be replaced

-Try charging the battery and turning the instrument back on

Instrument shows that the max speed cannot reach the initial value

| ****

1.   Confirm whether the battery can be fully charged

2.   Check whether the wheel diameter setting has been changed. PS：26-27.5-28 three sizes, each size is not the same speed.

the error code is displayed.

Please refer to the picture for the meaning of the error code and then check whether the corresponding parts are faulty

on the instrument.

If E04 is displayed and the power assist is normal, replace the handlebar.

How to judge the power assist: with the instrument turned on, only use the pedals to ride without turning the throttle to see if the motor is working.

2.  If E04 is not displayed, Check whether there is power assist or not (Long press and hold the – button on instrument )

(1)  No power assist, replace the rear wheel

(2)  With power assist, replace controller

Pedal assist cannot be set properly| ****

1. Adjust the power assist to the max level 5 by pressing the + button on the instrument.

Then try riding again. Generally, the assist can be activated after

2-3 laps of riding. Video example：https://youtu.be/kpJavv9xABg

2. If it has been adjusted to the max assist level, it may be a problem with the sensor. Sensor needs to be replaced

PAS mode can’t last| Open the controller box and check whether the connection between the sensor and the controller is loose or not in good contact
Pedal assist cannot adjust speed| Re-adjust the instrument parameters according to the initial settings

P07 is adjusted to 6 (6 magnets)

Pedal – assisted riding speed in different level| level 1：12mph（19km/h）60% level 2：14mph（22km/h）70% level 3：16mph（25km/h）80% level 4：18mph（28km/h）90% level 5：20mph (32km/h) 100%

References

• status.So
• Outdoor Sports & Exercise Equipment Online Store – Pexmor

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