PEXMOR Foldable 26 Inch Electric bicycle User Manual

August 16, 2024
PEXMOR

PEXMOR Foldable 26 Inch Electric bicycle

Specifications

  • Wheel: 26inch
  • Motor: 750W
  • Battery: 48V 13AH
  • Max Speed: 32mph / 51km/h
  • Max Torque: 82N.M
  • Charging Time: 6.5-7 hours
  • Pure Electric Mileage: 75-80km
  • Assistant-Mileage: 100-110km
  • Weight: 36.2kg
  • Max Load: 150kg
  • Uphill Capability: 15 degrees
  • Waterproof Rating: IP65

Parts List

Item Name Qty.
A Main Frame with Motorized Rear Wheel, Brake Disc, Chain, &
Derailleur 1

Assembly Instructions

  1. Rotate the front fork 180 degrees: Turn around the front fork 180 degrees at left or right side. Make sure the stem is perpendicular to the front fork shoulder.
  2. Take the steel rod out: Use a 13mm wrench to loosen two screws at both ends of the steel rod at the bottom of the front fork. Then take the steel rod out.

Maintenance

Regularly inspect and tighten all bolts and screws. Keep the chain lubricated and check tire pressure regularly. For detailed maintenance instructions, refer to the user manual.

LCD Instrument Use Instructions

The LCD panel provides various functions and settings for your electric bicycle. Refer to pages 15-23 of the user manual for detailed instructions on its use.

FAQs

Safety FAQ and Solutions
For safety-related questions and suggested solutions, please refer to pages 25-29 of the user manual.

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.
· 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 magnet arrangements. In any other case, any adjustment of these parameters should be undone immediately and the original settings restored before any further use of this bicycle.
· Disconnect the battery from this bicycle before any cleaning, servicing, and storage.
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Specifications

Wheel Motor Battery

26inch 750W 48V 13AH

Max speed

32mph /51km/h

Max torque

82N.M

Charging time

6.5-7H

Pure Electric Mileage

75-80km

Assistant-Mileage

100-110km

Weight

36.2kg

Max load

150kg

Uphill

15degree

Waterproof

IP65

Parts List

Item

Name

Qty.

A

Main Frame with Motorized Rear Wheel, Brake Disc, Chain, & Derailleur

1

B

Handlebars with LCD Display Panel

Assembly
1. Rotate the front fork 180 degrees Turn around the front fork 180 degrees at left or right side. Make sure the stem is perpendicular
to the front fork shoulder.
2. Take the steel rod out. Use 13mm wrench to loose two screws at both ends of steel rod at the bottom of front fork.Then take
the steel rod out.
5

3. Installing the front wheel. (1) Firstly loosen each nut on the axle of the front wheel.
(2) Secondly attach the front wheel to the front fork. Center the front wheel on the front fork leg, put the washer and screws on both ends of the hub in sequence. Then tighten the screws by 15mm Wrench in a clockwise direction.
6

4. Installing the front brake. Loose the two screws on the left side of the fork with 4mm hex wrench and make sure the
disc is in the middle of the brake, then use the two screws to tighten the disc brake in place.
7

5. Installing the handlebar Use 5mm hex wrench to unscrew the top bolt and remove the cap from the stem of the handlebar.
8

6. Calibrate the disc brake position. After installing the disc brake, it is necessary to check whether the disc plate is in the
middle position of the disc brake. If the disc is not centered, loosen the screws that have been fixed and adjust the position of the disc brake until the disc is completely in the middle of the disc brake before tightening the screw again.
9

7. Installing the headlight. Remove the washer and screw behind the fork crown by 10mm wrench, put the headlight
bracket inside, then use 4mm hex wrench and 10mm wrench tighten the washer and screw.
8. Installing the Pedals (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.
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Note: The two pedals (D) ARE different and should NOT be mixed up. The right pedal is marked with an R and the left with an L.
9. Installing the rear reflector Use Phillips screwdriver tighten the screws on the reflector. Make sure it is tightly installed
on the seat tube.
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10. Installing the Seat 11. Installing the front reflector 12. Installing the mobile phone support
Use 3mm hex wrench to install the screws on the phone support.
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13. 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 25 psi ( 1.68bars). 4. Disconnect your pump from the wheel, replacing the valve cap immediately. 5 . Inflate the other tire following the same steps.
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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.
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LCD Instrument Use Instructions
Please read the operation manual in detail before using LCD-Instrument. This manual will guide you to use the instrument correctly to achieve a variety of vehicle control and vehicle status display functions.
Display YL81C provides a variety of functions to meet the riding needs of users, including: Battery level indicator Assist level adjustment and indication (0-3/1-3/0-5/1-5) 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
There are three buttons on the operating unit of display YL81C, i.e., the on/off button , plus button and minus button .
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.
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.
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LCD Instrument Use Instructions
Long Press and hold , the electric bicycle enters the walk boost mode. Your e-bike will run at 6km/h. Release to stop the power output immediately and restore to the state before walk boost.
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.
When a fault occurs in the electronic control system ofyour 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 page 17.
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LCD Instrument Use Instructions

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:

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.

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LCD Instrument Use Instructions
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.
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.
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.
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.
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LCD Instrument Use Instructions
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.
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.
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.
09P is the start-up setting. The display can choose the following start modes: 00 zero start, 01non-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.
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LCD Instrument Use Instructions
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.
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.
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.
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.
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LCD Instrument Use Instructions
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.
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.
16P is the ODO resets setting. The display can choose the following: 00 non reset, 01reset. 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.
17P is the 6km/h walk boost setting. The display can choose the following: 00 turn off walk boost function, 01 turn on walk boost function. 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.
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LCD Instrument Use Instructions
Press to enter the parameter changing state. Press the / to select the parameter. PSd-y means the power-on password is activated while PSd-n is off. Press to confirm the mode and enter the state of setting the four digits power-on password or exit to the personalized parameter setting interface.
In the password setting mode, the adjustable digit will flash. Press the / to select the parameter and press to save the numbers and go to the next digit setting. Long press to save the parameter setting and return to the personalized parameter setting interface after finish setting the four digits in turn.
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.
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 simultaneously for 2s to reset the trip odometer. The main interface will flash during the reset process.
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LCD Instrument Use Instructions
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.
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Bicycle Parts Warranty List

Bicycle parts warranty list

Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33
Note

Type

Part name

Unit Quantity

Shelf life

Non quick parts

Frame

Set

1

One Year

Non- wearable parts

Fork

Package

1

One Year

Non- wearable parts

Chain Cover

Package

1

One Year

Non- wearable parts

Seat Post

Package

1

One Year

Non- wearable parts

Handlebar

Piece

1

One Year

Non- wearable parts

Stem

Piece

1

One Year

Quick- wear parts

Grip

Pair

1

Half a year

Non- wearable parts

Rim

Pair

1

One Year

Non- wearable parts

Spoke

Stick

1

One Year

Non- wearable parts

Front Hub

Piece

1

One Year

Non- wearable parts

Rear Hub

Piece

1

One Year

Non- wearable parts

BB Parts

Stick

1

One Year

Non- wearable parts Chain Wheel

Set

1

One Year

Non- wearable parts

Free Wheel

Package

1

One Year

Quick- wear parts

Sticker

Set

1

Half a year

Quick- wear parts Front Brake Line Stick

1

Half a year

Quick- wear parts Rear Brake Line Stick

1

Half a year

Quick- wear parts

Fender

Pair

1

Half a year

Quick- wear parts

Bell

Piece

1

Half a year

Quick- wear parts

Tyre

Piece

2

Half a year

Quick- wear parts

Inner Tyre

Piece

2

Half a year

Quick- wear parts

Pedal

Pair

1

Half a year

Quick- wear parts

Chain

Piece

1

Half a year

Quick- wear parts

Saddle

Piece

1

Half a year

Quick- wear parts

Brake Lever

Pair

1

Half a year

Quick- wear parts

Front Brake

Piece

1

Half a year

Quick- wear parts

Rear Brake

Piece

1

Half a year

Quick- wear parts

Seat Bolt

Set

1

Half a year

Quick- wear parts

Stander

Piece

1

Half a year

Quick- wear parts

Front Reflector

Piece

1

Half a year

Quick- wear parts

Rear Reflector

Piece

1

Half a year

Quick- wear parts Wheel Reflectors

Set

1

Half a year

Electric parts

Set

1

One Year

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.

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FAQ and Suggest Solution

FAQ and Suggest Solution

Question
Battery cannot be charged normally Battery indicator light is abnormal

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 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 48 V 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.

25

FAQ and Suggest Solution

Question
Fast battery drain
Motor does not work/ abnormal sound PAS mode can’t last Gear Level cannot be adjusted

Suggest Solution
When 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. Provide 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
First, you need to confirm whether the wiring is normal. If confirm that there is no problem with the wiring. Try to
check whether there is a problem with the controller or the handle If any abnormality is found, provide a video to the seller to explain the problem, and contact the seller to reissue the corresponding accessories
Open the controller box and check whether the connection between the sensor and the controller is loose or not in good contact
Electric mountain bike has 3 riding modes 1. Throttle-only mode (motor) : Switch the display to Level 0, twist the handlebar, and the motor will give power. PS: In throttle mode, the shift lever cannot be adjusted 2. Pedal- assist mode (pedal+motor) : As you pedal, switch between different levels using LCD display ( Level 1~5) . The higher the level is, the faster the bike will go and more battery power it will cost. 3. Pedal-only mode (turn off display) : As you pedal, shift gears using bike shifter (Level 1~7).”

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FAQ and Suggest Solution

Question

Suggest Solution

Instrument display the error code

When the instrument is abnormal and 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

Vehicle status code meaning

27

FAQ and Suggest Solution

Question

Suggest Solution 2 different situations when the instrument does not work
( 1) The battery is exhausted and the instrument cannot be turned on – Try charging the battery and turning the instrument back on

Instrument does not work

( 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

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. PS26-27.5-28 three sizes, each size is not the same speed.

Notice: 1 . The Right Left pedal needs to be rotated clockwise rotated counterclockwise and installed on the RightLeft crank 2 . When installing for the first time, be sure to tighten the pedals according to the installation video to avoid pedal falling or damage.
3 . During riding, please check the pedals regularly. If there are signs of loosening, please tighten them in time to avoid damage to the parts.
Installation and Care of Pedals Notice

References

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