Magnum Cosmo X User manual

Cosmo X
PLEASE READ ME FIRST
www.magnumbikes.com

Contents
1.General Introduction
1.1 Welcome .................................................................................................................................................... 01
1.2 Use of Manual ............................................................................................................................................ 01
1.3 Service and Technical Support ................................................................................................................. 01
1.4 Bike Components ...................................................................................................................................... 01
1.4.1 Handlebar ............................................................................................................................................... 01
1.4.2 E-Bike ...................................................................................................................................................... 02
1.5 Technical Data ........................................................................................................................................... 03
2.Installation and Adjustment
2.1 Handlebar and Stem Assembly ................................................................................................................ 04
2.2 Assembly of the Pedals ............................................................................................................................ 05
2.3 Seat Position ............................................................................................................................................ 06
2.4 Saddle Height ............................................................................................................................................. 07
2.5 Saddle Adjustment .................................................................................................................................... 07
3.Battery and Charger
3.1 Overview .................................................................................................................................................... 08
3.2 General Remarks ....................................................................................................................................... 08
3.3 Installing and Removing the Battery ........................................................................................................ 08
3.4 Charging ..................................................................................................................................................... 08
4. Display ....................................................................................................................................................... 09
5.Recommendations and Maintenance
5.1 General Requirements ............................................................................................................................... 18
5.2 Maintenance Schedule .............................................................................................................................. 18
5.3 Denition of Tampering and Recommendations ..................................................................................... 20
6. Warranty .................................................................................................................................................... 21

1.General Introduction
1.1 Welcome
Thank you for purchasing a Magnum electric bike and welcome to the Magnum Bikes family of e-bike
enthusiasts. We encourage you to join our Facebook group “Magnum Bikes Community” which you can
nd at the following link: https://www.facebook.com/groups/389290978573773 Our Facebook group is a
place for Magnum riders to ask questions, have discussions, share recommendations and experiences and
connect with other Magnum Bike enthusiasts.
1.2 Use of Manual
We encourage you to read this manual thoroughly before you take your new E-bike for a ride. It is important
not to overlook the safety instructions and explanations of both traditional and non-traditional bike parts,
as this will offer you a general understanding of your new E-bike. This manual is designed to help you get
the most out of your E-bike, and so we have attempted to answer as many of your potential questions as
possible. Please take a moment to read through the various sections before you get in the saddle.
1.3 Service and Technical Support
This manual is intended as a general overview of your new E-bike, and is therefore not an extensive refer-
ence. For technical support, including information about service, maintenance and repairs, please consult
your dealer. You can visit our website (www.magnumbikes.com) for more information about our products
and technology, or to nd a dealer close to you.
1.4 Bike Components
1.4.1 Handlebar
5
2 3
41 6
7810 9
1. Left Brake Lever 6. Right Brake Lever
2. Left Grip 7. Right Grip
3. Display Controller 8. Thumb Throttle
4. Display 9. Horn
5. Adjustable Stem 10. Shifter
General
01

1. Rear Light 8. Saddle Handle 15. Pedal 22. Tire
2. Rear Fender 9. Saddle 16. Crankset 23. Wheel Reector
3. Motor 10. Seatpost 17. Controller 24. Front Fork
4. Free Wheel 11. Saddle Quick Release 18. Fender Holder 25. Front Disc Brake
5. Rear Derailleur 12. Battery 19. Adjustable Stem
6. Carrier 13. Kickstand 20. Front Light
7. Rear Disc Brake 14. Chain 21. Front Fender
1.General Introduction
1.4.2 E-Bikes
General
02
10
11
12
18
15
14
20
24
22
25
23
21
6
5
4
3
7
8
919
1
2
13
16
17

Component Cosmo X
Motor 48V, 500W Bafang Rear Geared Hub Motor
Battery 48V Lithium Ion
Display Magnum LCD Display
Throttle Thumb Throttle
Front Fork SR Suntour NEX Fork with Lockout & Preload Adjustment
Crankset 52T
Brakes Clarks Hydraulic
Derailleur Shimano, Tourney, 7-speed
Freewheel Shimano, Shimano
Tires Innova 26” x 2.35”
Front Light Integrated Front Headlights Controlled From Display
Rear Light Integrated Taillights Controlled From Display & Brake Activated
Max Loading¹ 225 lbs
Max Speed² Cadence sensing PAS up to 25mph, trigger throttle up to 20mph
¹Max load includes the bike
²Can be configured to class 1, 2, or 3 e-bike
1.General Introduction
1.5 Technical Data
General
03

Lift the handlebars/stem and align the stem with
the head tube. Slide the stem onto the head tube
and tighten the bolt at the top of the stem with a
5mm hex.
2.Installation and Adjustment
2.1 Handlebar and Stem Assembly
Installation & Adjustment
04
To adjust the angle of the stem use a 5mm allen
wrench to loosen the two side bolts, then loosen
the wedge bolt. Adjust the stem to your desired
angle and then tighten the wedge bolt followed by
the side bolts.

2.Installation and Adjustment
2.2 Assembly of the Pedals
Identify your pedals: check the letters on the pedals, “L” or “R”.
The “R” marked pedal is for the right (when facing the forward direction). For attachment to the crank,
tighten clockwise.
The “L” marked pedal is for the left. For attachment, tighten counterclockwise when facing directly.
WARNING
First screw on the pedals by hand, then tighten with the wrench provided.
RL
L
R
Installation & Adjustment
05

2.Installation and Adjustment
2.3 Seat Position
To enable comfortable, fatigue-free and safe riding, the saddle and handlebar height should be adjusted to the
body size of the rider.
The saddle height is correct if the leg is near full extension while the foot is resting at on the pedal in the
bottom position of the crank cycle. The toes must still be able to touch the ground comfortably.
Optimal
Installation & Adjustment
06

2.Installation and Adjustment
2.4 Saddle Height
The quick-release lever must require noticeable effort to put into fully closed position to prevent any unde-
sired movement while riding.
WARNING
An improperly closed quick release lever can open again or have limited ability to keep the saddle in place.
This may cause the saddle to suddenly drop into the seat tube, potentially leading to serious falls and injury.
MININSERT
There is a minimum insertion line marked on the seat post
(failure to observe the minimum insertion line can result
in serious injury); please ensure the seat post is always
inserted into the seat tube beyond this line (the line must be
inside the seat tube).
Loosen the quick release lever at the top of the seat tube,
determine the appropriate saddle height and tighten the
clamp.
The clamping force can be adjusted by adjusting the bolt on
the quick release lever.
The quick release lever must be closed with considerable
counter pressure.
2.Installation and Adjustment
2.5 Saddle Adjustment
The saddle can also be tilted and adjusted in the forward/
back direction.
Loosen the bolt at the bottom (4).
Adjust the saddle tilt by pressing down on the front or rear
of the saddle
Move the saddle forward or backward to adjust for arm/
torso length and desired riding position.
Tighten the bolt (4) to secure the saddle.
�
Installation & Adjustment
07

3.Battery and Charger
3.1 Overview
A Battery
B Capacity Level Light
C Power Button
D Charging Socket
WARNING
Please ensure that the battery is locked in place before use
A AC Plug¹
B Charger
C Charging Indicator
D Battery Plug
¹Type will vary
C
B
D
A
3.2 General Remarks
Stop charging the battery immediately if you notice anything unusual, such as smoke or a strange smell;
take out the battery and store it outside of the house, then take the battery to an authorized dealer or experi-
enced technician for service or replacement.
In the unlikely case that the battery catches re, do NOT attempt to put it out with water. Use sand or anoth-
er re retardant instead and call emergency services immediately.
3.3 Installing and Removing the Battery
The battery (1) is secured with a lock (2)
Unlock the battery and pull it out
Insert the battery (1) into the frame until it stops
Remove the key from the lock (2). Ensure that the battery is well secured
2
1
2
1
3.4 Charging
Charging at temperatures below 32°F (0°C) or above 140°F (60°C) can cause the battery to charge insu-
ciently and can be harmful to the life of the battery
During charging, the charger’s LED light will be continuously red
Charging is completed when the charger’s LED turns green
A
C
B
D
Battery & Charger
08

Display
09
Powering ON/OFF
Press and hold the power button to turn on the display. A start-up screen (see image below) will display for
approximately 2 seconds before entering the main interface showing real-time information.
To turn the display off press and hold the power button until the screen goes blank. The display will turn off
automatically if no operations are performed within the set sleep time, while the speed is 0, and current is
less than 1A. The sleep time can be set by the user in the settings interface.
Start-up Screen Main Interface
4. Display
4.1 Appearance

Display
10
Adjust Up
Mode Function
Adjust Down
Power On
4. Display
4.2 Indicators & Buttons
Button Functions
Power On: Turns the display on/off
Adjust Up/Down: Changes the level of pedal assist during riding and switches functions in display settings
Mode Function: Switches interface functions and enters into the display settings
Walk Assist Indicator
Error Code
Battery Level Indicator
PAS Levels
Service Tool Connection
Bluetooth
Light Indicator
Power Output
Speed Mph
Trip Information &
Indicators

Display
11
4.Display
Pedal Assist Level
Short press the arrow buttons to adjust the pedal assist level up or down. There are 5 PAS levels: ECO, TOUR,
SPORT, TURBO, BOOST, and BOOST+. BOOST+ is indicated by a blinking BOOST icon. When PAS level is
empty it means pedal assist is off.
PAS levels do not switch in cycles. Meaning, after reaching the BOOST level pressing the up arrow will NOT
cycle the levels back to the beginning. The user must use the down arrow button to switch back down to PAS
off.
(Adjust up button)
(Adjust down button)
Adjust Up
Mode Function
Adjust Down
Power On

Display
12
Light Control
Long press the adjust up button to turn the headlight on and off. While the headlight is on the display’s back
light is dimmed.
Speed Indication
The standard readout is real time speed, and can be switched to show average speed (AVG), and maximum
speed (MAX).
How to change speed readout...
4.Display
Trip, Odometer, & Range
Short press the M button to switch from TRIP, ODO, & RANGE on the display. The cycle order is TRIP/AVG,
ODO/MAX, then RANGE/AVG. After 5 seconds with no operation preformed on the M button and the bike
speed greater than 0 the display screen will switch back to the main interface. The symbols below will indi-
cate which value is being shown.
ODO
TRIP
RANGE
Light On Indication Light Off Indication

Display
13
Battery Power
Battery power is shown by a battery bar indicator and percentage. The battery bar divides the power level into
5 bars. After battery capacity is lower than 5% the display enters low voltage mode. In this mode the battery
level shows 0 bars. The battery outline will start blinking after reaching 1Hz, and with no power output from
the motor, pedal assist will be disabled. The PAS level is displayed as OFF or 0. To get out of low voltage
mode the battery will need to be charged.
Walk Mode
When speed is below 3mph long press and continue to hold the adjust down (down arrow) button to enter
walk mode. Upon entering walk mode the display will show a walk mode symbol and the real-time speed
while the PAS level displays as off (see image below). Release the adjust down button to exit walk mode. The
motor is turned off and the display returns to the main interface.

Display
14
Display Settings
The following description explains how users can access the settings options in their display.
Within 10 seconds of turning on the display, long press the M button to enter the settings interface.
Short press the arrow buttons to switch between settings. Short press the M button to enter a specic
setting. The selected setting will blink. Short press the arrow buttons to nd the setting option you want then
long press the M button to set the option. Long press the M button again to exit to the previous page.
In settings short press the M button to enter the next level menu and long press the M button to exit and
return to the previous level menu.
Descriptions of individuals settings to follow:
4.4.1 KM/H and MPH
Hold UP (+) for 8 seconds to enter the unit of speed selection mode.
Press UP (+) or DOWN (-) to switch between KM/H and MPH.
Press SET to conrm and exit.

Display
15

Display
16
Data Clearance
Within 10 seconds of turning on the display, when the display shows the TRIP interface, long press the M
button to show TRIP data. While the TRIP icon is blinking short press the M button to conrm data clearance.
To exit long press the M button. After clearance the subtotal mileage TRIP is 0, average speed is 0, and max
speed is 0. ODO information can not be cleared manually on the display.

Display
17
Error Code Table
Each error code corresponds to a specic fault in the system. The table below is intended for the e-bike own-
er to use as reference when working with Magnum Bikes technical support or a certied Magnum dealer.
If you still some questions about the display, please contact your Magnum dealer.
Error Code Denition Suggestion
“0x20” shown at speed Failure of controller Check controller
“0x22” shown at speed Failure of throttle Check throttle
“0x23” shown at speed Failure of motor’s phase wire Check motor
“0x24” shown at speed Failure of the motor’s hall Check controller
“0x30” shown at speed Communication failure Check connector to controller

5. Recommendations and Maintenance
5.1 General Requirements
E-bikes use metal shells to cover the electric components, so we strongly advise against the use of exces-
sive water to wash the shells and parts around them. Use a soft cloth with a neutral solution to wipe the dirt
off the shells. Afterward, wipe everything dry with a clean soft cloth.
Do not use high-pressure water or air hoses for cleaning; this can force water into electrical components,
which may cause malfunctioning.
Do not wash plastic components with excessive water. When the internal electrical parts are affected by
water the insulator may corrode, leading to power-drain or other problems.
Do not use soap solutions to wash the metal components. Non-neutral solutions may cause discoloration,
distortion, scratching, etc.
Avoid leaving the bike outdoors
When not riding, keep the bike in a location where it will be protected from snow, rain, sun, etc. Snow and
rain can cause the bike to corrode. Ultraviolet rays from the sun can cause unnecessary fading of paint or
crack any rubber or plastic on the bike.
5.2 Maintenance Schedule
To keep your E-bike in optimal condition and your riding experience at its most enjoyable, we strongly
recommend following the suggested maintenance schedule.
Recommendations & Maintenance
18
Recommended Torque Values
Handlebar 8-10 Newton Meters
Stem 8-10 Newton Meters
Saddle 18-20 Newton Meters
Front Wheel 16-25 Newton Meters
Rear Wheel 35-40 Newton Meters
Bottom Bracket Parts 35-55 Newton Meters
Pedals 35 Newton Meters
Rotor Bolts 6 Newton Meters
Disk Caliper Mount 10 Newton Meters
Crank Bolts 40 Newton Meters
Rear Derailleur Cable Pinch 6 Newton Meters
Front Derailleur Clamp 7 Newton Meters
Saddle Post Clamp 7 Newton Meters