magnum Cosmo X Urban Electric Bike User Manual

: June 6, 2024
: magnum

magnum Cosmo X Urban Electric Bike

General Introduction

Welcome

We encourage you to join our Facebook group “Magnum Bikes Community” which you can find 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.

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.

Service and Technical Support

This manual is intended as a general overview of your new E-bike, and is therefore not an extensive reference. 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 find a dealer close to you.

Bike Components

Handlebar

Handlebar

Left Brake Lever
Left Grip
Display Controller
Display
Adjustable Stem
Right Brake Lever
Right Grip
Thumb Throttle
Horn
Shifter

E-Bikes

E-Bikes

Rear Light
Rear Fender
Motor
Free Wheel
Rear Derailleur
Carrier
Rear Disc Brake
Saddle Handle
Saddle
Seatpost
Saddle Quick Release
Battery
Kickstand
Chain
Pedal
Crankset
Controller
Fender Holder
Adjustable Stem
Front Light
Front Fender
Tire
Wheel Reflector
Front Fork
Front Disc Brake

Technical Data

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

Installation and Adjustment

Handlebar and Stem Assembly

Handlebar and Stem Assembly 01

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.

Handlebar and Stem Assembly 02

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.

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.

Assembly of the Pedals 01

Assembly of the Pedals 02

Seat Position

Seat Position 01

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 flat on the pedal in the bottom position of the crank cycle. The toes must still be able to touch the ground comfortably.

Seat Position 02

Seat Position 03

Seat Position 04

Saddle Height

The quick-release lever must require noticeable effort to put into fully closed position to prevent any undesired 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.

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).

Saddle Height

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.

Saddle Adjustment

The saddle can also be tilted and adjusted in the forward / back direction.
Loosen the bolt at the bottom (4).

Saddle Adjustment

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.

Battery and Charger

Overview

Overview 01

A Battery
B Capacity Level Light
C Power Button
D Charging Socket

WARNING
Please ensure that the battery is locked in place before use

Overview 02

A AC Plug¹
B Charger
C Charging Indicator
D Battery Plug

¹ Type will vary

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 experienced technician for service or replacement.
In the unlikely case that the battery catches fire, do NOT attempt to put it out with water. Use sand or another fire retardant instead and call emergency services immediately.

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

Installing and Removing the Battery

Charging

Charging at temperatures below 32°F (0°C) or above 140°F (60°C) can cause the battery to charge insufficiently 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

Display

Appearance

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.

Powering ON OFF

Indicators & Buttons

Indicators & Buttons 01

Indicators & Buttons 02

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

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.

Pedal Assist Level 01

Pedal Assist Level 02

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 indicate which value is being shown.

Trip, Odometer & Range

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.

Light Control

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…

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.

Battery Power

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.

Walk Mode

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 specific setting. The selected setting will blink. Short press the arrow buttons to find 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:

Display Settings 01 Display Settings 02

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 confirm 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.

Data Clearance

Error Code Table
Each error code corresponds to a specific 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 certified Magnum dealer.

Error Code	Definition	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

If you still some questions about the display, please contact your Magnum dealer.

Recommendations and Maintenance

General Requirements

E-bikes use metal shells to cover the electric components, so we strongly advise against the use of excessive 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.

Recommended Torque Values

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.

Maintenance Schedule| Each Ride| Weekly| Monthly| 6 Months| Yearly
---|---|---|---|---|---
Tire Pressure| X| | | |
Tire Condition| X| | | |
Visual Inspection| X| | | |
Brake Lever Pressure| X| | | |
Quick Releases| X| | | |
Handlebar Alignment| X| | | |
Saddle Alignment| X| | | |
Battery Pack Locked| X| | | |
Wheel Check| X| | | |
Inspect Frame Condition¹| | X| | |
Clean & Lubricate Chain| | X| | |
Check Brake Pads| | X| | |
Lubricate Forks| | | X| |
Lubricate Brakes & Cables| | | X| |
Lubricate Folding Mechanism| | | X| |
Check all Bolts & Torque Settings| | | X| |
Clean Bicycle| | | X| |
Charge Battery| | | X| |
Check Heel Spokes| | | X| |
Inspect Rim Condition| | | X| |
Inspect Saddle, Rails & Clamp| | | X| |
Grease Pedal Bearings| | | | X|
Check Hub Bearings| | | | X|
Check Headset Bearings| | | | X|
Check Bottom Bracket Bearings| | | | X|
Replace Brake Pads| | | | | X
Replace Brake Cables²| | | | | X
Replace Tires²| | | | | X
¹include welds for fissures
²depends on use

Warning
As with all mechanical components, electrically power assisted cycles (EPAC) are subjected to wear and high stresses. Different materials and components may react to wear or stress fatigue in different ways. If the design life of a component has been exceeded, it may suddenly fail, possibly causing injuries to the rider. Any form of crack, scratches or change of coloring in highly stressed areas indicate that the life of the component has been reached and it should be replaced.

Definition of Tampering and Recommendations

Category 1

Category 2

Category 3

Category 4

Warning
Modifications to any part of your bike, such as the fork or frame, may make that part or the entire bike un-safe. A poorly installed or modified component can increase the stress on all other parts, greatly increasing their chance of failure. Modifications can also adversely affect the handling of your bike, resulting in loss of control, falls and serious injury. Please do not add, remove, or modify parts of your bike in any way before consulting with a trained bike technician. We recommend you consult with us at before you make modifications or add parts, in order to confirm their safety and compatibility with your bike.

Warranty

Your Magnum E-bike comes with a limited warranty. Please visit www.magnumbikes.com or your local Magnum dealer for details.
Bike must be registered at www.magnumbikes.com/warranty in order to be covered by the one year warranty.