CYCROWN CycUltra User manual
Table of Contents
Product Overview 01
In the Box 01
Warranty 17
Contact Us 17
Installing Instructions 02
Charging Instructions 07
Riding Modes 09
Display and Settings 10
For Your Safety 13
Battery Maintenance 14
Storage 15
Parameters 16
Cleaning 15
End-of-Life Disposal 16
Chain
Rear Shock
Battery
Disc Brake Rotor Pedal
Tire
Hydraulic
Suspension Fork
Front Light Seat
Rear Light
Motor
Computer
LCD Backlight Switch
Light/Horn Switch
Thumb Throttle
Power Switch
Hydraulic Brake
Computer
Thumb Shifter
2. In the Box
01
1x Bike Frame
+ Rear Wheel 1x Charger
1x User Manual 5x Hex Wrench
1x Brand
Promotion Card 1x Screwdriver2x Key
1x Front Wheel 1x Quick Release 2x Pedal 1x Seat with Seatpost
User’s
Manual Brand
Promotion
Card
1x Multifunction Wrench
Check the parts and accessories carefully. If there are missing or damaged parts/accesso-
ries, please contact online customer service support.
LR
1.Product Overview
02
180°
3.1 Adjust the stem
After removing the bike from the package,
use an appropriate hex key to loosen the
screws used to hold the stem to the
steerer tube and turn the stem 180°.
1
Before Installation
Tighten the screws after the stem is adjusted.
2
3. Installing Instructions
03
Take out the kickstand and remove the screws and nuts
with an appropriate hex key and the multifunction wrench.
1Align the screw holes of the kickstand to the kickstand
mounting holes on the bike frame. Put back on the 2 screws
with the screw heads facing outside and nuts facing the bike.
2
Tighten the screws holding the handlebar.
3
3.2 Install the handlebar
3.3 Install the kickstand
Put the handlebar on the stem and adjust it to
make it perpendicular to the bicycle frame.
2
Remove the 4 screws used to hold the handlebar
with an appropriate hex key.
1
90°
Tighten the 2 screws.
04
3.4 Assemble and install the front wheel
Make sure the lever is on the same side with the disc
brake rotor.
Both cone springs should point toward the wheel hub.
Keep the lever open and rotate the thumb nut a couple
of turns to leave enough room for the fork dropouts.
tighten the thumb nut until the lever can stay in parallel to
the floor without being held. Use the palm of your hand to
close the lever fully without touching the brake rotor.
release.
both sides into the wheel and pre-fasten the thumb nut.
Lower the front fork onto the front wheel. The brake rotor
should go into the brake caliper in between the brake pads
and the axle should enter the fork dropouts fully.
Check if the wheel is fully seated in the dropouts.
the bike, so the thumb nut must be tight enough so
and keeps the axle and wheel firmly in place.
05
Tighten the pedals with hands at first. Spin the right pedal clockwise and the left pedal counterclockwise.
2Then tighten the pedals with the provided multifunction wrench.
1
3.5 Install the front light
3.6 Install the pedals
Loosen the screw used to hold the light mount
with an appropriate hex key and the multifunction
wrench.
1Place the light facing towards and tighten the
screw with the gasket sitting between the light
mount and the screw head.
2
LR
06
3.7 Install the saddle
down the saddle to adjust heights.
1Close the clamp to fix the seatpost in place. Do not install
the seat with the safety line higher than the clamp.
3
3.8 Battery Lock Switch
(Before riding, familiarize yourself with the battery lock switch and charging port.)
3.9 Remove the battery
2
1When the key is in position 1, the battery is
locked to the frame. The key can be removed.
And you can ride the bike.
When the key is in position 2, the battery is in
unlocked status. You can remove the battery from
the frame. To prevent accidents, do make sure the
battery in lock status (key in position 1) before
moving or riding the bike.
!
Safety Line
Battery charging port
Position 1
Position 2
Attention! When removing the battery, do not drop or damage it. When installing
the battery, align the battery to the battery compartment, and push up the battery.
Give it a hard push and there will be a clicking sound indicating the battery is
secured and will not move around.
07
4. Charging Instructions
the bike, place the charger on a flat and safe surface.
connector from the charging port on the bike.
Battery charging port
4.1 Bike charging instructions
Make sure the power of the bike is turned off. Insert the key
and turn it clockwise to the unlocked position.
1When the battery is unlocked, it will pop out but not fall down.
Rotate the knob switch on the battery to detach the battery
from the bike. Please hold the battery while removing it.
2
08
mentioned previously for detailed information).
the battery, place the charger on a flat and safe surface.
connector from the charging port on the battery.
4.2 Battery charging instructions
(Also, you can charge the battery after it is removed from the bike.)
09
5. Riding Modes
Thumb throttle
and you can switch the speed from 1 to 5
by pressing the thumb throttle .
PAS
PAS level by pressing the + or - button.
Pedal
normal bike.
Speed Modes Full Throttle Pedal Assist
0
1-5
LCD Backlight Switch
Front Light And Horn Switch
Thumb Throttle
Power Switch
Hydraulic Brake
Bike Computer
Thumb Shifter
10
6. Display and Buttons
Front Light & Horn Buttons
Front Light
Horn
Buttons
+ Button
- Button
Power Button
Backlight Button
Switch Button
There are five buttons on the operation unit
on/off button, button, button, Backlight
button, and Switch button.
Press to switch speed modes from 1 to 5
Press to switch speed modes from 5 to 1
Battery Level
Speed Unit
Metric：KM/H
Imperial：MPH
PAS Level
Current Speed
Maximum Speed
Value and Unit
Power/+/- Buttons
11
OSD
Basic operations
1. Power on/off
After holding the power button, the computer is connected the working power of the
controller and starts to work. In the power-on state, press and hold the power button
to turn off the power of the electric bike. In the shutdown state, the computer does
not use the battery power, and the leakage current is less than 1uA.
If the e-bike is not used for over 10 minutes, the computer will automatically
shut down.
2. Select ODO/TRIP/MAX/AVG
3. Walk mode (walk assist)
After the computer is turned on, the default display information is current speed (mph)
and odometer (mile). Press to switch between odometer (mile), trip odometer
(mile), top speed (mph), and average speed (mph).
Press and hold for walk mode. The e-bike will travel at a constant speed of 6km/h
and there is a on the display. Press again and the e-bike will stop power
output and return to the state before walk mode.
Only use the walk mode when you are walking the bike. Never use the walk
mode in riding.
Battery Level
Speed
Fault Code
dometer
Trip dometer
Top Speed
Average Speed
Walk Mode
Front Light
Bluetooth Connection
USB Connection
Cruise Control
Speed Unit
MetricKM/H
ImperialMPH
PAS Level
Value and Unit
WhAhV
mile/h
km/h
12
Customize settings
Other operations
Customizable parameters:
1. Reset trip odometer
Select between the imperial and metric system
In the power-on state, when the speed is 0 on the display
(1) Hold and for over 2 sec to enter the selection interface of parameter setting items;
(2) Press or hold or to switch the setting items and then press to enter
parameter selecting status;
(3)
select the parameters;
(4) Press to save the setting and return to the selection interface of parameter
setting items;
(5)
items;
4. Turn on/off LCD backlight
6. Battery level
7. Fault code
5. Select PAS levels
Press to turn on/off the LCD backlight。
Press or to adjust the PAS levels, thereby changing the output power of the
motor.
The battery levels are displayed in the form of 5 bars. When the battery level is full,
there are 5 bars. When the battery is undervoltage, the outer border of the battery icon
will flash, indicating that it needs to be charged immediately.
When the electronic control system fails, the computer will automatically display the
error code. For the definition of the detailed error code, see Attached Table 1.
The computer can record trip distance and total travel distance. The trip odometer will
not be automatically reset after the computer is turned off and you need to reset it
manually. The odometer does not support reset. The trip odometer resetting steps are
Press to enter parameter selecting status. Press or to select between 00
and 01. Press to save the setting and return to the selection interface of parameter
setting items;
When an error code appears on the display, please troubleshoot in time, the
electric bike will not be able to work normally after a fault occurs.
13
Before Your First Ride
are effective.
Check the seat, gears, and tire pressure. Proper tire pressure can avoid flat tires and
improve performance, including distance traveled per inflation.
Check the handlebar and screws at least once a week.
Performing the above routine checks before and after each ride can help you keep
your bike at peak performance and spot potential problems before they become safety
hazards.
Bike Mechanic Check Every Six Months
and adjusted by an experienced mechanic.
Notice
Helmets can reduce serious head injuries by 85%.
Knee pads can reduce knee injuries by 32%.
7. For Your Safety
For safe riding, please read the following information carefully. Before riding, be sure
to check that your brakes are working normally.
When the speed is 0 on the main interface, hold and for at least 2 seconds to
reset the trip odometer. The main interface will flash once during the reset process.
Attached Table 1: Fault code names and definitions
Fault codes of YL-01 and YL-02 protocols
14
8. Battery Maintenance
Be aware of your surroundings and avoid obstacles and unsafe surfaces.
Ride in the open and flat. Try to avoid slopes or places with many pedestrians.
Do not ride at high speeds, on uneven terrains, in bad weather or in other unsafe
conditions.
damage.
Do not attempt to carry passengers or heavy objects. This bike can only hold the weight
of one person at a time. Do not exceed the weight limit.
Ride e-bikes only where permitted. You must obey local laws and be courteous to
pedestrians.
A well-maintained battery performs well even after high mileage. Charge the battery
after each ride to prevent the battery from draining from a full charge. Batteries perform
best when used at room temperature (70°F [22°C]). However, using it at temperatures
below 32°F (0°C) will degrade performance. In general, at -4°F (-20°C), battery perfor-
mance drops to half of that at 70°F (22°C). When the temperature rises, battery life will
resume.
Under normal circumstances, a fully charged battery can hold power for 90 days in
standby mode. Remember to charge the battery after each use. Draining the battery
charge and discharge of the battery. Damages due to over-discharge or over-discharge
are not covered by the warranty.
Refer to local laws and regulations regarding battery recycling and/or disposal.
Warning
To avoid accidental movement while waiting at a traffic light, set the speed mode to
zero, or apply brakes.
When riding, make sure your feet are always on the pedals and your hands on the
handlebars. It is dangerous to take your feet off the pedals in riding.
heed the above warning increases the risk of serious injury and, in rare cases, death.
are comfortable with, and be prepared to stop at any time.
15
Notice
extreme temperatures (both hot and cold) accelerates the aging process of plastic parts and
can reduce battery life.
Store in a cool dry place.
Do not store it in dusty environments as damage may occur over time. Cover the bike to
prevent dust.
The bike should be fully charged before storage to prevent the battery from being over-dis-
charged after long-term storage.
If the electric bike is to be stored for more than a month, discharge and charge the battery at
least once a month.
10. Storage
9. Cleaning
Notice
Note
Do not perform any maintenance while the e-bike is powered on or charged.
Store or charge the battery within the temperature range of 20°C-25°C / 68°F-77°F. Do not
pierce the battery.
manual), do not ride the bike.
may occur.
Before cleaning, make sure the power is turned off and the charging cable is unplugged.
guarantee a longer lifespan and a smoother ride.
Wipe the outer body of the e-bike with a soft and dry microfiber cloth.
Check around the wheel to make sure there are no foreign objects. The design of this electric
bike makes wheel maintenance easy.
submerge the e-Bike in water.
Do not use alcohol, gasoline, acetone, or other corrosive/volatile solvents to clean the bike.
These substances can damage the exterior and the internal structure of the bike.
Item Parameters
Product Dimensions
Package Dimensions
Max. Incline
Max. Capacity
Max. Speed
Range
Motor
Battery Voltage
Charge Voltage
Wheel Size
Charge Time
Water Resistance
Storage Temperature
Charging Temperature
Warranty
CycUltra
79*30*46.8in / 201*76*119cm
65*13.8*32.7in. / 165*35*83cm
11° (rider weighs 220.4 lb. / 100kg)
330 LBS / 150 KG
28 mph / 45 km/h
30-50miles
750W
48V 15AH
100-240V/3A
26 in.
4-5 hours
IPX4
20°C-25°C / 68°F-77°F
-4°F-140°F /-20°C~60°C
32°F-104°F / 0°C-40°C
1 Year Limited
16
12. Parameters
11. End-of-Life Disposal
This product cannot be disposed of by incineration, landfilling or mixing with household waste.
Improper handling of the battery in this product may cause the battery to heat, rupture, or ignite,
which could result in serious injury. The substances inside the battery pose a chemical risk to
dispose of the entire device at an e-waste recycling center or through an e-waste recycling
center, project or facility.
Local regulations and laws related to the recycling and disposal of lithium-ion batteries and/or
products containing lithium-ion batteries vary by national, state, and local government. In order
to properly dispose of batteries and/or products containing batteries, you must check the laws
and regulations that correspond to where you live.
regulations and laws. For additional information on disposing of batteries and electronics or
electronic waste, Please contact your local waste management office or household waste
disposal service.
34.2kg / 75.4lb
14. Contact Us
17
13. Warranty
Dear Customer
Warranty Disclaimer
Thank you for purchasing our foldable lithium battery bicycle! After purchasing our products,
please provide correct, omplete, and true personal information and fill in the warranty card to
The following situations are not covered by the warranty service, and you need to pay the
1. You can receive warranty service with the warranty card. The serial number on the bike body
Then the factory date or the order date will be the start date of the warranty and we will confirm if
it is still within the repair date.
2. From the date of sale to the warranty expiration day, If there is a performance failure caused
by non-human damage, once confirmed, our company promises to repair it free of charge. If the
performance failure caused by man-made damage, once confirmed, our company will carry out
paid maintenance.
1. Total riding distance is over 100 Kilometers.
2. Any damage caused by not following the instructions for use of the electric bike.
3. Lost or changed electric bike number.
4. Product damage caused by accidental factors or improper use, such as mechanical damage,
breakage, and serious impact on the product, oxidation, etc.
falls, etc.), or damage
caused by extreme conditions.
6. Any damage caused by abnormal storage conditions or electrical resistance, such as fire,
7. Loss of wearing parts, such as packaging materials and various technical materials.
or other issues.
If you have issues with riding, maintenance and safety, or faults/failures with
www.cycrown.com
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