F-Wheel DYU S1 User manual

1.Gear Shift
2.Dashboard
3.Brake handle
4.Handle bar
5.Light Switch
6.Vertical pole
7.Folding buckle
8.Pole Head(where the bike ID
code was engraved)
9.Front light
10.Front fork
11.Tire
12.Front hub
13.Disc brake plate
14.Disc brake device
15.Front fender
16.Battery case(unremovable)
17.Pedal
18.Chain Crank
19.Chain Wheel
20.Chain
21.Stand
22.Back fender
23.Back light
24.Seat Cushion
Note: Due to the company's product upgrade, some details of the product you get may be
different from this picture, but it will not affect your normal use.
PARTS LIST
Pedal×2 Charger×1 Manual×1 Allen wrench×2 Hex wrench×1
1.Before folding 2.After folding
Install the pedals：
Right foot pedal:
rotate clockwise to install
Left foot pedal:
rotate counterclockwise to install
Folding Picture：

FUNCTION INTRODUCTION
7. Headlight: ON/OFF on the left side of
the handlebar is a light switch.
8.Brakes and back light: The brakes
cannot be accelerated when the brakes
are not fully rebound. The night running
lights and the front lights are switched
synchronously. The brake lights are
bright when braking.
9. Electric and power-assisted: the
maximum design speed of electric is
25km/h (default value) (the load, road
conditions and power state are differ-
ent), hold the brake, turn the throttle
to the end and then turn on, you can
switch the maximum speed limit 20/25 h),
single gear boost.
10. Cruise at fixed speed: During
electric driving, turn the accelerator
to hold for 5~8 seconds and then
release, you can drive at a constant
speed at the current speed, turn the
accelerator or brake again to cancel the
cruise.
1.Install the handlebar after unpacking,
straighten and release the quick-release
handle, adjust the horizontal handle to
the appropriate direction, then press the
quick-release, gently hold the brake
lever a few times, and use it after the
brake line returns to the best state ,
then install the foot pedal.
2.Charging: Connect the charger and start
charging. When the indicator light of the
charger changes from red to yellow-green,
continue charging for one hour more.
3. Switch on: Pressing the power switch
directly to turn on.
4.Switch off：Pressing the power switch
directly to turn off, the dashboard
won’t work after switch off.
5.Power indicator: There are four levels
of power indicator on the meter, which
correspond to high power, medium power
and low power respectively.
6.Horn: Switch on the left side of the
handlebar. After pressing the horn
button, the horn starts to sound. It is
recommended to click. If you continue to
press the horn button, the horn will stop
automatically after 10 seconds. Please
release it before using it.
DC2.1
Charging port
Light switch Dashboard
Horn
Full handle
Throttle
Power Switch

PRODUCT PARAMETERS
Product
Dimension
Performance
parameters
Model
Bike frame material
Folding size
Unfolding size
Packing size
Center distance of front
and rear wheels 700mm
Foot-off height
Wheel size: 10inch
960*220*680mm
960*490*915mm
1000*220*550mm
130mm
10inch
Produce colors
DYU S1
Metal
black/white/red
Bike weight
Weight Capacity
Riding speed
Max speed
Power consumption per
hundred kilometers
Electric endurance
Boost battery life
Maximum climbing angle
Operating temperature
Waterproof level
(6AH)20Km / (10AH)40Km
(6AH)15kg / (10AH)17kg
120kg
20km/h
25km/h
1.1kWh
30km/50km
10~45°
15°
IP54
Remarks: Electricity, load, tire pressure, road environment, chain and axle shaft lubrica-
tion will affect the maximum speed; the continuation mileage is at 25°, load 60 kg, speed
15~20km/h, smooth hard surface, from fully charged The battery is completely depleted and
measured by continuous testing; factors such as driving habits, temperature, load, tire
pressure, and road environment will affect the mileage.

PRODUCT PARAMETERS
Accessories
parameters
Features
Model
Battery type
Battery capacity
Battery approved voltage
Charging voltage
Charger input voltage
Charging time
Motor type
Motor rated power
DYU S1
6Ah/10Ah
Lithium battery
DC36V
DC42V
AC220V
4H/6H
Brushless DC motor
250W
460r/min
36V
31±1V
15±1A
main insurance 30A
secondary insurance 10A
Remarks: Electricity, load, tire pressure, road environment, chain and axle shaft lubrica-
tion will affect the maximum speed; the continuation mileage is at 25°, load 60 kg, speed
15~20km/h, smooth hard surface, from fully charged The battery is completely depleted and
measured by continuous testing; factors such as driving habits, temperature, load, tire
pressure, and road environment will affect the mileage.
Motor rated speed
Motor rated voltage
Controller undervoltage value
Controller current limit value
Battery insurance tube
Anti-theft positioning
APP (Smart APP)
Headlight
Taillight
Seat height
Fixed speed cruise
Braking method
None
None
Yes
Yes
adjustable
8 seconds fixed speed cruise
front and rear disc brakes

CIRCUIT SCHEMATIC
Left brake
Right brake
Motor
Light switch
Horn switch
Horn
Front light 3W
5V
Hall1
5V
Phase line A
Ha
Hb
Hc
GND
Phase line B
Phase line C
GND
5V
Hall2
GND
K1
GND
Electric lock_36V
Electric lock_36V
K1
K2
K2
Brake
GND
Brake
GND
Electric lock_36V
Dashboard
36V
Night light
B-GND
K1
Brake ligh
Electric lock_36V
36V
GND
Anti-theft
device
Phase line
Anti-theftsignal
Electric lock_36V
100VAC
30A
36V battery pack
DC2.1
charging port
36V
100VAC
10A
GND
GND
Speeding_5V
Controller

PRECAUTIONS
Maintenance and maintenance:
The front and rear wheels of the vehicle should be located in the center of the front fork or frame;
After riding, please store the car in a place free of sunlight and rain;
It is forbidden to rinse with water, you can use a semi-dry cloth to wipe the body surface;
Check the motor and brakes frequently, and do not fill the brakes with oil;
Regularly check the various screws of the car and the places to be tightened, and strengthen them regularly;
Recommended torque: (Unit: kgf.cm) 60-80 horizontal screws, 175-200 vertical screws, 175-250 seat cushion
screws, 320-450 wheel screws;
Regularly check the tension of the chain, which can be adjusted by the chain regulator;
Always check the tires for scars, cracks, or excessive wear. The inner tube and valve should be perpendicular
to the hub and not skewed.
Accidentally punctured damaged or excessively worn inner and outer tires need to be replaced immediately,
please find a professional technician to repair or replace your tires.
It is forbidden to modify the key structural parts and electrical function accessories such as the frame, front
fork, vertical tube, etc. If they are damaged, they must be replaced with original accessories. Otherwise,
three guarantees will not be provided.
Three guarantees service, any loss or damage caused by modification shall be at your own risk.
Battery and charging:
Charge at 0°~ 45°, discharge at -10°~ 45°, keep the battery dry The negative pole is reversed,
and it is strictly forbidden to destroy, disassemble or disassemble the battery or short-circuit
the battery. When charging, please use the original special charger. It is strictly forbidden to
use other chargers. Do not exceed 6 hours. The charging current does not exceed 2A. When not in
use for a long time, please keep the battery in a cool and dry place and charge the battery for
two hours every month. The user must follow the instructions for use when charging, otherwise the
consequences will be at your own risk. Pay attention to the type of battery and the applicable
voltage that the charger can charge, and it is strictly forbidden to mix. When charging, it should
be placed in a ventilated environment. It is strictly forbidden to charge in confined spaces or
high temperature environments. When charging, insert the battery first, then add the city power;
after charging, cut off the city power first, and then pull out the battery plug. When the green
light is on, the power supply should be cut off in time. It is forbidden to connect the charger
to the AC power supply without load for a long time without charging. During the charging process,
if the indicator is abnormal, there is an odor, or the charger case is overheated, you should
stop charging immediately, and repair or replace the charger. Used batteries are hazardous
chemicals. It is not allowed to dismantle used batteries without authorization, and the relevant
professional departments shall organize the recycling. In the process of use and storage, pay
attention to avoid the entry of foreign objects, especially to avoid the inflow of water or other
liquids, so as not to cause a short circuit inside the charger. The charger should not be carried
with the vehicle as much as possible. If it is indeed necessary to carry it, it should be placed
in the tool box after shock absorption treatment. Do not disassemble or replace the components
in the charger.
Riding:
Do not use it until you read the instructions carefully and understand the performance of the product;
Do not lend this product to people who will not operate it, so as not to cause injury;
Please wear a safety helmet when riding a bicycle, and abide by the traffic rules. It is not allowed to
exercise on motor vehicle lanes and roads with many pedestrians;
Carry personnel or articles in accordance with the requirements of laws and regulations, do not park in
the building entrance hall, evacuation stairs, walkways and safe entrances and exits;
Do not charge and park in residential buildings. Keep away from combustible materials when charging.
The charging time should not be too long;
Drive on the right in non-motorized lanes, downhill and paved roads not exceeding 15km/h, and drive on
the right when there is no non-motorized lane;
When adjusting the handlebar or saddle, be careful not to leak the safety line marks of the stem and
saddle tube;
Before riding, check whether the front and rear brakes are working properly, check the tightening status
of the handlebars and front and rear wheels, and check whether the reflector is damaged or polluted;
When using the motor, please pay attention to avoid strong impact and keep the shaft lubricated;
It is not allowed to ride more than the maximum negative weight of the car body (maximum load 120KG);
If you ride in rain or snow, the braking distance will be extended. Pay attention to slow down;
Try to avoid trips in bad weather such as heavy rain;
One-handed riding is prohibited, please wear a helmet, suitable for people 16 to 45 years old,
and persons under 16 years old are strictly prohibited to drive electric bicycles on the road.

DYU SMART ELECTRIC BIKE S1
INSTRUCTION
By F-Wheel

Manufacturer: Shenzhen Counterbalance Technology Co., Ltd.
Production address: No. 105, Pingshan Industrial Road, Tangxia Town, Dongguan City, Guangdong Province
Website:fwheel.cc
Phone: [phone]
Responsibility statement:
● The product model, specifications or related information mentioned in this manual, the company
reserves the right to modify and final interpretation;
● The functions of the specific model mentioned in this manual are only applicable to the specific model;
● The product model, specifications or related information mentioned in this manual are subject to any
modification or change without prior notice;
● Without the prior written permission of the company, it is not allowed to copy, modify, reprint,
disseminate or publish the contents of the manual in any form;
● Please read this user manual carefully before using the product, and follow the operation manual,
otherwise the product damage due to improper use or error or personal and property losses, the
company does not assume responsibility.
● For product related information, please visit the official website: www.fwheel.cc