Carratt E-3400RM Specification sheet

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E-3400RM
INSTRUCTIONS FOR USE AND MAINTENANCE
MODE D'EMPLOI ET D'ENTRETIEN

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USER’S MANUAL FOR
E-3400RM

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Congratulations on your purchase of this E-3400RM. It has been carefully designed and manufactured
according to the latest international quality standards, including:
EN 15194
Please read this instruction manual carefully and thoroughly before riding.
It contains important information on safety, and maintenance.
It is the owner’s responsibility to read this manual before riding.
Should any original component prove defective in terms of workmanship within its warranty period, we
will replace it. Warranty period for the electric bikes is as follows.
Frames and rigid fork: 5 years
Electrical components: 2 years with proper care and maintenance
All other components: 2 years with proper care and maintenance.
As for the battery, it is guaranteed against manufacturing defects for 6 months on the consumable parts
(cells) and 24 months on the electrical parts, as long as the instructions for use and storage indicated
below are respected:
✓Do not directly connect the positive terminal to the negative one of this battery;
✓Do not place the battery in high-temperature area, and no heating, no exposing under the sun,
no putting near fire and etc.;
✓Do not place the battery in water, salt, acidic or alkalescent liquid and avoid being caught in rain;
✓Do not disassemble the battery pack without professional technician’s guide;
✓Keep in shady, cool and dry condition when battery is not used for quite a long time, and fully
charge the battery every month;
✓Please charge this battery, with the exclusive charger accompanied with your bike;
✓Return your used battery to your dealer.
This warranty does not include labors and transportation charges. The company cannot accept any
responsibility for consequential or special damage. This warranty applies only to the original retail
purchaser who must have a proof of purchase in order to validate any claim. This warranty applies only in
the case of defective components and does not cover the effects of normal wear, for rental use, for
professional use, no damage caused by accident, abuse, excessive loads, neglect, improper assembly,
improper maintenance or the addition of any item inconsistent with the original intended use of the
bicycle.
No bicycle is indestructible and no claims can be accepted for damage caused by improper use, for rental
use, for professional use, competition use, stunt riding, ramp jumping and leaping or similar activities.
Claims must be submitted through your retailer. Your statutory rights are not affected.

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The company reserves the right to change or amend any specification without notice. All information and
specifications within this brochure are correct at time of printing.
Ⅰ. Conditions for riding:
This E-3400RM is designed for riding on road or riding on a paved surface where the tyres do not lose
ground contact. It must be properly maintained according to the instructions found within this book;
The maximum weight of the rider, bike and bags must to be less than 100kg.
Safe cycling and safety tips:
Before you ride this e-bike, always make sure it is in a safe operating condition. Particularly check that
your:
•Nuts, bolts, quick-release and parts refastened tight and not worn or damaged.
•Riding position is comfortable.
•Brakes are operating effectively.
•Steering is free with no excessive play.
•Wheels run true and hub bearings are correctly adjusted.
•Wheels are properly secured and locked to frame/fork.
•Tyres are in good condition andinflated to correct pressure.
•Pedals are securely tightened to pedal cranks.
•Gears are correctly adjusted.
•All reflectors are in position.
WARNING WHEELS: Every six months, your pedal electric assistance bicycle should be
professionally checked to ensure that it is in correct and safe working order. It is the responsibility of the
rider to ensure all parts are in working order prior to riding.
REGULAR ATTENTION MUST BE PAID TO THE SPOKE TENSION.
Warning: You are warned that you assume the risk for personal injury, damage or losses if
you breach the above conditions and, the warranty will be void automatically.

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Ⅱ. Name E-3400RM components
Instruction
THE "EXTRAORDINARY" MAINTENANCE OF THE MECHANICAL AND ELECTRICAL COMPONENTS MUST BE
PERFORMED BY A QUALIFIED TECHNICIAN.
1. Rim
2. Tyre & tubes
3. Spokes
4. Disc brake
5. Suspension fork
6. Front hub
7. Handlebar & stem
8. Brake lever
9. Grip shifter
10. Frame
11. Seat clamp
12. Seat post
13. Saddle
14. Crank set
15. Pedal
16. Chain
17. Display
18. Rear derailleur
19. Rear hub
20. Freewheel
21. Rear derailleur
22. Grip
23. Battery
24. Controller
25. Battery lock
26.Charging port
27.Rear motor

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Ⅲ. MANUAL FOR THE ELECTRIC PARTS OF THE E-3400RM
The rider must pedal forward to obtain any assistance from the motor. This is an important safety feature.
This electric pedal assistance bikes will provide assistance up to 25 Km/h, after that the motor will cut out.
You may go faster but must do so under your own effort without the electric assistance.
To start the e-bike turn on the main switch on the side of the battery, the LCD on the handlebar panel will
light up. The motor will not work until you pedal a full revolution of the chain wheel. This feature protects
the motor and controller from damage and extends the service life of the electric components.
Contents
1. Structure of an electric assistance bike
2. Important safety cautions
3. Operation
4. Battery installation & usage
5. LCD and function
6. Using and maintaining the battery
7. Using and maintaining the charger
8. Using and maintaining the motor
9. Maintaining the controller
10. Simple troubleshooting
11. Electric circuit diagram and specifications
12. Main technical specification sheet
1. Structure of this E-BIKE (See partⅠ.Fig 1~1.1)
2. Important safety cautions:
• We strongly advise wearing an approved helmet, which meets local standards.
•Obey local road rules when riding on public roads.
•Be aware of traffic conditions
•The rider must be over 14 years old.
•Have your bike serviced only by authorized bicycle shops.
•Regular servicing will ensure a better and safe riding performance.
•Do not exceed more than 100kg load on bicycle, including rider himself.
•Never have more than one rider on the bicycle.
•Ensure regular maintenance is carried out on the bike according to this owner’s manual
• Do not open or attempt maintenance on any electrical components yourself. Contact your local
bicycle specialist for qualified service and maintenance when needed.
•Never jump, race, perform stunts or abuse yourbicycle.
•Never ride under the influence of intoxicating drugs or alcohol.
•We strongly recommend using lights, when riding in the dark, fog or poor visibility.
•When cleaning this bike, please wipe the surface with a piece of soft cloth. For very dirty areas you
can wipe it with a little neutral soap and water.
Warning: do not wash this electric bike direct with spraying water especially pressure washers.
Avoid water entering electric components as this may result in damage of the electric components.

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3. Operation
E-3400RM is a revolutionary transport means, applying aluminum frame, Li-ion battery, a super high
efficiency electric central motor and controller with electric pedal assistance system, to support normal
pedaling. The above-mentioned equipment will ensure safe riding with excellent function and
performance. It is important for you to note the following guidelines to ensure getting the best possible
experience from your electric bicycle.
Checklist before riding
3.1.1 Please ensure tyres are fully inflated as indicated on the tyre wall, before riding.
Remember, performance of the bike is directly related to the weight of the rider and baggage/load,
together with the stored energy in the battery;
3.1.2 Charge overnight, prior to riding the next day;
3.1.3 Apply chain oil periodically and clean if dirty or gummed up, using degreaser, then wipe clean and oil
bicycle chain again.
4. Battery installation & usage
The electric bikes have the battery positioned onto the frame down tube (the battery pack is directly
connected to the controller box which is under battery bottom.
4.1 Lift the battery above the frame down tube, aligned position of battery slides then put the battery
case inside the slot, ensure a snug fit, then lock it tightly. Fixing the battery well, use the key to lock the
battery with slide. (Fig 3.1~3.3)
(Fig. 3.1)
(Fig. 3.3)
(Fig. 3.2)

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4.2 Refer to the battery lock and unlock, see the
following pictures for reference.
From the initial position 6 o’clock (where the battery
and tube is locked), insert the key into the key slot,
and turn it counterclockwise to position 12 o’clock
(Then the battery is unlocked).
On the contrary, you can unlock it. (Fig 3.4)
Battery charge
If an AC outlet is available within reach of your bike, you can charge your bike directly with the battery still
attached to the bike. The charging port is covered by a plastic cap (Fig 4.3). Please open it then you will
find one port for charge directly (Fig 4.4).
Removing the battery is useful for charging in a location where the bicycle may not fit or when no
reachable AC power supply exists at the place where the bike is parked
Before removing the battery from the bike, you need to unlock as following steps:
* Turn it counterclockwise from 6 o’clock to 12 o’clock position. (refer Fig 3.4)
* Remember to take off and care about the key after you withdraw from the battery!!!
(Fig. 4.4)
(Fig. 4.3)
(Fig. 3.4)

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5. LCD looking with Function
Button Definition
There are three buttons ( ) on display. In this manual, we use words
ON/OFF, UP, DOWN to represent these 3 symbols.
5.1 Power On/Off
To switch on the E-bike system and provide the power supply to the controller, hold the
On/Off button for 2s.
To switch off E-bike system, hold the On/Off button for 2s. The E-bike system no longer
uses the battery power.
When E-bike system is switched off, the leakage current is less than 1 μA.
When the E-bike is parked for approx. 10 minutes, the E-bike system switches off
automatically.

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5.2 Assist level operating
The assist level of the E-bike drive can be changed anytime, even during riding.
The assist level ranges from 0 to 3 (level 0 to level 3). The default assist level is “1” when
the display is started. The output power is zero on Level “0”. Level “1” is the minimum
output power. Level “3” is the maximum output power.
Press UP/DOWN button to switch between the E-bike system assist levels and change the
motor output power.
5.3 Speed mode switch& Mileage mode switch
U represents unit settings, “1” is mile, and “2” is kilometer. The default value is “2”.
To toggle the unit, press the UP/DOWN button until the desired unit is displayed.
To store a changed setting, press the ON/OFF button and access trip distance clearance
settings again or hold the ON/OFF button for 2s to exit General Settings.

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5.4 Backlight On/Off
To switch on E-bike front light or rear light, press the “UP”button for 2s. The display
backlight brightness is automatically reduced while the screen displays.
Likewise, press the “UP” button for 2s again, the bike front light and rear light can be
switched off and display backlight recover its brightness.
*If E-bike front light or rear light is independent of “UP” button, the “UP” button can only
be used to switch on/off the display backlight.
Backlight settings
bL represents backlight settings. Level “1” is the lowest brightness. Level “2” is the
medium brightness. Level “3” is the highest brightness. The default value is “1”.
To change the backlight brightness, press the UP/DOWN button to increase or decrease
until the desired brightness is displayed.
To store a changed setting, press the ON/OFF button and access unit toggling settings.

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5.5 “6km/h” walk
To activate the push-assistance function, press and hold the DOWN button. After 2
seconds, E-bike is activated to go at a uniform speed of 6 Km/h while the screen displays
“P”.
The push-assistance function will be switched off as soon as you release the DOWN
button.
Push-assistance function may only be used when pushing the E-bike. Be aware of danger
of injury when bike wheels do not have ground contact while using the push-assistance
function.
5.6 Display Interface
After switching on the E-bike system, the display shows Current Speed and ODO (total
distance) by default.
Press the ON/OFF button to switch between indication functions below:
ODO (Km)→Trip (Km) →Trip Time (Hour) →Motor Power (W)→Max. Speed (Km/h)
→Avg.
Speed (Km/h) →ODO (Km). Finally, it cycles back to ODO km again.

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5.7 Battery Indicator
The five battery power bars represent the capacity of the battery. The five battery bars
are bright when the battery is in full voltage. When the battery is in low voltage, battery
frame will flash at the frequency of 1HZ to give a notice that the battery needs to be
recharged immediately.
5.8 Error code define
The components of the E-bike system are continuously and automatically monitored.
When an error is detected, the respective error code is indicated in text indication area.
See the definition on the table here below.
Error Code
Error description
21
Current Abnormality
22
Throttle Abnormality
23
Motor Phase Abnormality
24
Motor Hall Signal Abnormality
25
Brake Abnormality
30
Communication Abnormality
5.9 Trip Distance Clearance
After the E-bike system is switched on, hold both the UP button and DOWN button simultaneously for
2s to access general settings menu.
TC represents trip distance clearance settings.
Press the UP/DOWN button to choose Y or N. The default value is N.
To store a changed setting, press the ON/OFF button and access backlight settings.

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Trip Distance Clearance Settings Interface
6. Using and maintaining the battery
Advantages of Li-ion battery. this e-bikes is supplied with high quality Li-ion batteries, which are light and
create no pollution to the environment, as a typical green energy source. As well as the above features,
the Li-ion batteries have the following advantages:
• charging without memory effect
• big electric energy capacity, small volume, light in weight, with large current output, suitable for high
power vehicles.
• long life
• a wide working range of temperature: -10°C to +40°C
To ensure a longer battery life and protecting it from damage, please use and maintain it according to the
guideline below:
6.1 During your riding, when you find the power decreased on the
display LCD (see the Fig. 6.1), the battery must be charged in short time!
6.2. Remember to charge the battery full before you ride for a
long trip!
You can see the battery charge on display (Fig 6.1). Press the
button on the top of battery case (Fig 6.2), when the power is full,
the blu light is bright, when the light is red you need to charge
immediately.
6.3 If the bike is ridden less frequently or stored for quite a long
time, it must be fully charged every month.
(Fig. 6.1)
(Fig. 6.2)

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Warning:
1) The battery life may be reduced after long storage without regular charging as instructed above, due to
natural discharge;
2) Never use any metals directly to connect the two poles of the battery, otherwise, the battery will be
damaged due to short circuit.
3) Never put the battery near to fire or heat source.
4) Never strongly shake, punch and toss the battery.
5) When the battery pack is removed from the bike, keep it out of reach of children, to avoid any
unexpected accident.
6) The battery is forbidden to be disassembled.
7. Using and maintaining the battery charger
Before charging the battery, please read the owner’s manual and the charger manual accompanied with
your bike, if any. Also, please note the following points regarding battery charger.
* Do not use this charger in an environment of explosive gas and corrosive substances.
* Never shake, punch or toss the battery charger, to protect it from damage.
* Always protect the battery charger from rain and moisture!
* This battery charger should be normally used under temperature, ranged between 0°C to +40°C
* The charger is for bidden to be disassembled.
*Charge the battery in a dry place indoors.
* You should only use the charger provided with the electric bike, otherwise damage could occur to your
battery and void the guarantee.
* When charging, both battery and charger should be minimum 10cm away from the wall, or under a
condition of ventilation for cooling. Place nothing around the charger, while in use!
Procedure for charging
Please charge the bike battery according to the following procedure:
7.1 The battery can be charged by the AC, the switch is not necessary to be turned on.
7.2 Insert the charger output plug into the battery securely and then, plug the main cable of the charger
into a reachable AC outlet;
7.3 When charging, the LED on the charger will become red, showing the charging is on. When it becomes
green, you can finish charging the battery.
7.4 To finish charging, you must disconnect the charger input plug first from the AC outlet, and after that,
disconnect the charger output plug from the battery pack. Finally, close the cover on the charging socket
of the battery pack and check the socket, is covered.

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8. Using and maintaining the electric motor
8.1 Our intelligent e-bikes are programmed to start with the electric assistance after rotation of the chain
wheel.
8.2 Do not use the bike in flood waters or thunderstorm. Do not immerse the electric parts in water.
Otherwise, the electric components may be damaged.
8.3 Avoid any impact towards the motor, otherwise, the casting alloy aluminum cover and body may
break.
8.4 Make regular checks on the screws on both sides of the motor; fasten them even if they are just a
little bit loose.
8.5 It is necessary to check the cable connection to the motor.
9.Maintaining the controller
For our electric bikes the controller is usually equipped inside the battery pack holder.
It is very important to take care of this electronic component, according to the following guideline:
9.1 Pay attention to protect from ingress of water and immersion in water, which may damage the
controller.
Note: If you think water may have got into the control box, please switch off the power immediately and
pedal without electric assistance. You can pedal with electric assistance as soon as the controller has dried
out.
9.2 Pay attention to protect from any strong shaking and punching, which may damage this controller
9.3 The controller should be used in normal working temperature range from -15°C to +40°C
Warning: Do not open the controller box. Any attempt to open the controller box, modify
or adjust the controller will void the warranty. Please ask your local dealer or authorized service specialist
to repair your bike.
10. Simple trouble shooting
The information below is for purpose of explanation, not as a recommendation for user to carry out repair.
Any remedy outlined must be carried out by a competent person who is aware of the safety issues and
sufficiently familiar with electrical maintenance.
Trouble Description
Possible Causes
Trouble shooting
After the main battery
switched on, the motor
does not generate
assistance when
pedaling.
1)the motor cable (waterproof
connection joint) is loose; 2) brake
lever did not return well, which keeps
the switch in “power off” position; 3)
battery fuse is broken; 4) the speed
First of all, please check the battery if it is
empty. If yes, charge the battery immediately.
1) check if the connection is securely fixed. If
loose, joint them tightly. 2) make the brake
lever come back to its normal position with

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sensor
is too far away from the magnetic
ring on the B.B. axle; 5) the
connection between the sensor and
the controller is loosen or not
connected well.
care, without braking; 3) open the battery
pack top, and check if the fuse is broken. If
yes, please visit your vendor or authorized
service for installing a new fuse; 4) adjusting
the distance between the magnetic ring and
the sensor, to make sure the distance is
within 3mm; 5) fix tight the connection
between the sensor and the controller.
The distance per charge
becomes short (Note:
performance of the bike
battery is directly
related to weight of the
rider and any
baggage/load / wind /
road / constant
braking ).
1) charging time is not enough; 2) the
environment temperature is so low
that it affects the battery working. 3)
frequently going uphill, or riding with
head wind, or on poor road
condition, 4) the tyres have low
pressure (to be inflated); 5)
frequently braking and starting. 6)
battery has been stored without
using for quite a long time.
1) please charge the battery according the
instruction (chapter 7.3); 2) in winter or
under 0°C, you’d better store the battery
inside the house; 3) it will be normal if the
riding conditions are improved as regular; 4)
pump the tyres and ensure tyres are fully
inflated to 45psi for your bike; 5) it becomes
normal when the riding situation will be
better. No worry about such a trouble; 6)
make regular charging according to this
instruction manual (refer to Chapter 6.3) If
the above has no effect, please contact your
vendor or authorized service.
After plugging the
power outlet, no charger
indicator LCDis lit.
1) trouble from the power outlet;
2) poor contact between charger
input plug and power outlet;
3) the temperature is too low.
1) check and repair the power outlet.
2) check and insert the power outlet tightly.
3) charge it in house.
If the above has no effect, please contact
your vendor or authorized service
After charging over 4-5
hours, the charger
indicator LCD is still red,
while the battery is still
above not full (Note: it is
very important to charge
your bike strictly
according to this
instruction stated in
Chapter 7, to avoid any
trouble and damage
occurred to your bike.
1) environment temperature is 40°C
and above.
2) environment temperature is under
0°C.
3) failed to charge bike after riding,
resulting in over discharge.
4) the output voltage is too low to
charge the battery.
1) charge the battery in an area under 40°C,
or according to this instruction chapter 7;
2). charge the battery inside the house, or
according to this instruction chapter 7;
3) please well maintain the battery according
to the Chapter 6.3 to avoid natural
over-discharge;
4) no charging when the power supply is
lower than 100V.
If the above has no effect, please contact
your vendor or authorized service.
There is no speed/KM
show on the LCD
The magnetic ball point on the wheel
spoke is in too far away distance from
the wheel speed sensor (fixed to
frame chain stay or front fork), which
make the sensor cannot get any
signals of the revolving wheel.
Check the distance between the magnetic ball
point and the wheel speed sensor, and make
sure the distance should within 5mm.

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11. Diagram and specification
We reserve the right, without further notice, makes modifications to the product. For further advice,
please contact your vendor.
12. Main technical specification sheet
Please find model name of your bike below:
Model
Remark (for reference)
E-3400RM
E-3400RM
Here is some of the general technical Data for these electric bikes:
Maximum Speed with Electric Assistance:
25km/h ±5%
Distance per full charge:
36V: 80~90km (total loading ≦75kgs)
Weight ebike:
23Kg
Type of tires:
All terrain
Tire size:
27,5 x 2.10
Suspension:
Front suspension
User size:
165 –190 cm

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Type of brakes:
Mechanic disk
Over Current Protection Value:
15±1A (Under 36V)
Under Voltage Protection Value:
31.5V ±0.5V (Under 36V)
Please find the crossed technical data regarding the e-bike motor below:
Motor Type:
Brushless with Starry Gears_ with Hall
Maximum Riding Noise:
<70db
Rated power:
200W
Maximum output power:
250W
Rated voltage:
36V
Please find the crossed technical data battery and charger below:
Battery Type:
Lithium
Voltage:
36V
Capacity:
13Ah
Safety warnings
Disposal of electrical-electronic devices:
this symbol indicates that the product must not be disposed of as unselected waste but
must be sent to separate collection facilities for recovery and correct recycling, supporting
the disposal of materials and helping to prevent potential negative consequences for the
environment and health general.
The WEEE marking must appear on all electrical and electronic equipment placed on the
EU market.
For all additional information regarding recycling and disposal, consult your municipality, specific structure or
authorized dealer.
This treatment is applicable to all countries belonging to the European Union.
It is essential to store used batteries in the appropriate space to ensure correct disposal and respect the
environment.

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MODE D’EMPLOI UTILISATEUR POUR VÉLO À
ASSISTANCE ÉLECTRIQUE
E-3400RM
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