MZZKBIKE COMET User manual

E-Bike
The Operating Manual
v1.32

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General Instructions…………………………………………………………..……………….....................2
1.Introduction……………………………………………………………………………………...................3
A.General Safety Instructions…………………………………………………..……………....….........3
B.Safety information for checking the parts of bike…………………………………………....….......3
C.Important points for the first ride…………………………………………….…………….……..........4
2.Safety Information…………………………………………………………….…………………................5
A.General Instruction…………………………………………………………........................................5
B.Important points for safe cycling…………………………………………..........................…............6
C.Safety Information…………………………………………………………..............................…........7
D.Cycling in the rain…………………………………………………………..........................…............7
E.Cycling at night……………………………………………………………..............................….........8
F.Cycling at night………………………………………………………………………....……......….......8
G.Extreme-, Art-, or Competitive cycling………………………………………………………...............9
3.Select the appropriate e-bike………………………………………………………………….................10
A.The crossing height (Frame Height) …………………………………………………………............10
B.The saddle height (Seat Position)……………………………………………..................................10
C.Adjust the handlebar …………………………………………………………......................……......10
D.Distance from brake bar to handlebar……………………………………..........................…….....10
4.Your e-bike (see 3 versions) ……………………………………………..........................……....….....11
A.COMET………….……………………………………….........…………..............................…….....11
B.FALCON.…….……………………………………….......………………..............................…….....11
C.ENCKE..…………………………………………………………….................................……….......11
5.Installation………………………………....................................................................…………..........12
A. Handlebar installation..…………........................................................................…………..........12
B. Front wheel installation……..……......................................................................…………..........12
C. Pedals installation…………...............................................................................…………..........13
D. Seat posts installation…………........................................................................…………...........14
6.Battery………………………………………….......................................................................…….....15
A. The activation of the electrical system….......................................................................…….....15
B.Install and remove the battery...…......................................................................…….................16
C.Battery charging...….......................................................................…….....................................17
D. Battery life...….......................................................................…….............................................17
E. Battery safety tips..….......................................................................……..................................18
7.Display……………………………………..................................................................…………..........19
A. Functions and Display...……………..................................................................…………..........19
B. Operation...……………..................................................................………….............................19
8.Light……....………………………………..................................................................…………..........20
A. Turn on front light……………............................................................................…………..........20
B. Turn on back light……..................................................................…………...............................21
9.Folding...……………..................................................................………….......................................21
10.Technical information gears….………………………………………………….............………..........21
A.Gears fixing method………………………………………………………........................………......21
11.Technical information base pulley…………………………………………………....…………...…....23
12.Wheels and hose………………………………….................................................……...………......23
A.Wheel inflation pressure…………………………………………..................…………...…...…......23
13.Fall with the e-bike…………………..............................................………………....…………….....23
14.Over loading……………………….......................................................……………....…………......23
15.Legal responsibility…………………………………………………………...........................……......24
16.Guarantee…………………………………………………………………………………...………........24
17.Maintenance specifications……....………………………….......................................................….25
Content
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Important Information:
The manual contains all the important information for a safe trip. Please read the complete operating manual
before the first ride.
If you have any questions or uncertainties, please contact a dealer. The operating manual has been carefully
checked. Nevertheless, we hope you can understand that might have several minor mistakes in it.

Like any sport, there is also an e-bike risk of injury and damage. If you opt for an e-bike, you
take the risk. Therefore, you must acquire and execute all safety rules. Using the e-bike proper-
ly can reduce the risk of injury.
Read all warnings and instructions in this operating manual carefully before using the e-bike.
This manual is an integral part of your e-bike. Always keep the operating manual close to your
e-bikes so that it is available at all times. If you give your e-bike to a third party, be sure to
include this manual.
Definition of concepts and symbols
The purpose of security symbols is to draw your attention to potential dangers. The security
symbols and their explanation require your full attention. Security symbols alone do not
prevent dangers. Failure to follow a safety notice can result in injury to your own or another
person. Therefore, always follow the safety precautions to avoid the risk of fire, electric shock
and injury.
Observe all instructions marked with signal words and symbols with the following meanings:
DANGER
The signal word indicates a hazard with a high risk grade, if not avoided, results in death or a
serious injury.
WARNING
The signal word indicates a hazard with a medium risk grade which, if not avoided, can result
in death or a serious injury.
CAUTION
The signal word indicates a hazard with a low risk grade, if not avoided, can result in a minor
or moderate injury.
The e-bike driver assumes full responsibility for unforeseen and inevitable risks during the
operation.
General instruction
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Important Information:
The manual contains all the important information for a safe trip. Please read the complete operating manual
before the first ride.
If you have any questions or uncertainties, please contact a dealer. The operating manual has been carefully
checked. Nevertheless, we hope you can understand that might have several minor mistakes in it.

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Read the operating manual carefully before you first drive. Please make sure you understand
every instruction. If you have any questions or uncertainties, please contact your seller.
A. General Safety Instructions
1. Before you leave, please use a suitable bike helmet. Wear and maintain your bike helmet
according to the instructions of the bicycle helmet manufacturer.
2. If you have all the safety equipment, you should learn and follow local laws and rights.
3. Do you know how to fix the gears? If the gears are not properly mounted, they will loosen,
and it can cause damage and death.
4. If you want to use different pedals, please learn how to use them. Special pedals require
special techniques to use.
5. Does your e-bike have shock absorbers? Use your shock absorbers only for the appropri-
ate application.
B. Safety information for checking the parts of bike
Please check your e-bike before driving: nuts, bolts, screws and other parts. Make sure that
all parts are correctly fixed and tightened.
DANGER Proper tightening of nuts, bolts, screws and other parts is very important. If
there is too little or too much torque, the parts will not be properly fixed and will be damaged.
Make sure there are no loose parts. Especially check the gear before you ride, make sure it's
tightened.
Wheels and gears: Make sure the wheels have the correct wheel pressure, place one hand
on the saddle, the other hand on the control unit, then push the whole weight of the body onto
the e-bike, then check the changes of the wheels. For flat wheels, please fill the wheels with
compressed air. Is the shape of the wheels normal? Turn each wheel, and
look for dents or damage. Replace the damaged wheel.
Must the rims be repaired? Keep the rims clean. If the wheel wobbles too much or the brake
does not work properly, these parts must be serviced or replaced.
WARNING Brake pads can only work effectively when the wheels are working properly.
The adjustment of the wheels requires special tools and experience. You need professional
knowledge, experience and tools. Are the rims clean and intact?
1. Introduction
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Check that the brake pads are correctly positioned when you apply the brake. Check
whether the brake pads have reached their wear limit or not.
DANGER E-bikes are subject to wear. Check whether wearing limits are visible. When
you continue using the e-bikes with worn parts, this can cause injury or fall down.
Brake: Check whether the brake is working properly. Pull the brake lever for testing. If all
brake lines firmly fixed? If you use a "V-Brake", check the brake pads to make sure that
they are in contact with the rim. Is the way of the brake lever still acceptable?
Quick clamp: Install the front and rear wheels quickly and safely.
Seatpost: If your seatpost has a quick clamp, make sure that it is firmly fixed.
Adjustment of handlebar and seat height: The saddle and handlebar should be aligned.
Handlebar: Make sure that the handlebars are firmly fixed. If you have any questions, please
contact the seller.
DANGER Loose parts can lead to accidents.
Important safety precautions:
Please read the important information about the e-bike and the service life.
C. Important points for the first ride
If you are wearing a helmet on your first ride, be sure to select a place where does not have
too many vehicles and pedestrians. Then practice with your e-bike.
Get familiar with the brakes. First brake slowly, so the wheels can not be blocked.
If your E-Bike has racing bike pedals or normal pedals, familiarize yourself with the use. If your
e-bike has shock absorbers, please familiarize yourself with it. How does the shock absorber
react when the driver brakes or changes his weight?
Practice with the gearshift. Please practice how the e-bike reacts or accelerates when you
have entered a certain gear.
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2. Safety Information
A. General Instruction
DANGER You need a safe equipment. Keep the legal regulations and you can ride only
where it’s allowed (e.g. the bike paths in the city). Only allow the authorized people to drive the
e-bike (concern e.g. children). Please wear helmets at any time.
1. Always wear a bike helmet according to current standard.
Use and maintenance of your helmet: Always follow the manufacturer’s
instructions.
If you wear suitable helmet, then the probability of serious head injuries
will be reduced.
DANGER Not wearing a helmet can lead to serious or fatal injuries.
2. Please check your helmet before each trip.
3. Know your e-bike, e.g. brakes, pedals and gearlever.
4. To be careful, do not let your body come into sharp objects such as bike chains, bike pedals
or wheels.
5. Necessary equipment:
Bike shoes: It is important to wear a pair of durable and light shoes. However they are light,
but light shoes with stable soles, which distribute the pedals on the whole foot. You should
know that bike shoes with clicks for a tight binding better than conventional shoes.
Jackets: Special advantages are provided by jackets, such as breathable, at the same time
wind- and waterproof. A windproof jacket is essential on a long trip.
However, a low-cost material such as rubber coated nylon impairs the natural breathing of the
body.
Shirts: Functional shirts are easy to be washed and dry quickly. This helps in the principle of
“Take a little with you and wash on the road”, which should be remembered by us when you on
bike trips. And those who do not like the sporty look of functional clothing: more and more
collections can hardly be distinguished from everyday clothes.
Trousers: Even trousers should not restrict the movement and be comfortable. With a zip
around the knees, long trousers can quickly be converted into shorts. Padded bike trousers
provide extra comfort on long trips.
Protective glasses help against dirt, dust and insects. Use different tinted lenses. If you are in
strong light use the dark lenses, if the light is weak use bright lenses.
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B. Important points for safe cycling
1. Please follow all local traffic rules.
2. The roads are shared with other people, such as motorcyclists, pedestrians and other
cyclists. Please respect other road crew.
3. Make sure that you can be seen by cornering drivers.
4. Pay attention to the following situation:
6. Do not try to jump with the e-bike. Jump is albatross for the e-bike.
7. The faster you ride, the higher the risk of an accident you face.
• Cyclists should always keep sufficient distance to large vehicles such as trucks and buses. If
there is sufficient space, cyclists are allowed to overtake cars at a traffic light carefully on the
right side of the road. You can park at crossroads in front of the motor vehicles, if there is a
corresponding place which is marked. In the case of trucks and buses are not recommended
do like this. Due to the blind spot the cyclists can’t be seen. Because of the increased seating
position of the truck driver, the cyclists, which stand in front of a truck, are also hardly visible.
Particular dangerous is right-hand bend: buses and trucks usually arrange themselves on the
left side of their roadway in order to be able to drive around the corner with the rear of the
vehicle.
This formation of the road surface seems to be through, in the process of turning, this blind
area is also expanding. This is fatal for the cyclist, who has no room to evade.
For safety reasons cyclists should always stay behind buses or trucks and pay attention to their
turn signals.
• Opening car doors.
• People who come out of the sidewalk.
• Children or pets playing next to the street.
• Sewers, drains, railway rails, gaps, road or sidewalk construction, dirt and other obstacles
can cause a cyclist to fall.
• Do not be distracted.
5. Please drive with the bike on the marked bike paths or some paths which are on the edge of
the road, along the traffic. Pay attention of the correct direction of travel.
6. Stop at the parking signs, traffic lights and the crossings. The cyclists are always injured
more severe than a driver in an accident.
7. Use your hand as a signal when turning.
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8. Do not wear earphones during cycling, as you will not be able to hear the ambulance. In
addition, the cable can wrap around bike parts, after that you will lose control.
9. Children should only be placed on suitable seats or wear the helmet.
10. Don’t bring anything to hinder your cycling.
11. Don’t hang on vehicle such as trams or buses
12. Don’t try to trick. You should be aware of the risks.
13. Don’t frighten any other drivers.
14. Observe vehicle traffic at all times.
15. Under the influence of alcohol or drugs, you must not ride the bike.
16. In the following cases, you should avoid driving: bad weather, poor visibility, dusk or in the
dark or extreme fatigue. Each case will increase the risk of accidents.
C. Safety Information
Children can only take an off-road trip under the supervision of adults.
1. The danger of the off-road trip and the result of the unpredictable environment require a high
degree of attention and special abilities from the driver. First, practice on a flat terrain and learn
to drive safely in the field.
2. Wear suitable protective equipment.
3. Do not drive alone in the remote areas. Share your trip with your friends and tell them when
you will go back home.
4. Always carry your identification, so that in case of an accident and the others will know who
you are. Take some money, food, drink and a mobile phone to be able to make an emergency
call.
5. Don’t frighten animals and the people who are taking their off-road trips. Take consideration
for the others.
6. Prepare your off-road trip well; in case of emergency, because you are on your own.
7. Before you jump from your e-bike, you should be aware of these risks.
Off-road driving
Please observe the local laws and the rules, also observe private property of others. Respect
other people, animals, the environment and the ecosystem.
Don’t leave any rubbish.
D. Cycling in the rain
DANGER Rain makes the ground slippery and increases the likelihood of a traffic accident.
Please adjust your speed.
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E. Cycling at night
Cycling at night is more dangerous than daytime. Drivers and the pedestrians can’t easily see
the cyclists at night. Therefore, children should not drive at dusk or at night.
Adults who want to ride at dusk or at night should have an increased attention.
DANGER Taillight are not a substitute for the necessary lighting at night. Cycling at dawn,
dust, night or other bad viewing conditions are very dangerous if you do not have a sufficient
lighting system and no reflector on your bike. It could result in serious injury. A reflector on the
bike can reflect the light of cars and street lamps. By this way they can see very clearly.
WARNING Check regularly the reflector and its fixing. It must be clean, vertical, unbroken
and properly installed. You can let your dealer to replace the broken reflectors.
DANGER Don not remove the front and rear reflectors from your bike. These parts are
indispensable parts of the e-bikes. Without the reflectors the drivers or pedestrians can’t see
you on the road. It could lead to serious injury even death.
If you are driving in bad viewing conditions, please check the local regulations for night
driving. For this, you should take additional measures:
• In order to meet the requirements of cycling and a sufficient visibility, you should use the
appropriate lighting for your e-bike.
• Wear bright and reflective clothing and equipment, such as reflective vest, reflective tape on
arm and leg and so on.
• Ensure that your clothes don’t block the reflectors or lights.
• Ensure that the install position of the lights is not a hidden danger.
F. Cycling at night
• Drive slowly.
• Avoid the dark areas and traffic jams.
• Pay attention to pavement damage.
• If it’s possible, drive in the route, which you know very well.
Make sure you have an approved lighting when you are driving in public traffic. We assume no
liability for inadequate lighting. Our e-bikes are delivered as offered. Depending on the
location, you may have to retrofit the lighting.
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G. Extreme-, Art-, or Competitive cycling
If you are doing extreme driving with your e-bike, the risk of injury will increase or lead to death.
Not all wheels are suitable for this kind of cycling. Ask your dealer which e-bike is suitable for
the extreme sports.
With an e-bike you can easily reach the speed of a motorcycle. Let a qualified mechanic to
check your bike and equipment to make sure that these work properly. Wear suitable protective
equipment, including an integral helmet, gloves and body protectors. In short, you have
responsible to wear the appropriate equipment and be familiar with the driving conditions too.
K now your limits and always wear a helmet and the appropriate protective equipment. Even
with perfect safety equipment, you might be injured or killed too.
WARNING Bikes and the parts of the bikes have their limits. Don’t exceed this limit. We
recommend the following:
• Take part in a driving training.
• Before you take higher risks increase your abilities.
• Only drive in prescriptive areas.
• Wear integral helmet, body protectors and other protective clothing.
• Overloading is not covered by the warranty or in the defects liability period.
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3. Select the appropriate e-bike
Note: choose a suitable e-bike is an important factor. Adapt your vehicle to your body propor-
tions. Use the experience of a specialist dealer.
WARNING An e-bike that does not fit you can lead to fall down
C. Adjust the handlebar grips
Adjust the gradient of the handlebar so that your hands can comfortably engage the handles.
The tooth must interlock correctly so that the saddle is firmly attached.
D. Distance from brake bar to handlebar
Some bike models have adjustable brake levers. If your hands are small or it is difficult to
operate the brake handles, use a smaller brake lever.
DANGER Make sure that you can operate the brake levers correctly, otherwise it may
cause serious injury or death.
A. The crossing height (Frame Height)
1.The Frame
Evaluate the distance from the ground to your step and then
find the appropriate frame size.
B. The saddle height (Seat Position)
A comfortable saddle is indispensable, if the position of the
saddle is not comfortable enough for you, you should adjust
it accordingly. To adjust the saddle height: If a pedal is down,
the leg should be ideally stretched.
Set the best position to achieve the ideal seat position.
See the follow order to adjustment:
1. Loosen the saddle clamp
2.Lift or lower the saddle
3.The seat cushion should be straight ahead
4.Tighten the saddle clamp with suitable torque
WARNING The saddle clamp can break during travel
when you pull it out too far.
5. Also adjust the gradient and position of the saddle. The
tooth must interlock correctly so that the saddle is firmly
attached.
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4. Your e-bike
Net weight: 60 LB
Max load: 264 LB
Battery capacity: 624 WH (48V 13A)
Charging time: 4 to 6 hours
Max speed: 25 mph
Distance per charge: 32 to 65 miles
Net weight: 64 LB
Max load: 264 LB
Battery capacity: 624 WH (48V 13A)
Charging time: 4 to 6 hours
Max speed: 24 mph
Distance per charge: 32 to 65 miles
Net weight: 60 LB
Max load: 264 LB
Battery capacity: 624 WH (48V 13A)
Charging time: 4 to 6 hours
Max speed: 24 mph
Distance per charge: 32 to 65 miles
A. COMET
B. FALCON
C. ENCKE
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＊Using different capacity battery, the maximum range and charging time will be different, Battery charging
time will be different if you use different charger.

5. Installation
When you receive your e-bike, you need to do some installation before normal using. Due to
limit of transportation, we can just install e-bike with 75% packing, the other parts need to
be installed by yourself. In order to finish installation smoothly and use product safely,
please read the instructions below carefully.
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Handlebar A
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A. Handlebar installation
When you install the handlebars, make sure that the front part is inserted completely. See the
photo with arrows. Do not lose any balls of the bearing. Insert the sleeves flush and tighten
all the set screws.
DANGER
If you are not sure about how to properly fasten the handlebar and/or parts of handlebar, be
sure to ask the seller, otherwise it is possible that it will be incorrectly installed and you may
not safely drivel the e-bike. Incorrect installation may result in injury or death.
B. Front wheel installation
Before doing so, make sure that all the individual parts of the axle are positioned correctly,
especially the rendelnut and the springs.
See the photo. When inserting the front wheel into the fork, make sure that it is correctly seated
in the guides and that the brake disc is correctly seated between the two brake pads. Now you
can insert the axle through the wheel hub. Make sure again that all the small parts of the axle
are seated correctly, see the photo. If you tighten the rendelnut lightly up, make sure one more
time that all parts are seated properly. Now move the quick clamp lever to make the bike fixed.

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C. Pedals installation
There is a left pedal and a right pedal with its own thread. For the purpose of mounting,
simply turn each symmetrical pedal with the thread into the foot crank. Please be careful to
avoid damaging the thread. Then tighten with a suitable tool.
Lock
B
A
1
2
3
Lock
1
DANGER
If you are not sure about how to properly fasten the front wheel, be sure to ask the seller,
otherwise it is possible that it will be incorrectly installed and you may not safely drive the
e-bike. Incorrect installation may result in injury or death.

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D. Seat posts installation
Slide the seat posts into the seat pipe. Make sure that you will not pull the seat posts any
more until the "MAX" mark, otherwise you will not have sufficient attachment. Gently tighten
the rendel screw. Now move the quick clamp lever to make the seat posts fixed. See the
photo.
DANGER
If you are not sure about how to properly fasten the seat posts, be sure to ask the seller,
otherwise it is possible that it will be incorrectly installed and you may not safely drive the
e-bike. Incorrect installation may result in injury.
MAX
Open
Lock
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DANGER
If you are not sure about how to properly fasten the pedals, be sure to ask the seller,other-
wise it is possible that it will be incorrectly installed and you may not safely drive the e-bike.
Incorrect installation may result in injury and/or death.

6.Battery
Battery A Battery B
Battery C
A. The activation of the electrical system
Before cycling, make sure you open the switch on the side of the battery (see below, battery A
doesn't need to switch). Then open the display mounted on the handle bar. Select the assist state
you need and pedal. When you pedal, you'll find that the engine starts. When you use the brakes,
the power of the brakes will stop the motor immediately. By turning off the power, you can also
use the bike (turn off the power or switch to 0) without the help of the battery. The motor is in a
zero resistance state: you can ride freely.
ON
PUSH
OFF
Battery BBattery A Battery C
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Battery A
ON
PUSH
OFF
B.Install and remove the battery
Before removing the battery, open the lock along the battery box and pull the battery down.
When installing the battery, insert the battery into the guide rail, close up and attach to the
controller box, push the battery, and lock the lock (see image below)
Battery B
Battery C
ON
PUSH
OFF
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C.Battery charging
When you connect it to the battery charger socket, the charger shows a green or red light,
whether the battery is charging (red) or is already fully charged (green). Depending on the
model, the battery can be removed from the battery compartment.
D. Battery life
The range of the e-bikes is 40-100 km（25-60 miles）. The battery backup time depends on
the following factors: frequency of use of the battery, load, frequency of braking /start-up,
wheel pressure, etc.).
Bike batteries work like household batteries. When the battery reaches the end of life, you must
buy a new battery from your seller.
If you do not use the battery for more than two months, place the battery in a dry place to protect
the battery components. Ensure that the battery is never fully charged or completely discharged.
CAUTION Do not store a battery that is not fully discharged, as this would result in perma-
nent damage. In winter or during a long term storage process, it is recommended to charge the
battery every half month. Do not forget to turn off the battery. Store your battery at a temperature
better between 15 ° C and 25 ° C（60°F-75°F）.
1. The display indicates when the battery is low and it should be charged immediately. A timely
charge will extend the life of the battery. The battery should be charged for about 3-6 hours. The
life expectancy of the battery is thus extended enormously. Otherwise the life expectancy of the
battery will be shortened and in the worst case the battery will be broken.
2. If you are driving on a slope with electrical support, first you should accelerate gently to keep
the low load and avoid components burning.
3. If the battery is not in use for long period, it should be charged every two months.
4. When charging, please provide sufficient ventilation in the room to avoid the explosion。
5. The battery works best at a temperature of 15 ° C – 40 °C（60°F-100°F）. Outside this
temperature range, the battery will not operate without interference.
6. Avoid the danger of short circuits.
7. The battery is a special battery for e-bikes. Please do not let other consumers to use your
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power source. Therefore you can avoid damaging the battery.
8. Do not use organic solvents to clean the battery jar.
Do not use carbon dioxide fire extinguishers to put out a fire. Fire extinguishers should contain
carbon or something like this.
9. For repairs or maintenance, please use authorized places to avoid environmental pollution.
10. At an ambient temperature above 40 °C (100°F) or under-10 ° C (14°F), the battery life
is shortened. Avoid direct sunlight during summer. In winter, the battery should be stored and
charged in a hall. After the battery is fully charged, it should take two hours longer.
E. Battery safety tips
The battery contains electronic components with chemical elements. For your own safety,
please consider the following provisions:
1. Handle the battery carefully
2. Place all electronic devices out of the reach of children. Do not damage, do not open, protect
from wetness.
3. Do not expose temperatures above 60°C (100°F).
4. The battery should not touch the floor as far as possible.
5. Do not load when you are in absence.
6. Do not sleep near a charging battery.
7. Charging only with an original charger. Do not touch defective batteries.
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