ENGWE-BIKES C20 20 inch Front Suspension Folding Electric Bike User Manual
- June 5, 2024
- ENGWE-BIKES
Table of Contents
ENGWE-BIKES C20 20 inch Front Suspension Folding Electric Bike
IMPORTANCE
When using the electric bicycle, basic safety precautions should always be followed, including the following:
- Read all instructions.
- To protect against fire, electric shock and injury to persons, do not immerse cord, plugs, or e-bike in water or other liquid.
- Close supervision is necessary when the e-bike is used by or near children.
- Unplug from outlet when not in charging and before cleaning.
- Do not operate the e-bike with a damaged cord or plug or after the e-bike malfunctions, or has been damaged in any manner. Take the e-bike to the nearest authorized service bike shop for examination, repair or adjustment.
- The use of accessory attachments not recommended by the e-bike manufacturer may result in fire, electric shock or injury to persons.
- Do waterproof when using on a rainy or snowy day.
- Do not let cord hang over the edge of table or counter, or touch hot surfaces.
- Do not place on or near a hot gas or electric burner, or a heated oven.
- Always attach the plug to the battery first, then plug the cord into the wall outlet.
- Do not use the bike for other than intended use.
- Save these instructions.
Electric Bicycle
-
* Please note that this is a general manual. So, the frame style of the electric bicycle (e-Bike) that you have may differ from the picture shown in this manual.
PLEASE NOTE:
This manual is not intended as a detailed user, service, repair or maintenance
manual. Please seek assistance from a qualified technician for service,
repairs or maintenance.
Read This First: Safety and Compliance with the Law
Congratulations on your purchasing of your new e-bike. Your new e-bike is an
excellent piece of personal transportation equipment that will give you good
service for many years.
Before you start using your e-bike, we want you to be aware of a few important
points. Please read this section carefully..
-
Observe Laws Regarding the Use of Battery-Operated Bicycles
Your e-bike is designed and manufactured to meet safety requirements as a battery-operated bicycle. However, state and local laws governing the use of battery-operated bicycles on public roadways, parks, and other open areas may differ. Please check with your local authority before using your e-bike in public areas. -
Observe Laws Regarding the Use of Bicycles
Note that all laws regarding the use of bicycles in public areas, such as those mandating the use of helmets and the use of infant seats, will automatically apply for e-bikes. Check with your local authority on what restrictions might apply. -
The Lithium-ion Battery of Your e-Bike
Your e-bike is equipped with the latest battery technology. The lithium-ion battery is much lighter than lead- or nickel-based batteries that are being used in some older models. -
Your First Ride
Please be VERY CAREFUL when you are ready to get on your e-bike for the first time because that the e-bike moves significantly faster than a regular bicycle at active power-assisted mode. Take your e-bike to an area with a lot of open space before you start. Do not start pedaling hard as soon as you get on the e-bike (as you normally would so with a regular bicycle), as the e-bike will accelerate under pedal-assist mode and you may be unprepared for the sudden increase in speed. However, after a few times, you will enjoy using the pedal- assisted function.
Assembling Your New e-Bike
If you purchased your e-bike unassembled, please follow these instructions to assemble your e-bike under the guidance of an adult or a qualified technician. Assembly is quite easy as most of the parts are already assembled; you only need to put a few large pieces together to complete the job. You may click to the following link to view the demonstration of assembling the e-Bike: Remarks: The link is subject to change without advance notice. For more information, please refer to this website: www.engwe-bikes.com.
Name of each Part
Check that the Package is Complete and Undamaged
Your e-bike comes in a carton containing the following:
- The main body of the e-bike – consisting of the frame, the rear wheel, the gear and chain, the rear brake, the battery.
- The handlebar subassembly with the battery’s keys – the handlebar subassembly is not really separate, as it is connected to the main body by the brake cables and electrical wires. The handlebar also has the brake levers and gear control already assembled. Additionally, the right handle also has a control for the throttle mode, a battery charge level indicator and the ignition lock.
- The Seat – the seat is attached to its pedestal stem.
- The front wheel
- Front light – the front light is not really separate, as it is connected to the main body by an electrical wire.
- Other parts – One charger, a pair of foot pedals and this manual, they are contained in a separate box.
Assembly – Step 1: Attach the handlebar subassembly
Stand the main body of the e-bike on the kickstand. Stand up and lock the
steering column that is at the front of the main body frame, insert the stem
of the handlebar subassembly into it. Make sure that the fork (that will hold
the front wheel) is pointing forward, and orient the handlebar accordingly.
Insert the stem all the way and tighten from the top using the quick lock.
Assembly – Step 2: Attach the Front Wheel and the Front Light
Make sure that the fork from the steering column is pointing forward. Place
the front light within the fork: fit it to the bolt at the back of the base of
the steering column; attach the supports (one on each side) to the base of the
fork using two small bolts (supplied). After all three points (the dorsal
point and the 2 support points) are properly attached, use the multi-wrench to
tighten.
Assembly – Step 3: Attach the Front Wheel and Adjusting the Front Brak e
Make sure that the fork from the steering column is pointing forward. Remove
the protective bar from the front fork, place the front wheel within the fork
and the brake disc within the brake block, seat the axial stem properly within
the receptacles at the tips of the fork, and tighten the nuts with the multi-
wrench. Make sure that the front wheel moves freely and does not wobble from
side to side. Reposition the wheel and re-tighten if necessary.
Test the brake by lifting the front of the e-bike and setting the wheel in motion (turn it) and apply the brake at the handlebar to stop it. If you could not set the wheel in free motion, or if you could not stop it by applying the brake, you need to re-adjust by increasing or decreasing the clearance. Caution: Do not operate the e-bike until you are satisfied that both the front and rear brakes are operational.
Assembly – Step 4: Installing the Seat and Pedals
Insert the pedestal stem of the seat into the seat column of the main body
frame, use the built-in lever to tighten. Attach a pedal on each side of the
crank, tighten with the multi-wrench. Inflate the tires to proper pressure. At
this point, your e-bike is a completely functional bicycle, although without
any battery operated to function as yet. Check all tightening points to make
sure. Take a short ride. Adjust the height of the handlebar, and the height
and the tilt of the seat, if necessary, for maximum comfort.
Assembly – Step 5: Charging the Battery
Remove the charger from the box, attached the power cord and insert that to
any wall outlet. Insert the plug at the end of the smaller cable into the
charging terminal of the battery and start charging. The charging terminal is
on the side of the battery opposite to a hole on the side of the frame. The
LED on the charger glows RED while charging and glows GREEN when charging is
complete. The battery should be turned OFF while being charged. When the LED
on the charger turns Green, disconnect the charging cord and cover the
charging terminal with the rubber cap. The battery has a series of LEDs as
charge level indicators. There is a similar series of LEDs on the handlebar.
If a battery is installed on the e-bike and turned ON, the LED indicators will
show the charge level of the battery. You are now ready to start using your
e-bike.
Operating Your New e-Bike
Your e-bike is driven by a motor embedded in the hub of the rear wheel. The motor is powered by a battery. The amount of power delivered to the motor, and hence the accelerating force on the e-bike, is controlled by you in a way according to the power-assisted mode you choose. You can configure the e-bike to operate in the pedal-assist-only mode or the full power mode (should check against local laws to ensure full power mode is permitted) where you can also use the hand throttle to deliver power to the motor.
**Handlebar’s Functions
**
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Your First Ride
(Reprinted from the Safety and Compliance with the Law section) Please be VERY CAREFUL when you are ready to get on your e-bike for the first time because the e-bike moves significantly faster than a regular bicycle at active power- assisted mode. Take your e-bike to an area with a lot of open space before you start. Do not start pedaling hard as soon as you get on the e-bike (as you normally would do with a regular bicycle), as the e-bike will accelerate under pedal-assist mode and you may be unprepared for the sudden increase in speed. However, after a few times, you will enjoy using the pedal-assisted function. -
Pedal-Assisted
You must turn on the ignition lock to use the e-bike in pedal-assisted mode. In the pedal-assisted mode, power assist is triggered when you pedal forward, and power assist stops when you stop pedaling. In other words, power assist happens as long as you pedal. You don’t need to pedal hard. All you need is to apply a light force to the pedals continuously to maintain the current flow. When you apply one of the brakes, power assist will automatically stop, allowing the e-bike to slow down and stop. Power assist will turn itself off when the e-bike has reached the maximum speed of 15 mph. -
Hand Throttle Control
In the hand throttle mode, amount of power assist is determined by the throttle switch controlled by your right hand. You control the throttle by twisting it from its resting position, the farther the throttle switch is from its resting position, the more power is delivered to the motor to accelerate the e-bike. When you want to slow down, you simply release the throttle and let it return to its resting position, and simultaneously apply the brakes if necessary. You do not need to pedal the e-bike if you use the hand throttle. However, you can pedal while commanding power assist. If you do pedal to help the movement, you conserve energy and the charge in the battery will last longer. -
Charging Your e-Bike Battery
Your e-bike battery is a lithium-ion battery. Lithium-ion battery requires specially designed chargers. You should never charge your battery with a substitute charger that is not designed for this use. Use of an unsuitable charger to charge a lithium-ion battery will result in overheating, fire or even explosion. If your charger is lost or damaged, contact your dealer to order a replacement. Charge your battery while the e-bike is not in use. You should turn off the ignition lock before you charge it. Do not place either the charger or the battery near flammable substances while charging is taking place. Charging should not be done in the vicinity of infants and small children. It is also prudent to remove valuable objects from the immediate vicinity of the battery while it is being charged. The length of charging time depends on the level of charge the battery still holds. If a battery is completely discharged, it will take 6 hours to be fully recharged. When a battery is fully charged, the LED on the charger will transition from RED to GREEN. At this point, you should disconnect the charger. Do not leave the charger connected to the battery for a very long period of time after charging is complete.(Leaving it connected for overnight charging is OK.) It is normal for the charger and the battery to be slightly hot while charging is on-going. -
aximizing the Riding Range
Many factors affect the rate of use of electrical energy and the riding range.- You should fully charge the battery before a long journey.
- Rough road conditions and hilly terrain will consume more energy.
- Frequent change of speed will consume more energy.
- Carrying more weight on the e-bike will consume more energy.
- Keeping the tires properly inflated and keeping the e-bike clean and well lubricated will save energy.
- Making sure that both wheels move freely when brakes are not applied will save energy. You should check brake adjustments frequently.
- Pedaling as you ride will consume less electrical energy and increase the riding range.
- When the ignition lock is turned off, your e-bike functions as a regular bicycle. If you embark on a very long journey, you might want to turn off the battery for long stretches where the road is level or downhill and pedal the e-bike as a regular bicycle so that you can conserve electrical energy stored in the battery.
Care and Maintenance for Your New e-Bike
You should, in general, take care of your e-bike the way you would with a regular bicycle by keeping it dry, clean and the moving parts well lubricated. You should also avoid parking your e-bike in exposed areas whenever possible. You should check the effectiveness of the brakes before each use.
For your e-Bike, you should also take note of the following:
- Your e-bike is designed for regular country road use for a single person. Using your e-bike for extreme maneuvers, such as extreme off-road use, jumping, or carrying the excessive load will damage the e-bike and could cause serious injury.
- Do not use high-pressure water streams to clean your e-bike, as water might seep inside the motor or the wiring compartment and cause rusting of electrical parts or short circuits.
- Avoid parking your e-bike outside when there is rain or snow. At the end of a trip where there was rain or snow, bring the e-bike inside and use a clean, dry towel to eliminate any wetness.
- Be sure you do not lose both keys. If you lost one key, you should immediately make a copy as a back-up. If you lost both keys, you will be unable to turn on the e-bike.
Special Care for the Battery and the Charger
- Use only the supplied charger to charge your battery. Do not use an unauthorized substitute. If your charger is lost or damaged, contact your dealer to order a replacement.
- Do not open or alter the battery or the battery charger.
- Do not place the battery near fire or corrosive substances. Do not immerse in water or other liquids.
- Avoid subjecting the battery from high temperatures, such as directly under the hot sun, for prolonged periods of time.
- Do not connect (short circuit) the two poles of the battery.
- After much use, your battery’s charge holding capacity will decrease. If you find that your battery does not hold sufficient charge even for short trips, you should contact your dealer to order a replacement. Under normal use, the battery will undergo 1000 charging and discharging cycles.
- If the battery will not be used for an extended period of time, charge it fully and recharge it every 3 months. Store it in a cool place.
- Your e-bike battery is engineered with precision for high capacity and long useful life. We do not recommend that you use it to power other electrical devices. Improper use of the battery will damage the battery
and shorten its useful life and may cause a fire or an explosion.Model:| C20 PRO| C20
---|---|---
Material:| Aluminum Alloy| Aluminum Alloy
Tire Size:| 203.0 inch| 202.4 inch
Motor:
| 250W high-speed brushless
motor
| 250W high-speed brushless
motor
Battery:| 36V 19.2AH| 36V 10AH
Maximum Speed:| 15.5mph(25km/h)| 15.5mph(25km/h)
Typical Range:| 50-62 miles (80-100km)| 37-50 miles (60-80km)
Recharge time:| about 8 hours| about 6 hours
Maximum climbing degree:| 20°| 20°
Instrument:
| Multi-function LCD
instrument
| LED instrument
Brake:
| Dual Mechanical Disc
Brakes
| Dual Mechanical Disc
Brakes
Acceleration type:| Throttle| Throttle
Transmission system:| 7 Gear| 7 Gear
Net Weight:| Approx.48.5lbs(22kg)| Approx.48.5lbs(22kg)
Maximum Load:| 330lbs(150kg)| 330lbs(150kg)
Folding size:| 302613.8in(766635cm)| 302613.8in(766635cm)
Rider Required/Recomanded Height：| 5’2″ – 6’5″(165-195cm)| 5’2″ –
6’5″(165-195cm)
Safety
These safety precautions are provided for your benefit to protect you and
those around you. Please read and follow them carefully to avoid unnecessary
injury, damage to the product, or damage to other property.
Battery
Trouble Shooting
| Failure Phenomena | Causes of Failure | Solutions |
|---|
Can not adjust the speed
Speed is less than 10km/h
| Battery’s voltage is too low
Throttle governing bar is
damaged
Poor contact of the controlling line
Spring failure or being locked
| Fully charge the battery
Replace the throttle governing bar
Replace the spring
e-Bike’s mileage is obviously inadequate after fully charged| Inadequate tire pressure
Failure of charger
The battery cannot be fully charged
Failure of controller
Battery aging or battery damaged
e-Bike has not been well assembled
Too much upgrade road
Strong wind
Bad road
Overweight
Too many braking times
Temperature is too low
| Inflate tire with appropriate air pressure
Repair the charger
Examine and repair the controller
Replace the controller
Replace the battery
Re-adjust the e-Bike
Boost the e-Bike by manpower
Warm the battery above 0℃ (32℉)
Wheel hub stop running after switching on the power| The connection of battery is loosen
Poor contact of controlling line
The connection of wheel hub is loose or damaged
The protective board of the battery is broken
| Re-connect the battery
Replace the connection line
Replace the battery’s protective board with a new one
Can not turn on the e- bike| The Battery is out of power
Battery damaged
| Fully charge the battery
Replace the battery
As one or more causes of failure might lead to the failure phenomenon, you should find out the true cause(s) and then take the appropriate solution(s) to rectify the problem. In case of doubt, please consult a qualified technician for service, repairs or maintenance.
- Company: Shenzhen Big Fish Sports Technology Co., Ltd
- Address: Room 207, Jiangnan Building, Yongxiang Rd, Bantian St, Longgang Dist, Shenzhen, Guangdong, China
- Post Code: 518129
- Email:service@engwe-bikes.com
- Tel: +86 134 1744 2586（CN）
- The manufacturer reserves the right to change the features of the product without prior notice.