Retrospec Jax User manual

USER’S MANUAL
-500W-
Jax

User’s Manual Electric Bike
Congratulations on your purchase of this Retrospec electric bike. It has been carefully
designed and manufactured according to the latest international quality standards.
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. Keep this manual for future reference. This user’s
instruction manual includes two sections:
SECTION I - Mechanical Operation, and SECTION II - the Electric Operation.
These instructions apply to electric bike models with following equipment:
Section I: Mechanical Components Operation
• Disc Brakes
Section II: Electrical Components Operation
• Battery-pack behind the seat tube
• Rear hub motor
• Controller integrated to the battery-pack
• Handlebar-mounted Display Panel operations.
Warranty: Should any original component prove defective in terms of workmanship
within its warranty period, we will replace it. Warranty period for Retrospec electric
bikes is as follows:
Electrical Components excluding Battery: 2 years with proper maintenance
Battery: 1 year
Frame and Fork: 1 year
All other components: 6 months
This warranty does not include labor 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 eects of normal wear, nor 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, competition use, stunt riding, ramp jumping and leaping or similar
activities. Claims must be submitted through your retailer. Your statutory rights are not
aected. The company reserves the right to change any specication without notice.
All information and specications within this manual are correct at time of printing.
1. Tire/Tube
2. Rim
3. Spoke
4. Disc brake
5. Fork
6. Mudguard
7. Front light
8. Head tube
9. Stem
10. Display Panel
Fig. 1 Electric Bicycle
Name of Pedal Electric
Assistance Bicycle Components
1 2
11. Saddle
12. Seat Post
13. Frame
14. Pedals
15. Chainwheel/Crankset
16. Chain
17. Rear Light
18. Kickstand
19. Hub Motor
20. Rear Carrier
21. Battery

User’s Manual Electric Bike
Section I - Mechanical Components Operation, Maintenance, & Safety
Contents:
1. Conditions for Riding This Electric bicycle
2. Safe Cycling and Safety Tips
3. Routine Maintenance Check and Lubrication
4. Assembly Instructions
1. Riding Conditions
This pedal electric assistance bicycle is designed for riding on road, or paved surfaces
where the tires have rm contact with the riding surface. This e-bike must be properly
maintained according to the instructions found within this manual.
The maximum weight of the rider and load is 220lbs (100kgs).
WARNING! The owner/rider assumes the risk for personal injury, damage,
or losses. If the conditions in this manual are breached, the warranty will be
void automatically.
2. Safe Cycling and Safety Tips
2.1 Pre-Ride Check Points
Before you ride your pedal electric assistance bicycle always make sure it is in a safe
operating condition. Particularly check that your:
• Nuts, bolts, quick-release and parts are fastened tight, not worn, or damaged.
• Riding position is comfortable and unencumbered.
• Brakes are operating eectively.
• 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.
• Tires are in good condition and inated to correct pressure (tire pressure in on tire
sidewall - do not exceed max tire pressure).
• Pedals are securely tightened to pedal cranks.
• All reectors are in position and secure.
After you have made any adjustment to your electric bicycle, check that all nuts and
bolts are securely tightened and cables are free from kinks and xed securely to the
electric bicycles frame. Every six months, your electric 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 good working order.
2.2 What Never To Do When Riding
• NEVER ride without wearing an approved helmet, which must meet USA/European
(CPSC/EN) standards. Always comply with the local laws and ordinances.
• NEVER ride on the same side of the road as oncoming trac.
• NEVER carry a passenger, this bicycle is designed for a single rider only.
• NEVER hang item(s) over the handlebars, this could interfere with steering or
catch in the front wheel causing a crash.
• NEVER hold on to another motor vehicle or bicycle.
• NEVER ride too close to another vehicle - keep your distance and awareness.
WARNING! Wet Weather Riding: Your bike’s brakes do not work as well
under wet or icy conditions as they do under dry conditions.The braking distance in
wet weather will be longer than that in dry conditions. Take special precautions in wet
weather to assure safe stopping. Ride slower than normal and apply your brakes well in
advance of anticipated stops.
WARNING! Night Riding: Do not ride at night. If you have to be on your e-bike at
night or in low-light conditions, always comply with laws and regulations (local and
otherwise) for bicycle lighting. Use approved headlights (white), taillights (red) properly
axed to your e-bike in addition to all-around reectors. For additional safety, wear
light colored clothing with reective stripes, or safety yellow or safety orange clothing.
Check that the reectors are rmly secured in the correct position and clean and not
obscured. Damaged reectors must be replaced immediately.
3. Routine Maintenance Check and Lubrication
WARNING! As with all mechanical components, your bicycle is subjected to
wear and stress. Dierent materials and components may react to wear or fatigue in
dierent ways. If the design life of a component has been exceeded it may suddenly
fail, possibly causing injuries to the rider. Any types of cracks, scratches, or change
of coloring in highly stressed areas indicate that the life of the component has been
reached and it should be replaced immediately. Always inspect your bicycle before
every ride.
WARNING! Use only genuine replacement parts, particularly for safety-critical
components, installed by a professional bicycle mechanic. To keep your electric
bicycle functioning well, the following routine maintenance lubrication is necessary.
3 4

User’s Manual Electric Bike
Half-Yearly: Remove, clean, and lubricate chain and all cables.
Check and replace as required.
Weekly (or as needed): Wash bicycle with warm soapy water. Dry with a soft, non-
abrasive cloth. Do not use strong chemicals or abrasives. Do not use a high-pressure
washer. Inspect your bicycle while cleaning.
WARNING! 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.
4. Assembly Instruction
This bikes comes assembled- no tools required for assembly. We strongly recommend
you take this bike to a professional bicycle shop for adjustment and education on its
operation and maintenance.
Unfolding Your Bike And Connecting The Frame
1. Your bike comes folded. Unfold the frame and swing the two hinged halves until they
almost come together - this may require extra eort as the parts are new.
2. You will need to pull up on the quick release latch (Fig. 3) to allow the two frame
halves to mate against one another.
3. Once the halves are together, release the quick release latch so it locks (Fig.4).
4. Swing the quick release latch around so it ts fully in the slot in the hinge on the
front half of the frame. Make sure the steel and nylon washers are on the outside of the
hinge and against the lever body (Fig.5)
5. Close the quick release lever to complete attaching the two halves of the frame
(Fig.6 & 7). The lever should require some eort to close. If the lever is too dicult to
close, or closes with little eort, tighten or loosen the nut on the end of the latch to
adjust the lever tension (Fig.5).
1- Tires
Check for cuts and wear. Maintain
pressure indicated on tires sidewall for
maximum eciency and safety.
2/3- Wheels
Check that axles are sealed, spin
smoothly, and are secured properly.
Check rims are straight. Check for
loose or damaged spokes.
4-Brakes
Lightly oil exposed cables monthly.
Check the rotors are straight and
secured to the hub. Make sure there
are no oils on the rotors. Maintain and
replace brake caliper pads when worn,
brake cables when frayed.
Electrical Parts: #10, 19, & 21. Refer to
Section II of this manual.
18-Kickstand
Check the attaching bolt is tight,
and the kickstand is secure in its
stowed position for riding. Replace if
necessary.
9- Headset/Stem Assembly
Remove, clean, and regrease yearly,
replace parts, bearings as if worn, or
as necessary.
16-Chain
Check and lightly lubricate weekly.
Clean and lubricate half-yearly
(minimum).
7/17- Front/Rear Light
Check the lights are in good working
condition, no cracks in the lens,
replace if necessary.
15- Cranks
Check weekly. Remove, clean and
lubricate half-yearly.
5- Fork
Dealer adjustment only
6-Mudguards
Check they are securely tight,
clean, and not damaged. Replace if
necessary.
14-Pedals
Lightly oil bearings monthly.
11-Saddle and Quick-Release
Check the quick release is tight and
the saddle does not move, ensure
the saddle and quick-release are
undamaged, replace if necessary.
20-Rear Carrier
Check the paint for cracks which could
indicate material fractures.
5 6
34
6
5Tension Adjust Nut
7

Connecting The Handlebar To The Stem
1. Swing the handlebar assembly into place by rotating upwards (Fig.8).
2. Once the handlebars are in the upright position, lock into place by pressing the lever
to the handlebar mast (Fig.9).
Unfold Pedals
1. Unfold the pedals by simply applying pressure to pull them in the riding position.
You will hear a click when they lock into position. (Fig. 10 & 11)
Check Pedal Tightness
1. Pedals need to be checked for tightness.
2. Use the 15mm portion of the included multi-wrench, your own 15mm open end
wrench, or adjustable wrench.
3. The right side pedal tightens clockwise (Fig.12). The left side pedal tightens
counterclockwise (Fig.13). The pedals need to be tightened with a considerable amount
of force so that they do not come lose. Pedal side is determined when you sit on bike.
Adjust Seat Height
1. To adjust the seat height, pull the quick release lever attached to the top of the seat
tube outwards and adjust the seat to your desired height.
2. Once you have adjusted the seat post to your desired height, lock it in place by
closing the quick release lever against the clamp (Fig.14). The lever should require
some force to close. If it closes too easily and does not hold or if the eort to close the
clamp is too great, adjust the clamping force by loosening or tightening the adjusting
nut on the side opposite the lever.
IMPORTANT! Your seat post is extra-long to t a variety of rider sizes to the compact,
folding frame design. Check the seat post closely. It has upper limit line marked on rear
of seatpost (how low your seat can go), and lower limit line (how high your seat can go)
marked on the front of the seatpost.
Lower Limit Line: Never adjust the seat height so that the limit line at the lower end of
the seat post is showing outside of the frame (Fig.15).
Upper Limit Line: Always adjust the seat height so that the limit line at the upper end
of the seat post is showing outside of the frame (Fig.16).
WARNING! Using the bike with the minimum insertion line on the lower portion of
the seat post showing above the frame could result in a failure of the seat post and/or
the frame causing a loss of control with potential injury to rider. Such failures are not
covered by warranty as it is improper use of the product.
Check Tire Ination & Installation
1. Locate the tire manufacturer’s recommended ination pressure found on the tire
sidewall (listed as “PSI”).
2. Using a hand or oor pump with a gauge, begin to inate the tire to half its
recommended ination pressure and check to see that the tire is properly seated on
the rim. Be sure to inspect both sides of
the tire for proper t.
3. If the tire is seated unevenly or bulges out along the rim, let some air out of the tire
and reposition the tire by hand so that it sits evenly on the rim.
4 Continue to inate the tire to the manufacturer’s recommended pressure.
5. Do not exceed the recommended pressure as this will cause an unsafe condition
potentially causing the tire to unexpectedly explode.
6. Do not use a compressed air device to inate your tires as the rapid ination of the
tire can cause it to blow o the rim.
7. Tires and tubes are not warranted against damage caused by over-ination or
punctures from road hazards.
7 8
89
10
12
11
13
15 16
14
Lower Limit Line Upper Limit Line

User’s Manual Electric Bike
Check Handlebar Stem Alignment
1. Sit on your bike - check to make sure the handlebar stem and fork are in-line with
one another.
2. If it is all good (Fig.20), you are done. Otherwise, do the following:
A– Unfold the handlebar (Fig.17).
B- With 5mm hex wrench loosen the Compression Cap – the top center bolt in the
stem (Fig.18).
C– With the same 5mm hex wrench, loosen the two Stem Binder Bolts on side of stem
these hold the stem to the fork. Loosen just enough so you can move/adjust the stem
and center it in line with the front tire (Fig.19).
D– Line up the handlebar/stem with the front tire (Fig.20).
E– Reverse the process:
1. Tighten the top center bolt in the Compression cap of the stem (Fig.18).
2. Tighten the two Stem Binder Bolts on the side of the stem (Fig.19).
Adjust Handlebar Height
1. To adjust the handlebar height, pull the quick release lever attached to the top of the
stem mast outwards and adjust the handlebar to your desired height.
2. Once you have adjusted the handlebar to your desired height, lock it in place by
closing the quick release lever against the clamp (Fig.21). The lever should require
some force to close. If it closes too easily and does not hold the seat post in place, or
if the eort to close the clamp is too great, adjust the clamping force by loosening or
tightening the adjusting nut on the side opposite the lever.
IMPORTANT! Never adjust the handlebar height so that the limit
line at the lower end of the seat post is showing outside of the
frame (Fig.21).
Before Your First Ride
We strongly recommend you take your bike to a professional bike
shop and have them check your work and ne tune the bike to
ensure your bike is safe to ride.
Serial Number
It is important that you locate and record the serial number
of your bicycle in case of a recall or if the bicycle is stolen.
The serial number can be found under the crank bottom
bracket stamped into the frame (Fig.22).
Section II- Electrical Components Operation, Maintenance, & Safety
The e-bike in this manual features “Start Aid”. This electric assistance system will help
riders save their energy when starting the bike rolling.
How Start Aid Works: When pressing the Start Aid button, the bike can be started at a
speed of ~3.5MPH (6km/h). When the bike starts moving forward, start to pedal and
release the “Start Aid” button.
Note: You can pedal one crank revolution to start the motor without using the “Start
Aid “button.
Contents:
1. Important System Caution notices
2. Operation
3. Battery Installation & Usage
4. LCD Function Indicators
5. Using and Maintaining the Battery
6. Using and Maintaining the Battery Charger
7. Using and Maintaining the Electric Hub Motor
8. Maintaining the Controller
9. Maintaining the Power-o Control of the Brake Lever
10. Simple Troubleshooting
11. Electrical Circuit Diagram and Specications
12. Main Technical Specication Sheet
1. Important Safety Precautions
• We strongly advise wearing an approved helmet which meets local safety
standards.
• Obey local trac rules when riding on public roads.
• Be aware of trac conditions.
• The rider must be over 14 years old.
• Have your bike serviced only by authorized bicycle shops.
• Regular servicing will ensure a better performance and a safe riding experience.
• Do not exceed more than 220lbs (100kgs) on bicycle, including the rider and cargo.
• Never have more than one rider on the bicycle.
• Follow the regular maintenance schedule in this owner’s manual.
• Do not open or attempt maintenance on any electrical components yourself.
Contact your local bicycle specialist for qualied service when needed.
• Never jump, race, perform stunts, or abuse your bicycle.
• Never ride under the inuence of intoxicating drugs or alcohol.
• Do not ride at night. If riding at night, low-light, or poor weather conditions is
unavoidable, we strongly recommend using front & rear lights, reectors, and
bright, safety clothing.
• Wash with mild soapy water. Dry immediately with a soft, non-abrasive cloth.
• Do not use strong chemicals or abrasives.
WARNING! Do not direct water spray at hubs, bearings, and electrical components
and NEVER use a high-pressure washer - these actions may damage electrical
components and bearings (bottom bracket, hubs, headset).
9 10
17
Lift Button
Pull Over
20
21
18
Compression
Cap
F
J
1
2
3
4
5
6
7
8
9
1
2
3
19
Stem Binder
Bolts
22

User’s Manual Electric Bike
From the initial 12 o’clock position (battery and carrier are unlocked), insert the key
into the key slot, press and turn it clockwise to 6 o’clock position (battery now locked
into the housing). Reverse steps to unlock.
Battery Charging
You can charge your battery while installed on the bike or
removed for remote charging. If your bike is near an AC outlet,
you can charge it with your bike’s battery still installed. The
charging port is covered by a plastic cap (Fig 4.3).
Alternatively, you can remove the battery for charging. This
feature is useful in small areas where the bike will not t or AC
power supply is not near the bike. Following the steps above,
make sure the battery is unlocked before removal. Make sure
the switch is o and remember to keep your key secure!
WARNING! Use only the charger provided with the electric bike, otherwise damage
could occur to your battery and void the warranty. When charging, both battery and
charger should be minimum 4 in (10cm) away from the wall, and in a cool, ventilated
environment. Place nothing around the charger while in use!
4. LCD and Function
Our KD58C Display Panel provides control of functions to t the users needs.
The Display Panel indicates the following:
• Smart Battery
• Power Assistance-Level
• Speed indication (current speed, max speed, and average speed)
• Motor-Output
• Trip Time
• Trip Distance and Total Distance
• Push-Assistance Function
• Error Code Indicator
Button Denition
The KD58C Display Panel has 3 buttons (M, +, -) which represent the functions
M/MODE, +/UP, & -/DOWN.
2. Operation
Your new electric assistance bicycle is a revolutionary means of transport, using
an aluminum frame, Li-Ion battery, a super high eciency electric hub motor, and
controller with electric pedal assistance system, to support normal pedaling. These
components 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.
2.1 Always check your bicycle before riding.
2.1.1 Before riding, check that the tires are fully inated as indicated on the tire
sidewall.
Remember, performance of the bike and battery range is directly related to the weight
of the rider and baggage/load, together with the stored energy in the battery. Battery
range/performance can vary signicantly based on terrain, load, & weather conditions.
2.1.2 Charge overnight, prior to riding the next day.
2.1.3 Clean and apply chain lube periodically as needed. With a soft rag or towel, wipe
o excess lube. Clean and lubricate half-yearly (minimum).
3. Battery Installation & Usage.
Retrospec Jax Rev 500W & 750W have the battery positioned on the rear of the
frame seat tube (Fig 2).
The battery box bottom is xed on bottom of the frame seat tube by screws (Fig 2.1).
Then the battery case is locked by the key - see the operation details below.
11 12
Fig 2.
Fig 2.1
Fig 3.
1. Insert and slide the Battery Pack vertically into the Battery/Controller Housing with
the indicator facing up (Fig. 3), then slowly and rmly push it into place for a snug t.
2. Make sure the Battery Pack is rmly pushed into the Battery/Controller Housing and
the connector is securely inserted inside the controller box.
Fig 4.2
Fig 4.3
NOTE: Battery Lock (Fig 4.2)

User’s Manual Electric Bike
13 14
General Operation
Switching your E-Bike On/O
Switching ON: Hold the MODE button for 2s.
Switching OFF: Hold the MODE button for 2s again.
In the OFF position system current “leakage” is less than 1 uA.
When parking your bike for more than 10 minutes, the system switches o
automatically.
Display Interface
After switching on the E-Bike system, the display shows Running Speed. Once you’re
riding, to change the displayed information, press MODE to cycle through the functions
as below:
Running Speed (Km/h) → Trip Distance (Km) →Trip Time (Hour) → Average Speed (Km/h)
→ Max Speed (Km/h). Each function will display for 2 seconds and then automatically
returns to the Running Speed interface. When stopped and speed reads 0 mph (km/h),
Total Distance will be added to the circulation interface.
The circulation interface of the condition that the speed is 0 mph (km/h)
Switching Smart-Aid Push-Assistance Mode On/O
To access the push-assistance mode, hold the DOWN button for 2s, the E-Bike will go
on at a uniform speed of 6 Km/h, “P” is shown on the screen at the same time. The
push-assistance function switches o as soon as you release the DOWN button.
Push Assistance Mode
Start-Aid Push-Assistance function may only be used when pushing the E-Bike.
Danger of injury when the wheels of the E-Bike do not have ground contact while
using the push-assistance function.
Assistance Level Selection
Assistance levels indicate the output power of the motor. The default value is level “1”.
The default power ranges from level “0” to level “5”. Output power is zero on Level “0”.
Level “1” is the minimum power. Level “5” is the maximum power.
Assistance Level 1
Power Indicator
The output power of the motor will be indicated by the display - below:
Motor Power Indicator Interface
Error code Indication
If there are errors about the electronic control system, the ERR/error code will appear
automatically.
Error Code Indication
Contact your Dealer or Customer Service when an error code appears on the
Display Panel.
Display Panel Functions and Indicators

User’s Manual Electric Bike
15 16
5. Using and Maintaining the Battery
5.1 Advantages of Lithium Batteries
Your electric bicycle is equipped with high-quality lithium batteries which are a green
energy source with reduced environmental impact and have the additional
advantages of:
• Charging without “memory” eect
• Large energy capacity and output, small volume, light weight, suitable for high
power
• Long life
• Wide temperature working range of: 14F-104F (-10°C to +40°C)
5.2 Using and Maintaining the Battery
For long battery life and to protect it from damage, use and maintain it following the
guideline below:
• While riding, periodically check your battery charge level on your
handlebar mounted Display Panel. If you notice the battery charge
is 5% or less, charge immediately!
• Make sure you have a full charge before taking a long trip.
• To check the battery charge on the battery itself: Press the button
on the end of the battery case.
• All 5 lights all blue color - battery is fully charged.
• If, for example, only 2 lights, charge promptly. (Fig. 5.2)
• If the bike is ridden infrequently, or stored long term, it must be
fully charged every 2-3 months.
WARNING! As mentioned above, long term storage, without periodic charging
may reduce battery life.
• Never use any metals to directly connect the two poles of the battery, otherwise,
the battery will be damaged due to short circuit, and warranty voided.
• Never put the battery near to re or heat source.
• Never strongly shake, slam/drop, or throw the battery - damage is likely.
• When the battery pack is removed from the bike, always keep it out of reach of
children to avoid and reduce the chance of accidents.
• Do NOT disassemble the battery - never.
IMPORTANT! Always read the owner’s manual before charging the battery!
IMPORTANT! Read the following points about the battery charger.
6. Using and Maintaining the Battery Charger
• Do not use this charger in an environment of gas and corrosive substances.
• Never strongly shake, slam/drop, or throw the battery - damage is likely.
• Always protect the battery charger from rain and moisture!
• Ideal operating temperature for the battery charger is: 14F-104F (-10°C to +40°C).
• Do NOT disassemble the battery charger - never.
• Use only the charger provided with your electric bike. Otherwise damage could
occur to your battery, battery charger, and void the warranty.
• When charging, both battery and charger should be minimum 4 in (10cm) away
from the wall, and in a cool, well ventilated environment. Place nothing around or
on the charger, while in use!
Fig 5.2
Procedure for Charging
Charge the bike battery according to the following procedure:
1. When charging the battery by AC (house/wall plug), it is not necessary to be on.
2. Securely insert the charger output plug into the battery, then plug the main cable of
the charger into a reachable AC (wall plug) outlet.
3. During charging, the LED on the charger pack will be RED showing charging is in
process. When the light on the charging pack turns GREEN, charging is complete.
4. Upon full charge (GREEN light), FIRST disconnect the charger pack from the AC (wall
plug); SECOND disconnect the charger output plug from the battery pack. FINALLY,
close the charging socket cover on the battery - make sure it is securely closed.
7. Using and Maintaining the Electric Hub Motor.
Retrospec intelligent e-bikes are programmed to start with the electric assistance
(“Start-Aid”) after a rotation of the pedals (crankset).
• Do not use this bike in ood waters, heavy rain.
• Do not immerse, submerge the electric parts in water - damage will likely happen.
• Avoid impacts to the hub motor, the aluminum alloy hub cover may break.
• Regularly check the screws on both sides of the hub motor; tighten them as
necessary even if they are only a bit loose.
• It is necessary to periodically check the cable connection to the motor.
8. Maintaining the Controller.
Retrospec e-bikes have the Controller (the e-bike “brain”), positioned at the bottom
and inside the battery pack holder/housing. The Controller is a critical component for
your e-bike system. It is very important to follow the care guidelines below:
Do not immerse, submerge the electric parts in water - damage will likely happen.
NOTE: If you think water may have got into the control box, switch-o the power
immediately and pedal without electric assistance. You can pedal with electric
assistance as soon as the controller has dried out.
As with the battery, hub, display and other electrical parts - Never strongly shake,
slam/drop, or throw the Controller - damage is likely.
As with the battery, the best operating temperatures for the controller is: 5F-104F
(-15°C to +40°C).
The controller should be used in normal working temperature range from
-15°C to +40°C
WARNING! NEVER 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.

User’s Manual Electric Bike
17 18
9. Maintaining the Power-O Control of the Brake Lever
This is a very important component for safe riding. Pay close attention to protect it
from impact and damage. Regularly check that it is securely fastened to the handlebar.
10. Simple Troubleshooting
The information below is for diagnosing problems only. It is not a recommendation
for the user to carry-out repairs. Any remedy outlined must be carried out by a
professional e-bike repair person who is educated on the safety issues with bikes &
e-bikes.
Trouble Description Possible Causes Trouble Shooting
After the main battery switched
on, the motor does not generate
assistance when pedaling.
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 aects the battery working 3)
frequently going uphill, or riding with
head wind, or on poor road condition
4) the tires have low pressure (to be
inated) 5) frequently braking and
starting 6) battery has been stored
without use for quite a long time.
1) ambient temperature is 40°C and
above
2) ambient 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.
The magnetic ball point on the wheel
spoke is in too far away distance from
the wheel speed sensor (xed to frame
chain stay or front fork), which make
the sensor can not get any signals of
the revolving wheel.
1) trouble from the power outlet
2) poor contact between charger
input plug and power outlet 3) the
temperature is too low.
1) charge the battery in an area under
40°C, or according to this instruction
2) charge the battery inside the house,
or according to this instruction
3) please well maintain the battery
to avoid natural over-discharge 4) no
charging when the power supply is
lower than 100V, if the above has no
eect, please contact your vendor or
authorized service.
Check the distance between the
magnetic ball point and the wheel
speed sensor, and make sure the
distance should within 5mm.
1) check and repair the power outlet.
2) check and insert the power outlet
3) charge it in house, if the above has
no eect, please contact your vendor
or authorized service.
1) charge the battery according to
instruction 2) in winter or under 0°C,
store the battery inside the house 3) it
will be normal if riding conditions are
improved 4) pump the tires and ensure
tires are fully inated 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 manual
1) check if the connection is securely
xed 2) make the brake lever come
back to normal position with care
3) open the battery pack top, and
check if the fuse is broken. If yes, visit
your vendor or authorized service.
4) adjust distance between magnetic
ring and sensor, make sure distance is
within 3mm 5) x tight the connection
between the sensor and the controller.
1) the motor cable is loose 2) brake
lever did not return well, which keeps
the switch in “power o” position
3)battery fuse is broken 4) the
speed 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.
After charging over 4-5 hours, the
charger indicator LED 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.
There is no speed /KM show on the
LCD.
After plugging the power outlet, no
charger indicator LED is lit.
11. Electric Circuit Diagram and Specications
THROTTLE

User’s Manual Electric Bike
I. Motor 3 phase wire is connected with motor 1. Green (motor HA) 2. Yellow (motor HB) 3. Blue (motor HC) IV. Brake lever wire is connected with the brake lever 1. Blue (ground) 2. Red (brake lever signal) VII. Power wire of the speed sensor is connected with the controller 1. Blue (speed signal wire) 2. Red (+5V) 3. Yellow (ground)
V. Throttle 1. Red (+) 2. Yellow (signal SP) 3. Black (ground)
VI. Display wire is connected with the display 1. Red (+48V) 2. Blue (lock) 3. Black (ground) 4. Green (signal TX) 5. Yellow (signal RX)
II. Motor 1. Red (+5V) 2. Yellow (motor HB) 3. Green (motor HA) 4. Blue (motor HC) 5. Black (ground) 6. White (speed sensor)
III. Power wire is connected with the power 1. Red (+48V) 2. Black (ground)
19 20
12. Main Technical Specication Sheet
Please nd model name of your bike below:
Here is some of the general technical data for this electric bike:
Please nd the crossed technical data regarding the bike motor below:
Please nd the crossed technical data battery and charger below:
Maximum Speed with Electric Assistance:
Motor Type:
Battery Type:
Model
Maximum Output Power:
40km/h
Brushless with Starry Gears_with Hall
Lithium
Remark (for reference)
500W
48V
Distance per Full Charge:
Maximum Riding Noise:
Voltage:
JAX REV 500W
Rated Voltage:
48V: 40~50km (total loading ≤ 75kgs)
<60db
48V
21 ± 1A
500W
10.4Ah
41V ± 0.5V
Over Current Protection Value:
Rated Power:
Capacity:
Under Voltage Protection Value: