Flash FLASHV1 User manual

IMPORTANT READ THIS MANUAL FIRST
BEFORE YOU START TO RIDE YOUR BIKE
www.flashbike.io
Model: FLASHV1
FCC ID: 2AMLO-FLASH1
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
1) this device may not cause harmful interference, and
2) this device must accept any interference received,
including interference that may cause undesired operation.
This equipment should be operated with minimum distance
of 20cm between the radiator and the human body.

Learn About Flash
Contents
01-02
Read Me First 03
Assembling Flash
Completing Account Setup
Riding Flash
04-05
Limited Warranty
Bicycle Owner's Manual
Frequently Asked Questions
12-13
06-07
08-11
14-56
57

Learn About Flash
1
Handlebar
Shifters
Brakes
Front LED Headlight
Front disc brake
Front wheel
Quick release
Turn signals
Lights
Horn
Pedal assist
Stem
Touchscreen (TFT)
Seat post quick release
Saddle
Rear LED brake light
Rear disc brake
Rear wheel
motor
Derailleur & cassette Schrader Tire Valve
Right pedal
Charge port
Kickstand

Learn About Flash
2
Rear Brake Lever
Headlight
Horn
Throttle
Right Turn Signal
Left Turn Signal
Pedal Assist Level
Front Brake Lever
7-Speed Shifter

3
Read Me First
Unwrapping the bike
• Ask a friend to help remove the bike from the box.
• Open the box with the TOP side up.
• Remove the bike from the carton.
• Locate the user manual if you have not already.
• Then carefully remove all foam, paper and tie-strap
wrapping materials from the bike.
• Locate the battery charger box and kit box containing
the tools, pedals, skewer and reflectors.
We have provided YouTube videos at http://support.flashbike.io with detailed
instructions on how to setup your Flash with the free Flash smartphone App.
Download the Flash APP
• Download free smartphone APP for iOS and Android
• Follow detailed instructions at http://support.flashbike.io
Required tools
• 4mm allen wrench (included)
• 5mm allen wrench (included)
• Adjustable crescent wrench or 15mm wrench
• Philips screwdriver
What’s included in the box
• 1x Flash
• 1x user manual
• 2x pedals
• 1x front skewer
• 1x 36V lithium ion battery pack (inside the bike frame)
• 1x 110V battery charger
• 2x reflectors (front and rear)

4
Assembling Flash
How to assemble the bike 3. Assemble the handlebar on the stem using a provided
4mm allen key. Remove the (4x) 4mm screws from the
stem. Then attached the handlebar as shown in the
image. Then angle the brakes on the handlebar at 45
degrees towards the front of the bike. Then tighten the
4x 4mm screws on the stem at 7Nm - 8Nm of torque.
We have provided YouTube videos at http://support.flashbike.io with detailed
instructions on how to assemble your bike. Written instructions are below.
2. Assemble the front wheel on the bike’s front fork.
1. Start first by attaching the skewer to the front hub and
wheel.

5
4. Assemble and center the stem so the handlebar is per
pendicularly aligned with the front wheel. Tighten the
(2x) 5mm hex screws on the stem to 8Nm - 9Nm of
torque.
5. Use a 15mm wrench to assemble the pedals. NOTE:
the right pedal must be attached to the right crank arm
(chainring side) and tighten the pedal in a clockwise
rotation. The left pedal must be attached to the opposite
side and tighten by counter clockwise. Do not reverse
the pedals or you will damage the bike. Apply 35Nm of
torque.
6. Assemble the clear front reflector on the front of the
handlebar and the red reflector on the seatpost facing
the rear.
7. Add 40 P.S.I. (min) to 65 P.S.I. (max.) to both the front and
rear tire if your tire is a Kenda 26” x 2.10” tire. We recom-
mend to use a hand pump or foot pump with a schrader
valve that is similar to an auto tire valve. Note: Always
check the tire pressure indicated on the outside wall of
your tire before each ride.
It's easy: how to videos at http://support.flashbike.io

6
1. Downloading the free smartphone APP
Please download the Flash APP available in iOS App
store or Android Google Play Store or visit http://sup-
port.flashbike.io
2. Create your Account
The first time you open your newly downloaded Flash
APP, you will be asked to register and create a profile
with your email address. You can register your Flash
during the registration process.
3. Pairing your bike with your Flash APP on your
smartphone
1. Make sure to turn on your Bluetooth under your
smartphone’s settings.
2. After you create your user profile you will receive
a Bluetooth pairing code. You will need to enter this
code when you pair your Flash APP on your smart-
phone with your Flash bike.
It's easy: how to videos at http://support.flashbike.io
Completing Account Setup
3. Create your unique 5-digit security PIN code. Save
this code in a safe place as you will need it to turn
on the bike or turn the bike from ARM to OFF. If you
choose not to create a PIN code you can enter the
default PIN code 11111 on the LCD screen.

7
4. First charge the battery in your Flash
You must first connect the battery charger to a 110V
wall outlet and then to the charge port found on the
underside of your main tube of the bike. Remove the
rubber flap to insert the charger plug to the charge
port. The battery charger LED will indicate red when
the battery is charging. The TFT screen will indicate
when the battery is being charged. The battery is fully
charged when the LED light turns green on the battery
charger. To fully charge a battery typically takes 4-7
hours. Charge the bike until it turns green before your
first ride.
It's easy: how to videos at http://support.flashbike.io

8
How to turn the bike on for the very first time
Once your bike is fully charged tap the touchscreen with
your finger to turn on the TFT screen. The Flash logo will ap-
pear on the screen. Note: make sure the bike is fully charged
and the charger plug is removed from the bike’s charge port.
How to turn your bike On and start riding
1. Tap the touch screen with your finger to turn on the TFT
screen and the Flash logo will appear on the screen.
2. Enter your unique 5-digit security PIN code to unlock
and turn on Flash. If your bike is armed use this same
PIN code to disarm the bike. Note: if you did not create
a unique PIN code during the profile setup process on
your Flash smartphone APP, you can enter the factory
default PIN code 11111.
3. The screen will then show 0 mph and Pedal Assist Level
0. If your bike is armed you will need to enter your
5-digit security code by touching the numbers on the
TFT screen. If you entered your security code incorrectly
Riding Flash
you will have 4 more tries before the bike is locked and
unable to turn on. If this happens you will need to unlock
the bike with your APP. Please contact Flash support if
you encounter any issues.
How to turn the bike o
Swipe the touch screen from the right edge of the screen to
the left edge of the screen. Then touch the OFF button to
turn the bike to its OFF state. The motor will be turned o in
this state. The throttle and PAS will not work in this state. All
electrical features such as the lights and horn and motor will
be turned o in this state. You can continue to ride the bike
like any traditional bike in the OFF state.
How to Arm the bike
1. To ARM the bike you will need to turn on the TFT by
touching or swiping the screen.
2. Then select by touching O & Arm button. Your bike is
now in the Armed mode. You can track the status of your
It's easy: how to videos at http://support.flashbike.io

9
This will turn on the front headlight. To turn o the main
headlight hold down the headlight button for 2-3 sec-
onds.
3. To select the three levels of brightness on the main
center headlight you will need to push the light button
quickly to toggle between the 3 modes which includes
low to mid to high intensity.
How to turn on the horn
Push the Horn button on the right side of the handlebar to
trigger the horn.
It's easy: how to videos at http://support.flashbike.io
bike with your APP in this mode.
How to Disarm the bike
To disarm the bike touch the screen twice until you see the 6
digit passcode screen. Then enter your 5-digit security code
to unlock the bike. Your bike is now ready to ride or you can
turn o the bike by swiping the screen and touching the OFF
button.
How to turn on or o the front LED headlight
1. Turn on your bike by touching the TFT screen. If your
bike is armed you will need to enter your 5-digit security
code.
2. Then hold down the light button for 2-3 seconds on the
right side of the handlebar to turn on the headlight as
show in the image below.

10 It's easy: how to videos at http://support.flashbike.io
How to select the Pedal Assist Level (PAS)
1. First turn your bike to the On state.
2. Press the + button on the left side of your handlebar to
select 0,1, 2, 3, or 4 PAS levels.
3. Press the - button on the left side of your handlebar to
select 4, 3, 2, 1, or 0 PAS levels.
How to use 7 speed shifter
Note: you must pedal in order to use your mechanical
shifter.
1. To climb a hill, use your right thumb to shift from gear
7 to 1.
2. To ride faster, press the + sign with your right thumb
to reach up to the 7th gear.
Throttle on Demand
To use the throttle make sure your bike is in the On state and
PAS is between 1-4. Then twist the throttle back with your
right hand as show in the image below.
How to disengage the motor
To disengage the motor pull back on either the left or right
side of the brake lever. This will cut o the power to the mo-
tor. Letting go the throttle will also disengage the motor.

11
Managing the Battery
• It is recommended to always charge your battery after
each ride. This will help extend the life of your battery
and keep your system active.
• We do not recommend to charge the battery pack under
10 degrees celsius.
• Never charge the battery pack under direct sunlight.
• Never charge the battery pack under the rain. If the bike
is wet, always wipe down the bike and wait until it is fully
dry prior to plugging the charger into the bike’s charge
port.
• Never leave the charger plugged into the bike’s charge
port for more than 24 hours.
• The battery can go into sleep mode if unused for a pe-
riod of time. To wake the battery out of sleep mode you
have to plug the charger into the bike’s charge port with
the charger plugged into the AC wall outlet.
How to Maintain & Service
• Recommended Service Intervals -see page 47
• Storing the bike for extended periods
Prior to storing your bike always charge your battery
pack to its full capacity. Your App will notify you when
It's easy: how to videos at http://support.flashbike.io
the battery needs to be charged. It is recommended
to store your bike in a dry location within the follow-
ing temperatures: 41F to 95F (5C to 35C) at 65 relative
humidity.

12
Limited Warranty
LIMITED WARRANTY
KPZ, Inc., DBA (“Flash”) provides the following warranty
against defects in materials and workmanship:
Two Years from the Date of Purchase: Frame, Wheels,
Fenders, Racks, Brakes, Shifters, Crank, Pedals, and Seat,
(but not including grips, tires, tubes, cables, brake shoes, and
seat covering).
One Year from the Date of Purchase: Battery, Battery Char-
ger, Motor, Touchscreen, Lights, and Handlebar Controls
LIMITATIONS
This warranty, or any implied warranty, is expressly limited to
the repair or replacement of defective parts. This warranty
is oered only to the original purchasers of Flash bikes and
is not transferable. This warranty only applies to new Flash
bikes purchased through Flash’s website or Flash’s Indiego-
go campaigns.
A bicycle must be registered with Flash within 30 days of
purchase or this warranty is void
This warranty, or any implied warranty, does not cover
claimed defects, malfunctions, or failures that result from
normal wear and tear, accidents, misuse, abuse, neglect,
commercial use, any modifications (other than the addi-
tion of Flash-approved accessories as published on Flash’s
website), improper assembly, improper maintenance, ship-
ping, or acts of God.
Except as expressly set forth above, Flash disclaims all
other warranties, expressed or implied, including implied
warranties of merchantability and fitness for a particular
purpose.
Some states or countries do not allow limitations on how
long an implied warranty lasts, so the above limitation may
not apply to you.

13
Flash is not responsible for incidental or consequential
damages, including, damages for personal injury, property
damage, or economic losses, whether based on contract,
warranty, negligence, product liability, or any other theory.
Some states or countries do not allow exclusions of inciden-
tal or consequential damages, so the above exclusion may
not apply to you.
Any claim against this warranty must be made through Flash.
To initiate a warranty claim please contact Flash at
support@flashbike.io.
RETURN POLICY
Bikes may be returned within 30 days of bike user account
setup, or within 90 days of receiving the bike, whichever
occurs first.
Accessory items purchased as standalone products may be
returned within 30 days of receiving shipment.
To qualify for a full refund, all products must be in new, un-
used condition with its original packaging. Proof of purchase
is required with original receipt. Any refund will be applied to
the original credit card used in the purchase transaction.

14
Bicycle Owner’s Manual
IMPORTANT:
This manual contains important safety, performance and
service information. Read it before you take the first ride on
your new bicycle, and keep it for reference.
Additional safety, performance and service information
for specific components such as suspension or pedals on
your bicycle, or for accessories such as helmets or lights
that you purchase, may also be available. Make sure that
your dealer has given you all the manufacturers’ literature
that was included with your bicycle or accessories. In case
of a conflict between the instructions in this manual and
information provided by a component manufacturer, always
follow the component manufacturer’s instructions.
If you have any questions or do not understand something,
take responsibility for your safety and consult with your
dealer or the bicycle’s manufacturer.
NOTE: This manual is not intended as a comprehensive
use, service, repair or maintenance manual. Please see your
dealer for all service, repairs or maintenance. Your dealer
may also be able to refer you to classes, clinics or books on
bicycle use, service, repair or maintenance.

GENERAL WARNING
Like any sport, bicycling involves risk of injury and damage.
By choosing to ride a bicycle, you assume the responsibility
for that risk, so you need to know — and to practice — the
rules of safe and responsible riding and of proper use and
maintenance. Proper use and maintenance of your bicycle
reduces risk of injury.
This Manual contains many “Warnings” and “Cautions” con-
cerning the consequences of failure to maintain or inspect
your bicycle and of failure to follow safe cycling practices.
The combination of the safety alert symbol and the word
WARNING indicates a potentially hazardous situation which,
if not avoided, could result in serious injury or death.
The combination of the safety alert symbol and the word
CAUTION indicates a potentially hazardous situation which,
if not avoided, may result in minor or moderate injury, or is an
alert against unsafe practices.
The word CAUTION used without the safety alert symbol
indicates a situation which, if not avoided, could result in
serious damage to the bicycle or the voiding of your war-
ranty.
Many of the Warnings and Cautions say “you may lose con-
trol and fall”. Because any fall can result in serious injury or
even death, we do not always repeat the warning of possible
injury or death.
Because it is impossible to anticipate every situation or
condition which can occur while riding, this Manual makes
no representation about the safe use of the bicycle under
all conditions. There are risks associated with the use of any
bicycle which cannot be predicted or avoided, and which are
the sole responsibility of the rider.
A special note for parents:
As a parent or guardian, you are responsible for the activities
and safety of your minor child, and that includes making sure
that the bicycle is properly fitted to the child; that it is in good
repair and safe operating condition; that you and your child
have learned and understand the safe operation of the bi-
cycle; and that you and your child have learned, understand
and obey not only the applicable local motor vehicle,

16
bicycle and trac laws, but also the common sense rules of
safe and responsible bicycling. As a parent, you should read
this manual, as well as review its warnings and the bicycle’s
functions and operating procedures with your child, before
letting your child ride the bicycle.
WARNING: Make sure that your child always wears an
approved bicycle helmet when riding; but also make sure
that your child understands that a bicycle helmet is for
bicycling only, and must be removed when not riding. A
helmet must not be worn while playing, in play areas, on
playground equipment, while climbing trees, or at any time
while not riding a bicycle. Failure to follow this warning
could result in serious injury or death.
WARNING: If you intend to put a child-seat on your Bicycle,
you will need to completely enclose any coil springs under
the saddle with a suitable covering to prevent the pinching
or trapping of the child passenger’s fingers.
1. First
NOTE: We strongly urge you to read this Manual in its en-
tirety before your first ride. At the very least, read and make
sure that you understand each point in this section, and refer
to the cited sections on any issue which you don’t complete-
ly understand. Please note that not all bicycles have all of the
features described in this Manual. Ask your dealer to point
out the features of your bicycle.
A. Bike fit
1. Is your bike the right size? If your bicycle is too large or
too small for you, you may lose control and fall. If your
new bike is not the right size, ask your dealer to ex-
change it before you ride it.
2. Is the saddle at the right height? To check, see SeIf you
adjust your saddle height, follow the Minimum Insertion
instructions in Section 3.B
3. Are saddle and seatpost securely clamped? A correctly
tightened saddle will allow no saddle movement in any
direction. See Section 3.B
4. Are the stem and handlebars at the right height for you?
If not, see Section 3.C

17
5. Can you comfortably operate the brakes? If not, you
may be able to adjust their angle and reach. See Section
3.D and 3.E
6. Do you fully understand how to operate your new bicy-
cle? If not, before your first ride, have your dealer explain
any functions or features which you do not understand.
B. Safety first
1. Always wear an approved helmet when riding your bike,
and follow the helmet manufacturer’s instructions for fit,
use and care.
2. Do you have all the other required and recommended
safety equipment? See Section 2. It’s your responsibility
to familiarize yourself with the laws of the areas where
you ride, and to comply with all applicable laws.
3. Do you know how to correctly secure your front and rear
wheels? Check Section 4.A.1 to make sure. Riding with
an improperly secured wheel can cause the wheel to
wobble or disengage from the bicycle, and cause seri-
ous injury or death.
4. f your bike has toeclips and straps or clipless (“step-in”)
pedals, make sure you know how they work (see Sec-
tion 4.E). These pedals require special techniques and
skills. Follow the pedal manufacturer’s instructions for
use, adjustment and care.
5. Do you have “toe overlap”? On smaller framed bicycles
your toe or toe clip may be able to contact the front
wheel when a pedal is all the way forward and the wheel
is turned. Read Section 4.E. to check whether you have
toeclip overlap.
6. Does your bike have suspension? If so, check Section
4.F. Suspension can change the way a bicycle performs.
Follow the suspension manufacturer’s instructions for
use, adjustment and care.
C. Mechanical Safety Check
Routinely check the condition of your bicycle before every
ride. Nuts, bolts screws & other fasteners: Because manu-
facturers use a wide variety of fastener sizes and shapes
made in a variety of materials, often diering by model and
component, the correct tightening force or torque cannot be
generalized. To make sure that the many fasteners on your
bicycle are correctly tightened, refer to the Fastener Torque
Specifications in Appendix C of this manual or to the torque
specifications in the instructions provided by the manufac-
turer of the component in question. Correctly tightening a

18
fastener requires a calibrated torque wrench. A professional
bicycle mechanic with a torque wrench should torque the
fasteners on you bicycle. If you choose to work on your own
bicycle, you must use a torque wrench and the correct tight-
ening torque specifications from the bicycle or component
manufacturer or from your dealer. If you need to make an
adjustment at home or in the field, we urge you to exercise
care, and to have the fasteners you worked on checked by
your dealer as soon as possible.
WARNING: Correct tightening force on fasteners –nuts,
bolts, screws– on your bicycle is important. Too little
force, and the fastener may not hold securely. Too much
force, and the fastener can strip threads, stretch, deform
or break. Either way, incorrect tightening force can result
in component failure, which can cause you to lose control
and fall. Make sure nothing is loose. Lift the front wheel o
the ground by two or three inches, then let it bounce on
the ground. Anything sound, feel or look loose? Do a visual
and tactile inspection of the whole bike. Any loose parts
or accessories? If so, secure them. If you’re not sure, ask
someone with experience to check.
Tires & Wheels: Make sure tires are correctly inflated. Check
by putting one hand on the saddle, one on the intersection
of the handlebars and stem, then bouncing your weight on
the bike while looking at tire deflection. Compare what you
see with how it looks when you know the tires are correctly
inflated; and adjust if necessary. Tires in good shape? Spin
each wheel slowly and look for cuts in the tread and side-
wall. Replace damaged tires before riding the bike. Wheels
true? Spin each wheel and check for brake clearance and
side-to-side wobble. If a wheel wobbles side to side even
slightly, or rubs against or hits the brake pads, take the bike
to a qualified bike shop to have the wheel trued.
CAUTION: Wheels must be true for rim brakes to work
eectively. Wheel trueing is a skill which requires spe-
cial tools and experience. Do not attempt to true a wheel
unless you have the knowledge, experience and tools
needed to do the job correctly.
Wheel rims clean and undamaged? Make sure the rims are
clean and undamaged at the tire bead and, if you have rim
brakes, along the braking surface. Check to make sure that
any rim wear indicator marking is not visible at any point on