Evinci KEA User manual
USER MANUAL
KEA Step-Through Trekking ebike
PLEASE READ CAREFULLY
Table o Contents
Safety Instructions........................................................................................3
Symbols.......................................................................................................3
Introduction.................................................................................................4
Mode of operation and extent of electronic power assistance..........................................4
Modes of support.........................................................................................................4
What comes with the bike?............................................................................4
Optional accessories......................................................................................4
omponents.................................................................................................5
Basic Safety Tips...........................................................................................6
For your road safety.....................................................................................................6
How to use your charger...............................................................................6
Safety notes concerning the battery...............................................................8
harging your battery...................................................................................9
How to remove and insert the battery............................................................................9
Before starting to ride.................................................................................10
Mount or dismount front wheel....................................................................................10
Adjust seat height.......................................................................................................10
How to find the correct saddle height?.........................................................................10
Adjusting the saddle angle..........................................................................................11
Adjust the stem and handlebar....................................................................................11
heck tire pressure.....................................................................................................11
Suspension seat post..................................................................................................12
Suspension fork..........................................................................................................12
Operation...................................................................................................13
Display.......................................................................................................................13
Throttle......................................................................................................................14
Gears.........................................................................................................................15
Brakes.......................................................................................................................16
Maintenance...............................................................................................16
Brakes.......................................................................................................................16
Gears.........................................................................................................................16
Safety points..............................................................................................17
Repairing a puncture in the rear wheel.........................................................17
Troubleshooting..........................................................................................18
Glossary.....................................................................................................18
BMS...........................................................................................................................18
ontroller...................................................................................................................18
Display.......................................................................................................................19
Hall sensor.................................................................................................................19
Pedal Assist Sensor (PAS)............................................................................................19
Torque Sensor............................................................................................................19
2
Safety Instructions
Thank you for purchasing an
evinci
electric bike, designed by NZEBIKES. Your
KEA trekking bike features the most recent innovation in technology and applies
to the AS/NZ standard. For safety reasons, it is most important that you read
this User Guide BEFORE you operate the bike. Improper handling can reduce its
riding performance and most importantly, pose danger to your safety and
health!
NZEBIKES is continuously updating and innovating this product. The printed
manual may therefore not always include the latest updates. However, we shall
make sure that our online manual will always be up to date on evinci.nz/support.
We want also encourage you to register your bike with your
frame serial number. This allows us to help you finding your
bike in case of theft, as we get contacted by the police when
bikes are recovered.
Your frame serial number is stamped into the front of the
headset tube below the handlebar.
To register just go to our
evinci
website (evinci.nz) and click on “Login” to
create an account with your details. You may register up to two bikes within
the same account.
Symbols
Please pay particular attention to information next to one of the symbols shown
below as it can be very important for your safety.
WARNING
This symbol indicates that improper handling poses a
risk to your health and safety
ATTENTION
This indicates that improper handling could damage
components and make void the warranty.
NOTE
Points out to useful tips
3
Introduction
You have decided in favour of a Pedelec (Pedal Electric ycle) - a bicycle that is
equipped with an electric motor to give you additional assistance when riding.
With this bicycle, you can make better progress in headwinds, when
transporting heavy loads or on steep slopes.
You can select the level of power assistance required according to the weight of
your load and/or the prevailing road conditions, the effectiveness of the power
assistance depends on your pedal power and the level of assistance selected.
Before switching on the electric assistance system, please read the chapter
“ harging the battery”. The battery must be fully charged before you go for a
ride the first time.
Mode of operation and extent of electronic power assistance
As soon as you turn on the electric assistance system and begin pedalling or
pushing the throttle, electronic power assistance is available. Depending on the
selected assistance level the motor will add a certain amount of power to assist
you. The amount of support is also proportional to the force pushed into the
pedals thanks to the torque sensor integrated into the mid drive motor system.
An average rider can easily reach on flat tracks up to 80km out of the standard
13Ah battery.
Modes of support
This ebike comes with two different riding modes.
Torque: will support the rider using torque sensing. hoose out of 5 levels
how much the motor should add to your
Cadence: enables pedal-assist mode, which reacts as soon as you start
moving the pedals. You will get a fixed amount of assistance depending on
selected level between 1 and 5.
What comes with the bike?
•240V mains charger
•Manual
Optional accessories
•PowerBuddy: a 12V direct charger. Allows charging your battery through
your car or RV battery without an additional inverter.
•Heavy duty front basket (mounted to head tube)
•Rear basket
You can order these accessories through your local dealer.
4
Components
1 olour Display 5 Battery harge Port
2 ontrol Buttons 6 Battery Lock
3 Throttle 7 Suspension Lockout ontrol
4 Mid-Drive Motor 8 Rebound ontrol
5
Basic Safety Tips
Always pull the brakes and hold the handlebar firm and
straight before taking off to make sure you stay in control of
the bike when power assistance is in action!
For your road safety
●Always wear a suitable bike helmet
●Wear bright clothing or reflective elements
to be seen better by other road users
●Wear shoes with a non-slip sole
●Wear close-fitting clothing on your legs or
wear trouser clips
●Wear bicycle gloves
How to use your charger
Your KEA comes with a 3Ah quick charger to charge your battery. Please do not
use any other charger.
The typical time to charge the standard 13Ah battery if it is empty is about 5
hours.
If you want to charge your battery from a car or motor home
(12V systems), NZEBIKES or your retailer can supply a special
charger called PowerBuddy for this purpose.
Before you use the charger the first time please read the following notes
regarding safety carefully!
•Keep the charger away from children!
•to prevent any possible injury, this charger should only
be used for the original lithium battery which is supplied
together with the KEA e-bike
•Any other battery is not compatible and risks to explode
while charging, causing serious injury to people as well
6
Ref (1)
as damage to other equipment
•Using this charger for batteries not supplied by Volto
could risk catching fire, provoke electric shock and/or
cause serious injury
•Please make sure that the charger is always kept dry
and does not get wet at any time.
Should there be an incidence of contact with water or any other liquid, make
sure to unplug the charger immediately from the power socket and have it
inspected by your dealer.
Please make sure the charger is always placed on a flat surface when in use.
Also, make sure that the charger is always unplugged and removed from the
power socket when not in use.
Before using the charger, always make sure that the plug and the cables are
not damaged.
Never connect a damaged cable or plug to the power socket. Never try to
disassemble the charger. There are no serviceable parts in the charger.
Always unplug the charger before cleaning it. The charger should only be
cleaned with a dry cloth. Never use a wet cloth, oil or any other liquid. Only use
the original cable supplied with the charger.
The charger LED (1) indicates the battery status:
LED STATUS
green the battery is not connected
red the battery is charging
green the battery is charged, the charger has switched off
7
Before using your battery the first time, it has to be charged
once overnight for at least 12 hours.
Safety notes concerning the battery
•Keep the battery out of reach for children
•Never try to open the battery. Apart from this being
dangerous, all warranty will be void
•Do not provoke a shortcut circuit with metal gadgets
•Remove the battery from the bike when transporting on
an external bike rack
•Do not dip the battery in water or any other liquid
•Do not keep the battery close to heat or open fire
•A battery needs to be recycled after use, never throw it
in an open fire as it could explode
•If the battery is damaged because it has been dropped
or because of a biking accident, there might be a risk of
an internal short-circuit. Immediately stop using a
damaged battery.
To maximise the use of this battery, please consider the following:
The battery will not charge when exposed to temperatures below +0° or
above +60° . It is therefore recommended to keep the battery at room
temperature before charging it.
The charger operates with a microcomputer system with automated control
functions. It automatically stops charging when the battery is full. It cannot be
damaged by overcharging.
None the less, we strongly recommend to always disconnect the power plug
from the wall socket after the battery is charged as power surges, i.e. lightning,
through the grid can damage the charger or battery electronics!
When storing the battery for a long period of time, (e.g. over winter) it is
important to place surface in a dry place. The battery should be recharged once
every 3 month when it is not used. Negligence could lead to complete
discharge of the battery and this would void the warranty.
8
The discharging of the battery is due to chemical processes
that are taking place within the battery cells. How much a
battery discharges depends on the time it has not been used
and the temperature it has been exposed to. Thus, a re-
charge every 3 months, when not in use, is essential.
Charging your battery
You may charge the battery on the bike or remove it to a
more convenient place.
1. Open the rubber plug cover at the left side of the down tube (#5)
2. onnect charger cord to the battery
3. onnect the power cord to a mains socket
The charger will get warm while charging – do not cover while
in use as it might cause a malfunction.
Always close the rubber cover for the charge socket at the
down tube! Water will damage the battery.
How to remove and insert the battery
1. Removal: unlock the battery lock at the right side of the battery
2. The battery will pop out from it's rail, lift the battery out of the down tube
3. Insert: Slide the battery into the down tube, push the battery down at the
top till it locks itself with an audible “click” sound.
9
Before starting to ride
Mount or dismount front wheel
For easy transport, you may remove the front wheel using the quick release at
the front wheel axle.
To remove the wheel open the lever to release the pressure. Now hold the lever
and turn the nut on the other side about 8-9 times – do not remove the nut!
You should be now able to lift the wheel out
of the fork.
To mount the wheel repeat procedure the
other way round. Hold the lever pointing
parallel to the fork in the open position
(downwards), turn the nut till you feel a slight
resistance. Try to close the lever – if it is too
hard to do so, loosen the nut a small bit and try again.
Before every ride make sure the quick release is tightened
properly. To fail so can lead to serious injuries!
Adjust seat height
Open the quick-release lever at the seat clamp, adjust the seat height and close
the lever firmly. If the lever is too loose, open the lever again and turn the
adjusting nut clockwise until you feel resistance. Now close lever again. It
should close with noticeable resistance.
Never tighten the seat post if the maximum mark is visible,
otherwise, you can injure yourself or damage the seat post.
How to find the correct saddle height?
1. Sit on the bike saddle
2. Try to reach pedal with your heel when it is in
the bottom position. Your knee should be
more or less fully straightened out
3. Place the ball of your foot on the centre of the
pedal. If your knee is now slightly bent, the
saddle height is correct
10
Adjusting the saddle angle
Best riding comfort is found when the saddle is horizontal, some riders prefer a
slight forward angled seat.
Never angle a seat
backwards as it can
quickly lead to back
pain or physical injuries
1. Loosen the clamping screw
anti-clockwise
2. Tilt the saddle to the
required angle
3. Tighten the clamping screw
clockwise. Make sure that the
screw is tightened firmly (10 NM)
Adjust the stem and handlebar
The angle of the stem can be adjusted by opening the 6mm
Allen Key screw at the left side of the stem. Do not remove
the screw! There are two clamp plates, as soon as both are
release you may adjust the angle. Re-tighten properly!
Re-adjust the tilt of the
handlebar by opening two of the
handlebar clamp screws (upper
or lower, 5mm Allen Key).
Check tire pressure
It is very important to maintain the correct tire pressure. Too low pressure will
decrease the range and can lead to rim or tire damages when riding over
kerbs. The recommended tire pressure is 40 psi. For muddy undergrounds, the
tire pressure can be reduced to improve traction.
11
uspension seat post
The high-end parallelogram seat post
suspension can be adjusted to the riders
weight and preferences. Use a 6mm Allen
key, turn the screw counter-clockwise to
make the suspension softer. Turn it clockwise
to stiffen up the suspension.
Please bear in mind that a very soft setting
will increase the wear on the rubber stopper
(replaceable spare part).
uspension fork
Your KEA mountain bike is equipped with a high-performance air suspension.
This fork allows the rider to adjust the suspension to their riding style and
terrain.
The pressure of the air-cartridge can be adjusted on the left
side by adding or releasing air pressure. A special pump is
required for this purpose – your local dealer can help you
with this. The pressure should be set according to the weight
of the rider.
Lock Out Lever
The right side lever allows to lock the oil cartridge. If
the lever is turned clockwise any fork movement will
be prevented. When going uphill it is usually better
to lock your fork to prevent fork pumping.
Rebound Control
A rebound control knob can be found at the bottom of
the right fork leg. For slow and bumpy rides adjust to
(+) for fast rides that need good brake control choose
a faster rebound setting (-).
12
Operation
•Turn the display on by pushing the (l)
button
•Select the desired assistance level with the
UP or DOWN keys. Start riding.
•Use the throttle as desired to add
additional power to the selected assistance
•To change the riding mode
(torque/cadence) push the set key once
•When finished riding press the (l) button
for 3 sec to turn the system off (it will also turn off after 5 min when not
used)
Display
Battery Level: The display shows the battery
level with 5 segments. Each level is about 20%
of power. Below 10% the controller or battery
might turn off when a higher load is applied, i.e.
riding uphill.
POWER:
The white bar segments on the left lower side
show how much power the motor consumes.
This allows the rider to see how efficient he or
she is riding, less bars mean the battery
capacity will last further.
Riding Modes: push SET to toggle
T = torque mode
C = cadence mode
Assist: your selected level of assistance. 0 = no support, 5 = max support
KM/H: shows your current riding speed
TRIP: accumulates until manual reset
TIME: The riding time of your trip (accumulates)
Reset trip and time: push SET button for >2sec. Select '
1. General Set'
menu
Push SET. Select '
1.1 Trip lear
', push SET again: The 'N' turns red. Now use
(+) or (-) to toggle to 'Y'. Push SET again and move up ( - key) to '<<'. Push
13
SET again. Move down to '
4. Save & Exit'
. Push SET to exit. Please do not
change other settings.
ODO: the total distance you have travelled with this bike (can't be reset)
Lights: to turn the LED lights of your bike on or off push the ON/OFF (I)
button (<1sec).
Error Code: if there is a problem in the electrical system you might encounter
a Error code message. Please refer to the Troubleshooting section or ask your
dealer for assistance.
Walk assistance: you can activate the motor to support you pushing the bike
up a hill. Press and keep depressed the DOWN (-) button. After 2 seconds the
motor will start with a maximum speed of 6kph.
Walk assistance is not supposed to be used while riding the
bike
Throttle
The left hand side thumb-throttle allows the rider to add power to the selected
assistance level. This can be useful when starting or to give you an extra boost
when riding up a hill.
The throttle shall not be used to operate this ebike like a
motorbike. Using the throttle consistently in a wrong gear
combination can lead to motor overload and voids the
warranty.
14
Gears
Only change gears while pedalling otherwise the derailleur
might get damaged
Your KEA ebike is equipped with a high
performance Shimano 10-gear system.
Since this ebike uses a mid drive motor
which supports the crank, it is essential
to choose the right gear depending on
your riding situation. I.e. the motor will
not be able to support you adequately
up a hill if you have selected a much too
high gear, similar as if you would try to
get up a steep hill in a manual car in gear five.
If you have to adjust gears before riding, i.e. to start in first gear, lift the rear
wheel using the side stand and turn the crank while changing the gears.
As a rule of thumb, gears on a mid-drive bike are changed and used similar to
a car with a manual gearbox.
You will start in 2nd gear, on a flat road you will choose gear 6 or 7 to pedal
along. Uphill go back to 3 or for steeper hills gear 1. If you ride faster or
downhill choose higher gears.
While you change gears a sensor will reduce the motor power to avoid as much
as possible too high forces and nasty noises. You can help with this process by
reducing your pedal power with each gear change. Your chain and cassette will
thank you with a higher life expectancy.
The assistance level chosen on the display will assist you up to a certain speed
and adds motor power according to how much you push into the pedals.
hoose the assistance level and gear according to your needs and riding style.
Watch your crank revelations, if you have the feeling you have to push too hard
at too low revelations, change to a lower gear. If you pedal very fast with less
effort, choose a higher gear or reduce the assistance level.
When you intend to stop it is good practice to change the
gear back to a low gear so you may start without any
problems. This can easily be done while braking and slowly
pedalling as the motor will not push you further.
15
Brakes
We recommend always using both brakes at the same time – this allows the
rider to take the best control over the braking process without stressing the
front or rear brake. To brake efficiently, your front brake is there to stop you
and the back brake is there to shave off speed. Roughly 70-80% of your
stopping power comes from the front brake. Leaving 20-30% for the back
brake.
Please note that this bicycle uses high performance hydraulic
brakes with motor cut-out. To engage the motor cut-out a
certain amount of brake force is required.
aintenance
Your KEA e-bike needs regular maintenance as any other normal pushbike. All
bike shops can help you with these maintenance steps.
There is no maintenance of the electrical
components necessary.
Brakes
This bike uses hydraulic brakes which are self-
adjusting. If you feel that the brake force gets
lower or the way you have to press the brake
levers exceed 50% of X (Fig 1) most likely the
brake pads have to be replaced. Please see your
local bike shop.
Gears
Our KEA bike uses a solid and easy to maintain
Shimano Deore derailleur system.
After a while it can happen that gears do not
perfectly change anymore or you experience a
rattling noise while pedalling. This is normal due
to the nature of the used control wire hulls
which can get compressed over time. To re-
adjust it is usually enough to slightly tighten the
gear wire.
For the rear derailleur turn (A) anti-clockwise
while turning the pedals till the rattle goes away.
16
Fig 1
Safety points
We recommend a 12-month interval service or every 1000 km.
Important checkpoints are:
▪Quick-release front and rear
axle
▪headset
▪stem clamp
▪seat post clamp
▪brake caliper screws
▪spoke tension
Spoke tension has to be checked on a regular interval. Failing
can cause spoke breakage and will void the warranty
Repairing a puncture in the rear wheel
Since the rear wheel comes with a quick release axle it is very easy to remove
the wheel.
Just follow the same instructions as for the front wheel.
17
Troubleshooting
Problem Resolution
The Battery is charged but the
display won't turn on
1. heck plug going from display to frame
harness, unplug once and plug back
together.
2. If possible measure voltage at the
battery socket (left and right pin). If no
voltage can be measured, take the
battery to your retailer.
The harger is plugged in, but
LED stays green
Try to use another charger, otherwise it might
be a battery fault, please take the battery to
your retailer
The Display is turned on, but
the motor won't start (throttle
or pedal-assist)
The Display shows error code 4
heck the throttle lever – it might be jammed
or otherwise engaged.
Glossary
BM
BMS is an electronic circuit for battery monitoring. It increases a battery pack's
safety by making sure that all cells are operated within the permitted voltage
range only. When current is too high, the temperature is too high or one line of
batteries inside the battery is outside the permitted voltage range the charge
output will be switched off. This avoids the total discharge of the battery during
normal operation. An integrated balancer ensures that any differences in
voltage between single cells are equalised. In case of a problem with the
charging device, the BMS makes sure that the battery cannot be overcharged.
A capacity gauge may be included to display the remaining capacity.
Controller
The controller is the heart of any electric bicycle. It has the power electronics
to drive the motor and a microprocessor. The controller processes all input
signals coming from the different sensors and it talks to the display on the
18
handlebar. The microprocessor runs the firmware, which is the piece of
software telling the controller what to do. Firmware updates can be applied to
improve or add functions.
Display
The display is usually mounted to the handlebar and allows the rider to readout
vital information about the e-bike system and control the functions in the
controller. There are different kinds of controllers with LED or L D interfaces.
Hall sensor
Hall sensors are used in motors, cadence sensors, brake switches, and power
throttles. Inside the motor, they determine the motor direction and submit it to
the controller so the motor will turn in the right direction right at the start.
Inside the PAS they detect if the magnet disc is rotating. Inside the power
throttle, they measure how far the throttle is rotated. Hall sensor can be of the
analogue or digital kind. Functional principle: When hall sensors are passing by
a magnetic field they emit an initial voltage, which is proportional to the
product of magnetic field strength and current (Hall Effect). They are named
after their inventor Edwin Hall.
Pedal Assist ensor (PA )
In an electric bicycle, the PAS measures if the crank is moving in riding
direction. This information will be passed on the controller which then activates
the motor to support the rider. The PAS can distinguish between forwards and
backward movements of the crank.
Torque ensor
The torque sensor measures the force generated by the rider when pushing
into the pedals. Our sensor measures values between 1 to 80kg and applies
motor support according to the selected PAS level.
Re erences
Ref (1): Ministry of Health NZ, Website
Notes:
19
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