Ultra motor A2B Hybrid User manual

owner’s manual

Content
1.0 Introduction
2.0 Important Information
3.0 Your A2B
4.0 Understand your A2B
5.0 Battery use, storage and disposal
6.0 Important Pre-ride Safety Information
7.0 Maintenance
8.0 Cleaning
9.0 Trouble Shooting
10.0 Technical Information
11.0 Warranty & Security Details
12.0 Disposal
Owner registration
p. 2
p. 3
p. 4-8
p. 9-14
p. 15-19
p. 20-22
p. 23-28
p. 29
p. 30
p. 31
p. 32-33
p. 33
p. 34

2
1.0 Introduction
Welcome and congratulations on buying your new A2B Hybrid*, the electric bike that’s taking transport in
a whole new direction.
Your bike will give you the freedom to go your own way.
It’s the new revolutionary way to get to work, pop to the shops or just get some fresh air.
Compared to jumping in the car, it’s a lot more fun, easier to park and will reduce your fuel costs as
well as your impact on the environment... as you’ll soon nd out!
The Ultra Motor Team
Ultra Motor UK Ltd.
Unit 37 Lansdown Industrial Estate
Off Gloucester Road
Cheltenham
GL51 8PL
www.ultramotor.com
*’A2B Hybrid is termed as ‘A2B’ throughout the rest of this manual.

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owner´s manual
2.0 Important information
This owner`s manual contains important safety, performance and service information.
Please ensure you read this thoroughly before your rst ride.
Your A2B should be fully assembled and the battery charged by your Ultra Motor dealer at the time of delivery.
If not contact us immediately as this will void your warranty.
Please ensure that all users of your A2B read and understand the following important information.
• According to national rules a bicycle has to be equipped
with two independently working brakes, a bell, head
light, tail light, side reectors on the wheels or integrated
reection stripes on the tyres and front and rear reectors.
• The A2B is designed for public road use. Don‘t ride off-
road, in water and don‘t use the A2B to jump in bumby
terrain or for competition events.
• We recommend that you always wear an approved
cycle helmet at all times and light or uorescent
clothing at night when riding the A2B.
• Make sure you know and practice the rules of safe and
responsible riding. There is always a risk of serious / fatal
injury or damage as a result of an accident while riding
an A2B. By choosing to ride the A2B you assume
responsibility for that risk.
• Your existing insurance policies may not provide
accident cover for your A2B. Contact your insurance
company or agent for information.
• UK Law requires that you MUST be at least 14 years old
to ride an A2B.
• This owner’s manual makes no representation about the
safe use of the A2B under all conditions.
Important symbols
This indicates a potentially hazardous situation which, if not avoided, could result in a serious injury,
property damage or damage to equipment or inadvertent system failure.
Provides helpful or other important related information.
If you have any questions or are not sure about any instructions in this owner manual ask your Ultra Motor dealer or call our
Customer Services Department on [email protected].

4
3.0 Your A2B
3.1 Components
HYBRID
1
3
5
2
6
7
8
11
17
12
16
15
13
14
19
18
21
22
24
9
4
10
20
23
1. Saddle (seat)
2. Seat post
3. Seat post clamp
4. Frame
5. Headlight
6. Front mudguard
7. Front wheel/tyre
8. Front wheel rim
9. Quick release
10. Front disc brake and rotor
11. Pedal, crank arm and chain ring
12. Drive chain
13. Derailleur and freewheel
14. Motor
15. Rear wheel rim
16. Rear wheel/tyre
17. Kick stand
18. Tail light
19. Rear mudguard
20. Reector
21. Battery
22. Luggage carrier
23. On/Off switch and charger port
24. Battery connector

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owner´s manual
3.1 Components
25
28 29
30
27
26
31
25. Right brake lever
(operates rear brake)
26. Left brake lever
(operates front brake)
27. Display
28. Gear shifter
29. Right pedal
30. Left pedal
31. Battery lock

6
3.2 Changing components or adding accessories
Before installing any component or accessory, including a
different tyre, make sure that it is compatible with your A2B
by checking with your Ultra Motor dealer.
Read, understand and follow the instructions that
accompany the component or accessory you purchase
for your A2B. Follow the component manufacturer’s
instructions if they conict with these instructions.
As with all mechanical components, the bicycle is
subjected to wear and high stresses. Different materials
and components may react in different ways to wear or
stress fatigue. If the design life of a component has been
exceeded, it may suddenly fail possibly causing serious
or fatal injuries to the rider. Any form of crack, scratches
or change of colouring in highly stressed areas, such as
frame, fork and handle bar, indicates that the life of the
component has been reached and it should be replaced
immediately by an Ultra Motor dealer.
Failure to conrm with compatibility, proper installation,
operation and maintenance components or accessories
can result in serious or fatal injury.
Using non-genuine components or replacement parts
may compromise the safety of your A2B and void the
warranty.
If you change components or add accessories, you
do so at your own risk because Ultra Motor may not have
tested that component or accessory for compatibility,
reliability or safety on your A2B.
3.3 Brake lever adjustment
Can you comfortably operate the brakes? If not, take your
A2B to an Ultra Motor dealer and ask them to adjust the
angle of the brake levers.
Alternatively, follow the instructions below to adjust the
brake lever angle:
1. Loosen the bolt underneath the brake lever with an
appropriate allen key.
2. Adjust the angle to suit.
3. Tighten up the bolt underneath, ensuring the brake lever
is rmly xed in place.
Should you need to adjust the brakes themselves,
please take your A2B to an Ultra Motor dealer to make the
required adjustments.

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owner´s manual
Frame Height
2.5 cm / 1 inch
Clearance
Inside Leg Height
HYBRID
HYBRID
Rahmenhöhe Rahmenhöhe
Innenbeinhöhe
3.4 Seat height adjustment
The seat height may require adjustment. Ask your Ultra
Motor dealer to adjust it before you ride, however to adjust
the seat yourself follow these instructions:
To determine the correct height of the seat for the rider
1. Straddle the assembled A2B with your feet
shoulder-width apart and at on the ground.
2. There must be at least 25 mm/1 inch clearance be-
tween the frame height (1) and the inside leg measure-
ment of the rider (2).
Height adjustment
1. The seat height can be adjusted with an appropriate
allen key by loosening the seat post fastening bolt.
2. After adjustment, check to ensure the bolt is tightly
fastened. DO NOT raise the seat beyond the ‘minimum
insertion’ mark on the seat pillar.
3. The seat post clamp should be secured at 10-12 Nm.
4. Ensure the seat clamp bolt (seat pillar - seat post) is
tightened to 27 Nm.
5. After adjustment, ensure there is no movement in the
seat position in any direction.
Failure to correctly secure the seat can result in serious
or fatal injury.
• This owner’s manual makes no representation about the
safe use of the A2B under all conditions.

8
3.5 Handlebar adjustment
1. Loosen the bolts A using
an appropriate allen key.
2. Position the handle bar
symmetrical to the bar stem.
3. Turn the handle bar to the
desired angle.
4. Tighten the bolts consistently
to 6 Nm.
3.6 Bar stem adjustment
Handlebar stem alignment
1. Loosen bolt B using an
appropriate allen key.
2. Once loose, align the
stem with the front wheel.
3. Once aligned, tighten
the bolt B to 17-18.5 Nm.
Change the angle of the adjustable-rise stem
1. Loosen bolt B using an
appropriate allen key.
2. Position the stem to the
desired angle.
3. Tighten bolt B to 17-18.5
Nm ensuring the stem is
aligned to the front wheel.
Caution: this is an A-head stem, the top bolt C is a pre-load
and does not adjust the handlebar stem.
Failure to correctly secure the bar stem can result in
serious or fatal injury.
Ensure there is no play in the steering and that the
steering is working smoothly.
Should you need further advice to adjust the headset,
please contact your Ultra Motor dealer.
A
B
C
B
C

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owner´s manual
4.0 Understanding your A2B
After having read this section, if you are still unsure, please ask an Ultra Motor dealer to explain any functions or features
that you do not understand before your rst ride.
4.1 A2B Overview
The A2B has a ’true pedal assist’ function, this means
the motor engages only when the rider is pedalling. So
you can get places under your own steam yet have
the comfort of the electric motor giving you that extra
boost along the way.
The A2B is equipped with a Torque Sensor, which means
as soon as you start to pedal, you’ll feel the motor kick
in to complement your pedalling – making riding an
effortless pleasure.
4.2 Starting and stopping
1. Put your helmet on and select a quiet area away from
cars, other cyclists, obstacles or other hazards.
2. Make sure that the battery is fully recharged.
3. Power ON the electronic system by turning the battery
power on.
4. Select your prefered assist level mode (see 4.3).
5. Raise the kickstand into the riding position.
DO NOT sit on the A2B while it is supported by the
kickstand, you will damage the kickstand and, possibly
the frame.
6. Mount your A2B and get comfortable.
7. Apply motor power by pedalling the A2B.
8. Test the brakes at slow speed. The right brake lever
actuates the rear brake and the left brake lever
actuates the front brake. Applying brakes too hard can
lock up a wheel, which could cause you to lose control
and fall.
Remember that there are power cut-off switch es
embedded into the brake levers. When you apply the
brakes, power to the motor will turn OFF. Therefore, do
not hold the brake levers when you want the motor to
run.
9. Check out the handling and response of your A2B.
Familiarise yourself with how the suspension responds to
application of the brakes and shifts in rider weight.

10
4.3 Display
A– Battery State-of-Charge
Indicator (every symbol
represents +/- 20% of the
battery capacity. If the battery
level will drop below 10% the
last symbol will start ashing.
And if the battery level will
drop below 5% the symbols will
switch off completely).
The State-of-Charge will be displayed after a few
seconds after turning on the power.
B– Speedometer - displays in steps of 0.1 km/h or 0.1 mph
C– Odometer / Tripometer - displays km or miles pedalled,
this could be your total or your trip distance measured to 10
meter or 0.01 mile.
D– Lights – activates the backlight on the display and the
lights. Repressing this button will turn on and off the lights
and the backlight on the display.
The A2B is equipped with a daylight sensor, this will
enable the backlight to switch on automatically. The sensor
has a delay of +/- 3 seconds and will only activate when
cycling. Stopping at a trafc light will not interrupt your
backlight, if you stop cycling for more than 5 minutes it will
be switched off automatically.
E– Info – switches between ODO and TRIP display, the
default display is the ODO or total value. To reset the Trip,
press the Info button for more than 3 seconds.
F– Mode – adjusts the level of power assistance. The default
level of power assistance is 0.
F– Mode – switches between km and miles display. To
switch between km and miles press the Mode button for
more than 5 seconds.

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owner´s manual
Pressing the mode button will increase the amount of power
assistance. Once at power assistance level 3 – shown by
3 symbols on the display (F), if pressed again – no symbols
will appear, this indicates there is no power assistance. Re-
pressing the mode button will re-enable the power assistance
at level 1, pressing again will enable power assistance level
2.
Note: pressing Mode if you are on power assistance level
3 will not immediately disable the power assistance, this is
to enable the switch smoothly between level 3 and level 1,
without interrupting the assistance.
Power assistance 0 – No power assistance, all display
functions will work.
Power assistance 1 – Minimal power assistance, ideal for
saving battery capacity, maximum distance.
Power assistance 2 – Normal power assistance, normal
power, average distance on battery load.
Power assistance 3 – Extra power assistance, maximum
power, least distance on battery.
If the A2B is not used for 10 minutes the power assistance
will be switched off automatically.
Calibrating Procedure
The mounted display must be calibrated after unpacking the
bike or if error code 15 occurs. This can be done by pressing
the Mode button and the Light button simultaneously for
+/- 3 seconds. The ODO Metre will display ‘CAL’ and the
Speedometer will show a value (Mostly between 66 and 400)
after 5 seconds the display will go to its standard screen.
Error Codes
If an error occurs, the warning sign (!) will indicate that an
error has occurred and display the following codes:
10 Missing adequate display signal,
check cables and display
connections.
11 No speedometer signal, check
cables or motor jammed.
12 Daylight sensor defect, replace
display.
13 Battery too low, recharge
battery.
14 Brake handle failure.
15 Display not calibrated, follow calibration procedure.
16 Power-surge to motor.
17 Display error, replace display.
18 Memory failure, resetting all stored values.
km/h
kmodo
MODE
i
MODE
i
km/h
kmodo
MODE
i
EFG
F
C
D
A
B
km/h
kmodo
MODE
i

12
4.4 Gears
Your A2B has a rear derailleur controlled by the gear shifter on
the right side of the handlebar.
To shift gears, pedal at a
steady pace and push
the shift lever A or B until
you nd the gear most
comfortable for you and
the current conditions.
To make pedalling easier
(when encountering a
hill), push up lever A in
riding direction to down-
shift, this will also make you
pedal faster to achieve
any given speed. Push
up lever A against stop to
down-shift two gears at
once.
To ride faster (on a at
section or a downhill),
push up lever B towards
you to up-shift, allowing
you to pedal more slowly
for a given speed, but
with more effort required.
Never pedal backward while shifting gears. The chain could
derail and you could lose control, resulting in an accident that
could cause serious or fatal injury and/or property damage.
Always pedal forward at a steady pace when shifting gears.
The rear derailleur operates independently of the motor.
Using the derailleur control, adjust the gear setting to
nd a gear that makes pedalling comfortable while
assisting the motor.
4.5 Light
To switch the light on and off press the light button on the
display (see 4.3) and twist the switch on the head light to on
or off position.
1
8
A
B
B
A

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owner´s manual
4.6 Luggage Carrier
Your A2B equipped with a durable luggage carrier. In case
you need to carry luggage or any goods with your A2B, please
carefully read the enclosed instructions before using the
luggage carrier.
1. The luggage carrier is attached to the rack tube of your A2B
by 4 x T25x18 torx at head screws. If you are frequently using
the luggage carrier, always check that the screws are secured
tightly at torque value 6-8 Nm.
2. The maximum weight that could be carried is 10 Kg.
3. Please ensure that the luggage is fastened securely, so that it
can not fall off while riding. Take care that loose straps or other
itms can not get caught by the spokes or wheels while riding.
4. The luggage carrier is not designed for carrying a second
rider for the attachment of a child seat. It should also not be
used to pull a trailer.
5. The permissible load of your A2B should not be exceeded,
please refer to the specication section in the owner’s manual.
6. Do not modify the luggage carrier in any case of usage.
7. Distribute the weight of your luggage or goods evenly
between the two sides of the luggage carrier.
8. Please be aware when the luggage carrier is loaded, your
A2B may behave differently, especially when steering or
braking the bike.
9. Once you have attached your luggage to the luggage
carrier, please be aware that rear light and reector may be
obscured by your luggage.
Failure to observe these instructions can result in serious
or fatal injury.

14
4.7 At the end of your ride
If you have any questions, or if you feel anything about your
A2B is not as it should be, ask your Ultra Motor dealer before
you ride again.
4.8 Your range
Factors affecting range:
• Pedal assist mode
• Battery state-of-charge
• Use of gears appropriate to speed
• Tyre ination pressure
• Front wheel bearings and both brakes (tight bearings or a
dragging brake shoe reduces range)
• Rider weight (it takes more energy to accelerate a heavier
person)
• Your speed and wind conditions (range is reduced when
pedalling hard against a high wind)
• Terrain (travelling on a soft surface or climbing a hill uses
more power)
• Frequent starts and stops (full power from a standing start
draws the most amperage from the battery)
Maximise your range
• Fully charge your battery before each ride
• Check tyre pressure regularly and inate to the pressure
of 3.5 bar (51 psi) for front tyre and 4.0 bar (58 psi) for rear
tyre
• Have your A2B serviced periodically to ensure that the wheel
bearings turn freely and both brake discs do not bind the
brake shoes when the brakes are not applied
• Minimise the weight that you carry
• Ride at slower speeds
• Use the economy mode as much as possible and
support the motor by pedalling with your own power
• Keep the chain and derailleur lubricated with bicycle rec-
ommended chain spray

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owner´s manual
5.0 Battery use, storage and disposal
5.1 The battery & charger
Use only the battery
supplied with your A2B
or a battery provided
by Ultra Motor as a
replacement for the
battery supplied with your
A2B. Use of any battery not
supplied with your A2B WILL
void the warranty and may
cause damage to the electrical system and the hub motor.
Improper use and poor storage of this battery will void the
warranty and may cause serious or fatal injury or other
hazardous situation including re and property damage.
Improper use includes: using this battery with any other
vehicle or appliance, subjecting the battery to intense
physical shock or severe vibration, creating a short circuit of
the discharge terminals of the battery.
Poor storage includes: storing near excessive heat and/or
open ames, long term exposure to sunlight.
Use only the battery charger supplied with this battery. Use
of any other battery charger will void the warranty and may
cause damage to the battery, serious or fatal injury and/or
other hazardous situation.
Improper use of this battery charger battery will void the
warranty and may cause serious or fatal injury or other
hazardous situation including re and property damage.
Improper use includes: blocking the fan vent on the charger
whilst the battery is charging as this will cause overheating,
subjecting it to intense physical shock or severe vibration.
This battery charger supplied with this battery is for INDOOR
use only.
Avoid any contact with water or other uids. If the battery,
charger or any connections become wet, immediately
unplug the charger and thoroughly dry all components
prior to charging the battery.

16
5.2 Charging the battery
Your Ultra Motor dealer should provide a fully charged
battery upon delivery of your A2B, should this not be the
case, please ensure that prior to its rst use, you charge
the battery supplied with your A2B for at least 12 hours.
1. Check the Voltage Selector
switch on the charger to ensure that
it is set to your local voltage (230 V
for Europe).
2. Plug the charger into the wall
outlet , ensuring the charger is
turned OFF.
3. Ensure that the battery Power
Switch 1 is switched OFF before con-
necting the charger to the battery.
4. Rotate the charger port cover to
expose the charger socket 2.
5. Carefully align the connector pins
and connect the charger to the
battery by plugging the connector
into the charger socket.
6. Turn ON the charger using the
ON/OFF switch on the charger.
7. LED Indications:
• The Power LED will illuminate RED
when the charger is plugged into a
wall outlet and the ON/OFF switch is
in the ON position.
• The Indicator LED will illuminate AMBER while the
charger is charging the battery.
• The Indicator LED will change to GREEN when the
battery is fully charged.
8. When charging is complete (the Indicator LED is GREEN),
turn OFF the charger using the ON/OFF switch on the
charger.
9. Unplug the charger from the wall outlet then carefully
unplug the charger from the battery pack by pulling the
connector out of the charger socket.
10. Rotate the charger port cover clockwise or counter
clockwise to cover the charger socket.
11. Your battery is now ready for use.
FUSE
6
7
12
3
5
12
3
21
3
2
4
1
NOTE: The battery will not take a charge if you
connect the battery when the charger is switched on.

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owner´s manual
5.3 Battery charging
Charging times Hours
Before using battery for rst time 12
Fully discharged 4 - 6
To maximise battery life, recharge as soon as possible after
every use.
Avoid leaving the battery charger ON and plugged
into your battery for more than 12 hours at a time. Once
the battery is fully charged, turn OFF the charger and
unplug it from the pack.
Avoid charging the battery at a temperature lower
than 0 °C (32 °F) or over 40 °C (104 °F). If possible charge
the battery at room temperature.
You may recharge the battery at any time, re-gardless
of its state-of-charge. As your battery ages, it will gradually
lose capacity. With proper care and maintenance, your
battery will retain up to 80% of its capacity over at least 500
discharge/recharge cycles. As capacity diminishes, you will
notice a gradual drop-off in maximum range capability. When
range falls to an unacceptable level, contact your Ultra Motor
dealer for a replacement battery.
Low battery charge
The motor controller and battery management system
(BMS) are designed to turn off the power to the motor
when the voltage of the battery drops to a predetermined
point. This is to protect the battery from the harmful effects
of over-discharge.
When the power turns off due to a low battery, plug
the battery into the charger supplied with your A2B to
recharge the battery within 3 days. It will take 4 - 6 hours to
fully recharge a completely discharged battery.
If you have any questions about this battery or its usage,
contact our Customer Services Department.
Never attempt to use remaining power once the
BMS has switched off the battery. You will damage
your battery.

18
5.4 Attaching and connecting the battery to your A2B
Prior to its rst use, charge the battery supplied with your A2B for
at least 12 hours.
1. Align the key to the slot of the
battery lock and insert the key.
2. Press the key carefully down.
3. Turn the key in any direction 180°
till the lock snaps out. Remove the
key.
4. Carefully align the battery
to the battery rails under the
luggage carrier and attach the
battery by pushing the battery
in riding direction against the
stopper.
5. Connect the battery to the
A2B via the large connector.
Carefully align the tab and pins
of the connector to the socket
on the battery and plug in.
Tighten onto the thread.
6. Make sure that the battery
is attached correctly and lock
the battery by pushing down
the head of the lock till it snaps.