a2b Obree User manual

1
Owner’s manual Obree

1.0 Introduction 4
2.0 Important information 5
3.0 Your A2B 6
4.0 Please familiarise with the functions of your A2B
before your first tour 12
5.0 Operating instructions display and motor 16
5.1.1 Important instructions – please observe in any case! 16
5.1.2 Intended use of the neodrives components 16
5.1.3 Admissible operating conditions / places of use 17
5.1.4 Standard scope of supply 17
5.1.5 Technical data 18
5.2. Controller 20
5.3. smart Man-Machine Interface (sMMI) 20
5.3.1 Fitting and removing the sMMI 22
5.3.2 Functions of the sMMI 23
5.3.2.1 Switching on and off 23
5.3.2.2 Start menu 24
5.3.2.3 Dynamo function and switch-on routine "light“ (optional) 25
5.3.2.3 Selection of the assistance level 25
5.3.2.5 Activation of recuperation 26
5.3.2.6 Braking assistant 27
5.3.2.7 Walk assist / Walk assist button 28
5.3.2.8 Date and time 30
Contents
5.3.2.9 Assist mode 30
5.3.2.10 Display of travelling information 31
5.3.2.11 Display of information and warnings 32
5.3.2.12 Easy Display mode 33
5.3.2.13 Other settings 33
5.3.2.14 USB port 34
5.3.2.15 Programming options by the specialist dealer 34
5.3.2.16 Firmware updates and their transmission 35
5.3.2.17 Information on the sMMI plugs 36
5.4. Thermal management 36
5.5. Motor 38
5.5.1 Removal of the drive wheel 38
5.5.2 Attachment of the drive wheel 40
5.6. Cleaning of the motor and sMMI 41
5.6.1 Motor 41
5.6.2 sMMI 42
5.7. Transport 42
5.8. Warnings 42
5.9. Error indications and possible remedies 42

3
6.0 Operating instructions battery 44
6.1.1 Important instructions - please observe in any case. 44
5.1.2 Intended use of the neodrives components 44
6.1.3 Admissible operating conditions 45
6.1.4 Standard scope of supply 45
6.1.5 Technical data 45
6.1.6 Main elements at a glance 46
6.2. Safety instructions and warnings 47
6.2.1 on the use of the battery 47
6.2.2 on the storage of the battery 48
6.2.3 on the charging process 48
6.2.4 on the transport and dispatch 49
6.2.5 on the charger 49
6.3. Startup 51
6.3.1 Information on the operating modes 51
6.3.2 Insertion of the battery 51
6.3.3 Switch-on of the battery 52
6.3.4 Display of the state of charge 52
6.4. Removal of the battery 53
6.4.1 Switching off the battery 53
6.4.2 Removing the battery 53
6.5. Charging the battery 54
6.5.1 Connecting the charger 54
6.5.2 Charging process 54
6.5.3 LED indications during charging process 55
6.6. Keys 56
6.7. Cleaning the battery 56
6.8. Disposal 56
6.9. Liability 56
7.0 Important safety instructions before your first tour 57
8.0 Maintenance 60
9.0 Vehicle cleaning 66
10.0 Technical data 67
11.0 Warranty and safety information 68
12.0 Disposal 70
13.0 Maintenance schedule 70
14.0 Product registration 78

4
Owner’s manual
1.0 Introduction
Welcome and congratulations on buying your new A2B Obree, the
electric bike that’s taking transport in a whole new direction. It’s the
revolutionary way to get to work, visit the shops or just get some
fresh air. Compared to jumping in the car, an ebike is 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 find out! Feeling energetic?
You can ride your new A2B Obree powered off and then switch
the assistance on for hills and headwinds. We dedicated our new
bikes to pioneers that redefined the way we do things in the modern
World. As a tribute, the A2B Obree bike was named after Graeme
Obree who took the limits of the hour record in track cycling to an
unprecedented level through his radical bicycle construction designs.
WARNING
• Wear light fluorescent clothing at night.
• Your existing insurance policies may not provide accident cover
for your A2B Obree. Contact your insurance company or agent
for information.
• This owner’s manual makes no representation about the safe
use of the A2B Obree under all conditions. See your A2B dealer
for all service, repairs or maintenance and for referral to suitable
classes, clinics and books on cycling.
1.1. Intended use of your A2B
Your A2B equipped with the neodrives drive system is a Pedelec
(Pedal Electric Cycle) for usual transport of one person in public road
traffic. Any adjustments and repairs of the A2B and its components
will only be regarded as intended use as far as they are described
and permitted in these operating instructions, the instructions from
the component manufacturers or any further documents provided
upon purchase of the Pedelec. The manufacturer does not assume
any liability for damage caused negligently due to misuse, improper
use, improper or omitted maintenance or repairs. The driver is
responsible for checking the Pedelec as prescribed, having any
necessary works carried out and using it appropriately.
These operating instructions describe the use of your A2B and
its components and correspond to the state of the art at the time
of printing. The manufacturer reserves the right to make changes
resulting from the further development of mechanics, the software or
from any statutory requirements.
UK office
Hero Eco Ltd
80 Coleman St
London
EC2R 5BJ
www.wearea2b.com
*’ The A2B Obree electric bicycle is here in after in short referred to as ”A2B”.
US office
Hero Eco, Inc.
207 97th St.
San Francisco,
CA 94103
USA
German office
Hero Eco Ltd
Reichenberger Strasse 124
10999 Berlin
Germany

5
2.0 Important information
This owner’s manual contains important safety, performance and service information. Please ensure that users of your A2B
Obree read and understand the following important warnings and cautions before their first trip. If you have any questions or
are not sure about any instructions in this owner’s manual ask your A2B dealer. Read and understand the following warnings
and cautions. If your A2B Obree is used by others, please show this section to them so that they are aware of these important
warnings to reduce the risk of an accident. Important terms. Throughout the manual, the following symbols and terms call your
attention to important warnings, cautions and notes. Read, understand and follow them whilst using your A2B Obree.
Please ensure that all users of your A2B read and understand the following important information.
Important symbols
Indicates a potentially dangerous situation which may lead to a severe injury, material or equipment damage or unwanted system
failure if this situation is not prevented.
Indicates useful or other important, relevant information.
If you have any questions or do not understand particular instructions of this user manual, please ask your A2B specialist dealer or contact
our customer service using A2B.U[email protected].
• According to the Straßenverkehrszulassungsordnung (StVZO)
[Road traffic approval regulations], a bicycle must be equipped
with two operative brakes which are independent of each other,
a clearly audible bell, headlamp, rear lamp, pedal reflectors, side
reflectors for wheels or integrated reflective strips on the tyre and
front and rear reflectors.
• Your A2B is suitable for riding on pavements and cycle highways
and paths. Therefore, do not ride beyond paved ways or off-road. Do
not use the A2B across water, for off-road jumps and sports events.
• We recommend to always wear an approved bicycle helmet when
using the A2B and to additionally wear light or reflective clothes
at night.
• Make sure that you know and observe the rules of behaviour
for safe and responsible cycling. When riding the A2B, there is
always a risk of severe / fatal injuries or material damage resulting
from an accident. By deciding to ride the A2B you assume the full
responsibility for this risk.
• Your current insurance policies might not include accident
insurance coverage for using the A2B. Please ask your insurance
or insurance agent concerning this matter.
• This user manual does not express any guarantee as to the safe
use of the A2B under all conditions.

6
Owner’s manual
3.0 Your A2B
3.1 Components
1
2
323
5
6
8
18
10
9
13
12
14
11
16
15
17
20
24
21
7
4
22
19
1. Saddle (seat)
2. Saddle post
3. Quick release
4. Front splash guard
5. Front tyre
6. Front wheel rim
7. Front disk brake and rotor
8. Pedals, pedal crank and chainring
9. Chain
10. Motor
11. Stand
12. Rear wheel rim
13. Rear tyre
14. Derailleur and freewheel
15. Reflector
16. Rear splash guard
17. Battery
18. LED rear light
19. Z reflector on battery
20. Battery plug
21. Frame
22. sMMI
23. Headlamp
24. Quick release front wheel

7
3.1 Components A. Right-hand brake lever
(for rear wheel brake)
B. Left-hand brake lever
(for front wheel brake)
C. Shift lever
D. Right pedal
E. Left pedal

8
Owner’s manual
3.2 Replacement of components, fitting of accessories
Before mounting any components or accessories (including
different tyres), you should ask your certified A2B specialist dealer
if they are appropriate for your A2B.
Please read and observe the instructions for the respective
components or accessories you have bought for your A2B. Please
observe the manufacturer's instructions for the components or
accessories if they are different from these instructions.
As all mechanical components your A2B is subject to wear and
tear as well. Especially in case of high strain, the user must watch
out for wear and tear. If a component's life cycle is exceeded, this
component may suddenly become inoperative leading to severe
or even fatal injuries. Therefore, please watch out for signs of wear
and tear, such as cracks, scratches and changes of colour in spots
which are subject to high strain, e.g. on the frame, fork, wheels and
handlebars, indicating that the life cycle has been completed or
even exceeded. Have worn components replaced immediately by
your specialist dealer.
If you do not check components or accessories for fitness and
mount, use and maintain them properly, this may lead to severe or
even fatal injuries.
The use of non-original components or spare parts may
endanger your A2B's safety and void the warranty.
The replacement of components or fitting of accessories will be
made at your own risk, since the fitness, reliability or safety of these
parts for use with your A2B may not have been checked by Hero
Eco.
3.3 Adjustment of brake levers
Are you able to easily operate the brake levers? If not, take your
A2B to an A2B specialist dealer to have the brake levers' angle
adjusted.
Alternatively, you may adjust the brake levers' angle on your own as
indicated below:
1. Loosen the screw below the brake lever using an appropriate
Allen key.
2. Adjust the angle as required.
3. Tighten the screw and make sure the brake lever is retained
securely in place.
For adjustment of the brakes, you should take your A2B to an
A2B specialist dealer.

9
3.4 Adjustment of the seat height
The seat height may have to be adjusted. Please ask your A2B
specialist dealer to adjust the seat height before your first tour. You
may also adjust the seat height on your own as indicated below:
Determination of the correct driver's seat height
There are several ways of determining the correct seat height; the
method which can be carried out without any further auxiliary means
is described in the following: Sit on the saddle and stretch one leg.
Put your foot's heel on the pedal which is on the lowest point of the
crank turn. Your knee should now be almost straightened.
If you are sitting straight on the saddle while having this position,
the saddle's height is correct.
Of course, you then do not drive with legs stretched. If you put your
foot on the pedal while having the correct driving position (ball of
foot and metatarsophalangeal joint above the pedal axle), the knee
will remain slightly angled also on the lowest point of crank turn if
the saddle height has been adjusted correctly.
A short test ride is recommended to find out if the saddle is too high.
If the pelvis tilts to the right and the left in the rhythm of pedalling, the
saddle is too high. If the saddle is too low, you will usually find it out
only after many kilometres through pain in the knees.

10
Owner’s manual
Height adjustment
1. The seat height can be adjusted by loosening the quick release
for the saddle post.
2. Position the saddle at the desired height. Do NOT position the
saddle higher than the minimum insertion mark located on the
saddle post BY NO MEANS.
3. Push the lever of the quick release towards the frame, until it will
be closed again. The lever must not stick out to avoid danger
of injuries. The lever is safely attached if you must use efforts
to push it into the closed position. The efforts are appropriate if
the lever leaves a mark on the palm of your hand when pressing.
A properly closed quick-release cannot be moved anymore
unless it is reopened as specified above. If you can move the
mechanism slightly, open the lever of the quick release, turn the
adjusting nut by another 180° and try again.
Frame Height Frame Height
Inside Leg Height
Frame Height
1 inch / 2,5 cm
Clearance
Inside Leg Height
4. After height adjustment, check if the saddle cannot be moved in
any direction.
An improperly attached saddle may lead to severe or even
fatal injuries. Ensure that the saddle clamp screw (saddle post -
saddle) has been tightened using 27 Nm.
• This user manual does not express any guarantee as to the safe
use of the A2B under all conditions.

11
3.5 Adjustment of the
handlebars
1. Loosen the screws A using an
appropriate Allen key.
2. Align the handlebars centrically
with respect to the stem.
3. Turn the handlebars to achieve
the desired angular position.
4. Tighten the screws A evenly
using 5 Nm.
3.6 Adjustment of the variable
stem
Alignment of the handlebars
stem
1. Loosen the screws B using an
appropriate Allen key.
2. Align the stem with respect to
the front wheel.
3. Tighten the screws evenly
using 15 Nm.
Angle adjustment of the stem
1. Loosen the screw C using an
appropriate Allen key.
2. Position the stem in the
desired angle.
3. Tighten the screw C to 17-
18.5 Nm und ensure the stem
is aligned with respect to the
front wheel.
Caution: This is an A-headset
stem, the upper screw D is a pretensioning screw and not intended
for adjusting the stem! Trying to tighten screw D may result in
damage of the headset.
An improperly attached handlebar and stem may lead to severe
or even fatal injuries.
Make sure the steering is free of play and can be operated easily.
Please contact your A2B specialist dealer if you need more help in
adjusting the handlebars, headset and stem.
A
CB
CB

12
Owner’s manual
4.0 Please familiarise with the functions of your A2B before your
first ride
If you still have any questions after having read this section, please ask your A2B specialist dealer before your first ride to explain
any unclear functions or features to you.
4.1 A2B at a glance
As soon as you start to pedal when the drive system is enabled,
you will realise that the motor will start and assist you based on
the adjusted level of assistance - making riding a bike an effortless
pleasure.
4.2 Starting and stopping
1. Put your helmet on and look for a calm place without any
obstacles, cars or other hazards, if possible.
2. Ensure that the battery has been charged and connected
correctly
3. Activate the drive system by pressing the
controller's middle button next to the left
handlebar grip.
4. Fold up the stand into the driving position.
Do NOT sit on the A2B if it is still
supported by the stand. By doing so, you
damage the stand and possibly the frame.
5. Sit on the A2B and find a pleasant sitting
position.
6. Start to pedal and start the motor assistance in this way.
7. Test the brakes at low speed. The left brake lever actuates the
front wheel brake, the right brake lever actuates the rear wheel
brake in most EU countries (break activation is the opposite of
stated). When pulling the brake levers too much, a wheel may be
locked which could make you lose the control over the bicycle
and fall. Remember that both brake levers include a motor
switch-off device; as soon as you operate one of the two brake
levers, the motor's power supply will be switched off. So do not
brake if the engine is to run.
Remember that both brake levers include a motor switch-off
device. As soon as you operate one of the two brake levers, the
motor's power supply will be switched off. So do not keep a brake
lever pulled if the motor is to run.
8. Try to handle your A2B and test its reactions. Become familiar
with how the suspension responds to the brakes being operated
by the driver and shifting of weight by the driver.

13
4.3 Gear box
Your A2B is equipped with a
derailleur actuated by the two
pressure levers at the right-
hand side of the handlebar.
To facilitate pedalling (e.g. at
gradients), you operate the
large lever located in front of
the handlebar and marked with
A in the drawing. In this way,
you shift down and have to
pedal faster to maintain your
speed. If you want to go faster
(in plain or downhill), you shift
up one gear using the smaller
lever which is marked as B
in the opposite figure and
located behind the handlebar
from the driver's point of view
and may pedal slowlier, but
you have to use more efforts.
Do not ever move the pedals backwards when shifting into
another gear. The chain might jump off and you might lose the
control over the bicycle which could lead to accidents with severe
or even fatal injuries and/or material damage. Always pedal evenly
and in forward direction when shifting into another gear.
A
B
The derailleur operates independently from the motor. Using the
derailleur, adjust a gear which enables pleasant pedalling and helps
the motor at the same time.
4.4 Lighting
Turn the on/off switch located on the headlamp into the respective
direction to switch on or off the lighting.

14
Owner’s manual
4.5 Luggage rack
The standard series of your bicycle model is not equipped with a
luggage rack, the CHARGER of your A2B, however, has a slot for
a luggage rack adaptor of Rack-Time. This adaptor may be ordered
by your A2B specialist dealer using the order no. 625450098300
and installed on the bicycle. This adaptor enables you to install
various options of luggage transport by Rack-Time. You may
choose either luggage baskets or a range of saddle bag solutions.
Alternatively, you may use the base plate and a standard luggage
rack of Racktime only. Please ask your A2B specialist dealer for
information on the various options and the best solution for your
needs. No matter which solution you choose, please observe the
following when transporting your luggage:
1. Your A2B's battery is equipped with an integrated LED rear
light. When driving at dusk or in the dark, please ensure that
your luggage is fixed in such a way that the rear light is neither
covered completely nor in part, since this involves a high risk of
not being noticed by other road users.
2. Make sure the luggage is safely attached on the luggage
rack and cannot fall down during the ride. Ensure that loose
tightening straps or other objects cannot get into the spokes
during the ride.
3. Observe the permitted maximum load of the vehicle's rear of
25 kg additionally with respect to the standard equipment.
Do not overload the luggage rack.
4. This vehicle is not designed or released for transporting a
second passenger, a child in a fitted children's seat or for pulling
a trailer.
5. The permitted total weight of your A2B must not be exceeded.
The permitted maximum total weight is indicated in the
specification.
6. Distribute the weight of your luggage or the objects to be
transported equally on both sides of the luggage rack.
7. Please remember that luggage or other loads present on the
luggage rack alter the handling of your A2B. This applies in
particular to steering and braking response.
Noncompliance with these notes may lead to severe or even
fatail injuries and/or material damage.

15
After your first tour
If you have any questions or the feeling that your A2B has not
yet been adjusted and adapted to you as best as possible, we
recommend to contact your A2B specialist dealer before using your
A2B again.
Your range
Factors influencing the range:
• Level of assistance
• Battery charge level
• Use of the correct gears for the respective speed
• Tyre pressure
• Front wheel bearing and both brakes (tight bearings or dragging
brake blocks reduce the range)
• Driver's weight (accelerating a heavy person requires more
energy)
• Your speed and the wind conditions (quick pedalling during
strong headwind reduces the range)
• Off-road (driving on soft areas or uphill requires more efforts)
• Frequent starting and stopping (full power from standing position
takes the most current from the battery)
Maximising your range
• Completely charge the battery before every tour.
• Check the tyre pressure regularly and apply a pressure of 2.8 bar
(front and rear tyre) to the tyres.
• Have your A2B maintained regularly to ensure that the wheel
bearings are running freely and the brake blocks do not drag at
the brake disks.
• Keep the total weight as low as possible.
• Drive at low speeds.
• Use the energy saving mode as often as possible and assist the
motor by pedalling on your own.
• Lubricate the chain and derailleur using a special chain spray for
bicycles.

16
Owner’s manual
5.0 Operating instructions Motor and Control unit Smart Man
Machine Interface (sMMI)
5.1.1 Important instructions
Please read all documents enclosed with your A2B and all notes
included in these operating instructions and on stickers available on
the vehicle.
5.1.2 Intended use of the neodrives components
Your A2B equipped with the neodrives drive system is a Pedelec
(Pedal Electric Cycle) for usual transport of one person in public
road traffic. Any adjustments and repairs of the A2B and its
components shall only be regarded as intended use as far as they
are explained and permitted in these operating instructions, the
instructions of the component manufacturers or further documents
provided upon purchase of the Pedelec. The manufacturer does not
assume any liability for damage caused negligently due to misuse,
improper use, improper or omitted maintenance or repairs. The
driver is responsible for checking the Pedelec as prescribed, having
any necessary works carried out and using it appropriately.
The following sections of these operating instructions only describe
the use of the neodrives components installed on your A2B and
correspond to the state of the art at the time of printing. The
manufacturer of the neodrives components reserves the right to
make changes resulting from the further development of mechanics,
the software or from the statutory requirements.
According to the manufacturer of the neodrives components,
misuse of the neodrives components installed on your A2B
includes the following, but is not limited to:
• Use of the drive system contrary to the instructions and
recommendations of these operating instructions
• Exceedance of the technical performance limits defined in the
present operating instructions
• Technical modifications of the neodrives components
• Modifications of the neodrives components' software
• Unauthorised installation or use of the neodrives components on
bicycles other than the A2B Pedelec supplied to you.

17
5.1.3 Admissible operating conditions / places of use
neodrives components may be operated at temperatures between
-10°C and 45°C.
Observe the safety instructions and hazard warnings included
in the single sections of the present operating instructions. The
restrictions of the admissible operating conditions (such as
maximum climbing power, admissible maximum obstacle height,
maximum user weight, etc.) contained herein have to be observed
when using the Pedelec! Observe the safety instructions and
hazard warnings included in the single sections of the present
operating instructions.
5.1.4 Standard scope of supply (neodrives components)
• Drive motor
• Smart Man Machine Interface (sMMI) = Control unit incl. dock

18
Owner’s manual
Smart MMI
Display control * Monochrome
Display diagonal size,
resolution
2.4 inches, 240 X 320 pixels
Dimensions sMMI without dock 53 mm x 85 mm x 14 mm (W
X L X H)
Connectivity Micro-B 1.1 USB, 5-volt power
supply, 500 mA connection
to PC, incl. diagnostic and
parameterisation software
Mechanical/electrical
contacting
Twist-to-lock, corrosion-proof
contacts, spring loaded
Lighting LED Backlight, 70 – 350 cd/
m²
Display plate Scratchproof, quenched and
tempered acrylic glass plate
Weight sMMI (detached) 55 g
5.1.6 Technical data
Drive
Range* Up to 120 km
Speed 25 km/h
Rated power (peak) 250 watts (650 watts)
Operating voltage 36 volts
Rated torque 12 Nm
Peak torque 40 Nm
Efficiency 80% (incl. electronics)
Control Power electronics Integrated in wheel hub
Cassette receiver Cassette receiver commercially
available plug-in cassette, incl.
9-fold transmission
Brake disk Diameter from 160 mm
Intake torque Variable torque support can be
adjusted to dropout
Weight 4.36 Kg (just drive, incl. plugs
and cable, without brake disk,
freewheel, cassette)

19
Smart MMI Dock
Controller 23 mm inside diameter, 3
buttons (up, down, menu),
permanently wired
Mounting plate Stem and handlebar mounting,
angle can be adjusted in 10°
steps, height can be adjusted
using spacers
Weight (incl. cable and remote
control)
60 g
Whole system
Operating temperature -10°C to 45°C (recuperation
and braking assistant,
respectively will be
automatically deactivated
below 0°C)
Protection class IP65
(*) The range varies depending on the battery used, the terrain and
the prevailing travelling conditions.
The specified range can be achieved at optimum travelling
conditions (e.g. even terrain, recently charged batteries, ambient
temperature of 20°C, smooth journey, etc.), a driving power of 100
watts and a pedalling power of 100 watts.
Subject to technical and design modifications based on continuous
further development.
These operating instructions can also be downloaded from our
website www.weareA2B.com.

20
Owner’s manual
5.2. Controller
The controller fitted to the handlebar of your
A2B is used to access menus
and activate functions in the sMMI. The
following functions are stored:
Button 1 = UP (one step upwards)
Button 2 = confirm menu button or
selection
Button 3 = DOWN (one step downwards)
5.3. Smart Man-Machine Interface (sMMI)
The sMMI is fitted to your Pedelec's
handlebar or stem. You may access various
functions, activate or deactivate parameters
using the controller's buttons (see section
2). For some functions you may also
permanently store various parameters in the
software of the sMMI (see section 3.2.15).
Please contact your specialist dealer
regarding this matter, they will be happy
to inform and advise you. The following
contains an overview of the menu structure
of the sMMI for further information.