a2b Ferber User manual

1Owner’s Manual Ferber

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Contents
1.0 Introduction 4
2.0 Important Information 5
3.0 Your A2B 6
4.0 Understand your A2B 11
5.0 Battery use, storage and disposal 20
6.0 Important Pre-ride Safety Information 24
7.0 Maintenance 28
8.0 Cleaning 32
9.0 Trouble Shooting 33
10.0 Technical Information 34
11.0 Warranty & Security Details 35
12.0 Disposal 37
13.0 Maintenance schedule 37
14.0 Owner registration 45

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Owner`s manual
1.0 Introduction
Welcome and congratulations on buying your new A2B Ferber*, the electric bike that’s taking transport in a whole new direction. 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, 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!
This manual refers to the design of A2B Ferber. Graphical representations may vary from your product.
Hero Eco
www.wearea2b.com
*A2B Ferber is termed as ‘A2B’ throughout the rest of this manual.
A2B Global Head Office
Hero Eco Ltd
80 Coleman Street
London EC2R 5BJ
Germany
Hero Eco Ltd
Reichenberger Strasse 124
10999 Berlin
USA
Hero Eco Inc.
207 9th St.
San Francisco, CA 94103

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2.0 Important information
This owner`s manual contains important safety, performance and service information. Please ensure you read this thoroughly
before your first ride.
Your A2B should be fully assembled and the battery charged by your A2B dealer prior to 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
reflectors on the wheels or integrated reflection stripes on the
tyres, and front and rear reflectors.
• 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 light or fluorescent 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.
This indicates a potentially hazardous situation, which if not avoided, may result in serious injury, property or equipment
damage or inadvertent system failure.
Refers to useful or other important relevant information.
If you have questions or do not completely understand any of the instructions in this owner's manual, please ask your A2B specialist dealer.
Important symbols

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Owner`s manual
1. Saddle (seat)
2. Seat post
3. Seat post quick release
4. Frame
5. Stem
6. Grips & Brakes
7. Display
8. Front fork
9. Headlight
10. Front brake
11. Quick release front wheel
12. Front wheel tyre
13. Front wheel rim
3.0 Your A2B
3.1 Components
14. Front mudguard
15. Pedal, crank arm and chain ring
16. Drive chain
17. Derailleur and freewheel
18. Motor
19. Rear wheel tyre
20. Rear wheel rim
21. Rear light
22. Rear mudguard
23. Sensor
24. Battery
25. Rear rack
26. Rear brake

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SHIMANO
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Owner`s manual
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 A2B dealer.
Read, understand and follow the instructions that accompany the
component or accessory you purchase for your A2B.
As with all mechanical components, the bicycle is subjected
to wear. 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 A2B dealer.
Failure to conform with compatibility, proper installation, operation
and maintenance of 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 Hero Eco 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 A2B 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 your riding position.
3. Tighten up the bolt underneath, ensuring the brake lever is firmly
fixed in place.
Should you need to adjust the brakes themselves, please take
your A2B to an A2B dealer to make the required adjustments.

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3.4 Handlebar adjustment
1. Loosen the bolts (A) using an appropriate allen key.
2. Position the handle bar symmetrically to the bar stem.
3. Turn the handle bar to the desired angle.
4. Tighten the bolts consistently to 12 Nm.
3.5 Display adjustment
1. Loosen the bolts (B) using an appropriate cross-head screwdriver.
2. Position the display to the desired angle.
3. Tighten the bolts consistently.
3.6 Bar stem adjustment
1. Loosen bolt (C) using an appropriate allen key.
2. Once loose, align the stem with the front wheel.
3. Once aligned, tighten the bolt (C) to 15 Nm.
3.7 Change the angle of the adjustable stem
1. Loosen bolts (D) using an appropriate 5 mm allen key.
2. Position the stem to the desired angle.
3. Tighten bolts to 15 Nm ensuring the stem is aligned to the front
wheel.
E
D
C
B
A
Caution: The handlebar stem is an A-head stem, the top screw
E is preloaded with 1-2 Nm and does not adjust the handlebar
stem. Trying to tighten bolt E can damage the head set bearings.
Failure to correctly secure the handle bar and 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 A2B dealer.

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Owner`s manual
frame height frame height
Inside leg height
Inside leg height
Frame height
3.8 Adjustment of the seat height
he 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.
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
1 inch / 2.5 cm
clearance