Bulls E-Stream EVA 1 Quick guide

TRANSLATION OF THE ORIGINAL OPERATING INSTRUCTIONS
IMPORTANT
READ CAREFULLY BEFORE USE
KEEP SAFE TO CONSULT AT A LATER DATE
21-18-1097, 21-18-1099, 21-18-1103, 21-21-1094, 21-21-1095,21-21-1096, 21-21-1097, 21-21-1100, 21-21-1105, 21-21-1106, 21-21-1107, 21-21-1109,
21-21-1110, 21-21-1112, 21-21-1115, 21-21-1140
MY21B02 - 22 • 1.00 • 26. October 2020
E-Stream EVA 1, E-Stream EVA 2, E-Stream EVA TR2, E-Stream Evo 1 27,5″, E-Stream Evo 1 29″,
E-Stream Evo 2, E-Stream Evo 2 29″, E-Stream Evo 2 Street 27.5″, E-Stream Evo 3, E-Stream Evo 3 29,
E-Stream Evo AM3, E-Stream Evo TR1, E-Stream Evo AM 5 27.5″(RAINBOW edition),
E-Stream Evo AM 6 27.5″(Chrome Polish edition)
1
2

MY21B02 - 22_1.0_23.10.2020 2
Contents
Contents
1 About these operating instructions 6
1.1 Manufacturer 6
1.2 Language 6
1.3 Laws, standards and directives 6
1.4 For your information 6
1.4.1 Warnings 6
1.4.2 Markups 7
1.5 Nameplate 8
1.6 Type number and model 9
1.7 Identifying the operating instructions 9
2 Safety 10
2.1 Residual risks 10
2.1.1 Risk of fire and explosion 10
2.1.1.1 Rechargeable battery 10
2.1.1.2 Overheated charger 10
2.1.1.3 Hot components 10
2.1.2 Electric shock 10
2.1.2.1 Damage 10
2.1.2.2 Water penetration 10
2.1.2.3 Bridging 10
2.1.3 Risk of a crash 11
2.1.3.1 Incorrect quick release setting 11
2.1.3.2 Incorrect tightening torque 11
2.1.4 Risk of amputation 11
2.1.5 Key breaking off 11
2.2 Toxic substances 11
2.2.1 Brake fluid 11
2.2.2 Suspension oil 11
2.2.3 Defective battery 11
2.3 Requirements for the rider 11
2.4 Vulnerable groups 11
2.5 Personal protective equipment 12
2.6 Safety markings and safety instructions 12
2.7 What to do in an emergency 12
2.7.1 Dangerous situation in road traffic 12
2.7.2 Leaked brake fluid 12
2.7.3 Battery vapours emitted 13
2.7.4 Battery fire 13
2.7.5 Leaked brake fluid 13
2.7.6 Oil and lubricant leaks from the fork 13
2.7.7 Oil and lubricant leaks from the rear
frame damper 13
3Overview 14
3.1 Description 15
3.1.1 Wheel 15
3.1.1.1 Valve 15
3.1.2 Suspension 15
3.1.2.1 Rigid fork 15
3.1.2.2 Suspension fork 15
3.1.2.3 Rear frame damper 18
3.1.2.4 Suntour rear frame damper 19
3.1.2.5 RockShox rear frame damper 19
3.1.3 Brake system 20
3.1.3.1 Rim brake 20
3.1.3.2 Disc brake 20
3.1.3.3 Back-pedal brake 21
3.1.3.4 ABS 21
3.1.4 Electric drive system 23
3.1.5 Motor 23
3.1.6 Rechargeable battery 23
3.1.6.1 Range 24
3.1.7 Riding light 24
3.1.8 On-board computer 24
3.2 Proper use 25
3.3 Improper use 26
3.3.1 Maximum permitted total weight 27
3.4 Technical data 28
3.4.1 Pedelec 28
3.4.2 SuperCore 555 battery 28
3.4.3 Display and control panel 28
3.4.4 Brose S-MAG motor 28
3.4.5 Emissions 28
3.4.6 Tightening torque 28
3.5 Description of controls and screens 29
3.5.1 On-board computer 29
3.5.1.1 On-board computer display screen 29
3.5.1.2 Speed indicator 29
3.5.1.3 Level of assistance indicator 29
3.5.1.4 Journey information indicator 29
3.5.1.5 Battery level indicator
(on-board computer) 30
3.6 Environmental requirements 31
4 Transporting and storing 33
4.1 Physical transport characteristics 33
4.2 Designated handles/lifting points 34
4.3 Transportation 35
4.3.1 Using the brake transport securing
system 35
4.3.2 Transporting the pedelec 35
4.3.3 Shipping a pedelec 35
4.3.4 Transporting the battery 35
4.3.5 Shipping the battery 35
4.4 Storing 36
4.4.1 Storage mode 36
4.4.1.1 Activating 36
4.4.1.2 Deactivating 36
4.4.2 Break in operation 36
4.4.2.1 Preparing a break in operation 36
4.4.2.2 Carrying out a break in operation 37
5 Assembly 38
5.1 Required tools 38
5.2 Unpacking 38
5.2.1 Scope of delivery 38

MY21B02 - 22_1.0_23.10.2020 3
Contents
5.3 Commissioning 38
5.4 Preparing the battery 39
5.4.1 Checking the battery 39
5.4.2 Retrofitting the battery locking lever 39
5.4.2.1 Preparing the frame 39
5.4.2.2 Fitting the locking lever 39
5.4.3 Installing the wheel in the Suntour fork 40
5.4.4 Checking the stem and handlebars 40
5.4.4.1 Checking the connections 40
5.4.4.2 Firm hold 40
5.4.4.3 Checking the headset backlash 41
5.5 Pedelec sale 41
6 Operation 42
6.1 Risks and hazards 42
6.2 Personal protective equipment 43
6.3 Tips for a greater range 43
6.4 Error messages 45
6.4.1 Error message display 45
6.5 Instruction and customer service 47
6.6 Adjusting the pedelec 47
6.6.1 Adjusting the saddle 47
6.6.1.1 Adjusting the saddle tilt 47
6.6.1.2 Determining the seat height 47
6.6.1.3 Adjusting the seat height with quick
release 48
6.6.1.4 Adjusting the seat position 48
6.6.2 Adjusting the handlebars 49
6.6.3 Adjusting the stem 49
6.6.3.1 Adjusting the height of the handlebars 49
6.6.3.2 Adjusting the quick release clamping
force 49
6.6.4 Adjusting the brake 49
6.6.4.1 Retracting the brake linings 50
6.6.4.2 Adjusting the grip distance for a
Magura disc brake 50
6.6.4.3 Adjusting the pressure point for a
Magura 50
6.6.5 Adjusting the damping sag 51
6.6.5.1 Adjusting the Suntour fork steel
suspension 52
6.6.5.2 Adjusting the Suntour fork air
suspension 52
6.6.5.3 Adjusting the Suntour rear frame
damper 53
6.6.5.4 Adjusting the FOX fork air suspension 54
6.6.5.5 Adjusting the FOX rear frame damper 55
6.6.6 Adjusting the rebound damping 56
6.6.6.1 Adjusting the Suntour air suspension
fork 57
6.6.6.2 Adjusting the Suntour rear frame
damper 57
6.6.6.3 Adjusting the FOX suspension fork 58
6.6.6.4 Adjusting the FOX rear frame damper 58
6.6.7 Rear frame damper compression
adjuster 59
6.6.7.1 Adjusting the Suntour rear frame
damper 60
6.7 Accessories 61
6.7.1 Child seat 61
6.7.2 Trailer 62
6.7.2.1 Trailer approval for ENVIOLO hub gear 62
6.7.3 Pannier rack 63
6.7.4 Mobile holder 63
6.7.5 Suspension fork coil spring 63
6.7.6 Tubeless and airless 63
6.8 Check list before each ride 64
6.9 Raising the kickstand 65
6.10 Using the pannier rack 65
6.11 Using the saddle 65
6.12 Rechargeable battery 66
6.12.1 Removing the battery 66
6.12.2 Inserting the battery 66
6.12.3 Charging the battery 67
6.12.4 Waking the battery 67
6.13 Electric drive system 68
6.13.1 Switching on the electric drive system 68
6.13.2 Switching off the drive system 68
6.14 On-board computer 69
6.14.1 Using the riding light 69
6.14.2 Using the push assist system 69
6.14.3 Selecting the levels of assistance 69
6.14.4 Changing the kilometre display unit 69
6.14.5 Switching the journey information 69
6.14.5.1 Deleting the journey distance 69
6.15 Brake 70
6.15.1 Using the brake lever 70
6.16 Suspension and damping 71
6.16.1 Suspension fork compression adjuster 71
6.16.1.1 Adjusting the Suntour compression
adjuster 72
6.17 Gear shift 73
6.17.1 Using the derailleur gears 73
6.18 Parking the pedelec 74
7 Cleaning and servicing 75
7.1 Cleaning after each ride 75
7.1.1 Cleaning the suspension fork 75
7.1.2 Cleaning the rear frame damper 75
7.1.3 Cleaning the pedals 75
7.2 Basic cleaning 76
7.2.1 Cleaning the frame 76
7.2.2 Cleaning the stem 76
7.2.3 Cleaning the wheel 76
7.2.4 Cleaning the drive elements 76
7.2.5 Cleaning the rear frame damper 76
7.2.6 Cleaning the chain 77
7.2.7 Cleaning the battery 77

MY21B02 - 22_1.0_23.10.2020 4
Contents
7.2.8 Cleaning the on-board computer 77
7.2.9 Cleaning the motor 77
7.2.10 Cleaning the brake 78
7.3 Servicing 78
7.3.1 Servicing the frame 78
7.3.2 Servicing the stem 78
7.3.3 Servicing the fork 78
7.3.4 Servicing the drive elements 78
7.3.5 Servicing the pedals 78
7.3.6 Servicing the chain 78
7.4 Maintenance 79
7.4.1 Wheel 79
7.4.1.1 Checking the tyres 79
7.4.1.2 Checking the rims 79
7.4.1.3 Checking and adjusting the tyre
pressure – Dunlop valve 79
7.4.1.4 Checking and adjusting the tyre
pressure – Presta valve 80
7.4.1.5 Checking and adjusting the tyre
pressure – Schrader valve 80
7.4.2 Brake system 80
7.4.3 Checking the brake linings for wear 80
7.4.4 Checking the pressure point 80
7.4.5 Checking the brake discs for wear 80
7.4.6 Checking the electrical cables and
brake cables 81
7.4.7 Checking the gear shift 81
7.4.8 Checking the stem 81
7.4.9 Checking the belt and chain tension 81
8 Maintenance 82
8.1 Suspension system 83
8.1.1 Rear frame damper 83
8.1.2 Suspension fork 84
8.1.3 Suspension seat post 85
8.2 Axle with quick release 85
8.2.1 Checking the quick release 86
8.3 Maintaining the stem 86
8.4 Adjusting the gear shift 86
8.4.1 Cable-operated gear shift, single-cable 86
8.4.2 Cable-operated gear shift, dual-cable 87
8.4.3 Cable-operated twist grip, dual-cable 87
9 Troubleshooting, fault clearance
and repair 88
9.1 Troubleshooting and fault clearance 88
9.1.1 The drive system or display do not
start up 88
9.1.2 Error message 88
9.1.3 Assistance function errors 89
9.1.4 Battery error 90
9.1.5 Display errors 91
9.1.6 Lighting does not work 91
9.1.7 Other errors 92
9.1.8 Suspension fork 93
9.1.8.1 Rebound too fast 93
9.1.8.2 Rebounding too slowly 94
9.1.8.3 Suspension too soft on inclines 95
9.1.8.4 Excessively hard damping on bumps 96
9.1.9 Rear frame damper 97
9.1.9.1 Rebound too fast 97
9.1.9.2 Rebounding too slowly 98
9.1.9.3 Suspension too soft on inclines 99
9.1.9.4 Excessively hard damping on bumps 100
9.2 Repair 101
9.2.1 Original parts and lubricants 101
9.2.2 Replacing the lighting 101
9.2.3 Adjusting the headlight 101
9.2.4 Tyre clearance check 101
10 Recycling and disposal 102
11 Documents 103
11.1 Parts list 103
11.1.1 E-Stream EVA 1 103
11.1.2 E-Stream EVA 2 104
11.1.3 E-Stream EVA TR2 105
11.1.4 E-Stream Evo 1 106
11.1.5 E-Stream Evo 2 107
11.1.6 E-Stream Evo 2 Street 108
11.1.7 E-Stream Evo 3 109
11.1.8 E-Stream Evo AM3 110
11.1.9 E-Stream Evo AM 5
(RAINBOW edition) 111
11.1.10 E-Stream Evo AM 6
(Chrome Polish edition) 112
11.1.11 E-Stream Evo TR1 113
11.2 Assembly report 114
11.3 Maintenance instructions 116
11.4 SuperCore drilling template 120
12 Glossary 121
12.1 Abbreviations 123
12.2 Simplified terms 123
13 Appendix 124
I. Translation of the original EC/EU
Declaration of Conformity 124
14 Keyword index 125

MY21B02 - 22_1.0_26.10.2020 5
About these operating instructions
Thank you for your trust!
BULLS pedelecs are premium quality bicycles.
You have made an excellent choice. Your
specialist dealer will provide you with guidance
and instruction and assemble your product. Your
specialist dealer will also be happy to assist you in
the future, whether you require maintenance,
conversion or repair.
You are receiving these operating instructions
with your new pedelec. Please take time to
become familiar with your new pedelec. Use the
tips and suggestions in the operating instructions.
They will help you to enjoy your pedelec for a long
time to come. We hope you have fun and wish you
well on all of your rides!
The operating instructions are mainly designed for
the rider and the operator. They aim to ensure that
non-professionals can use the pedelec safely.
Download the operating instructions onto your
phone at the following link, so that you can use
them when you are out riding:
www.bulls.de/service/
downloads.
Copyright
© ZEG Zweirad-Einkaufs-Genossenschaft eG
Distribution or reproduction of these operating
instructions and utilisation or communication of
their content is prohibited unless expressly
approved. Any infringement will render the
offender liable for compensation. All rights
reserved in the event that a patent, utility model or
industrial design is registered.
Editing
Text and images:
ZEG Zweirad-Einkaufs-Genossenschaft eG
Longericher Straße 2
50739 Köln, Germany
Translation
RKT Übersetzungs- und Dokumentations-GmbH
Markenstrasse 7
40227 Düsseldorf, Germany
In case of any questions or problems
regarding these operating instructions,
please contact:
[email protected]
Notice
These operating instructions are not a substitute
for personal instruction by the supplying specialist
dealer.
These operating instructions are an integral part
of the pedelec. Therefore, if it is re-sold at a later
time, they must be handed over to the subsequent
owner.
Sections are also designed especially for the
specialist dealer. These sections aim to ensure
that specialist dealers complete initial assembly
and maintenance safely and reliably. The
sections for specialist dealers are highlighted in
grey and marked with a spanner symbol.

MY21B02 - 22_1.0_26.10.2020 6
About these operating instructions
1 About these operating
instructions
1.1 Manufacturer
The pedelec manufacturer is:
ZEG Zweirad-Einkaufs-Genossenschaft eG
Longericher Strasse 2
50739 Köln, Germany
Tel.: [phone]
Fax: [phone]
E-mail: [email protected]
Subject to internal changes
The information contained in these operating
instructions are the approved technical
specifications at the time of printing. Any
significant changes are included in a new
published version of the operating instructions.
You will find any modifications to these operating
instructions at:
www.bulls.de/service/downloads.
1.2 Language
The original operating instructions are written in
German. A translation is invalid without the
original operating instructions.
1.3 Laws, standards and directives
The operating instructions comply with the
essential requirements specified in:
• Machinery Directive 2006/42/EC
• Electromagnetic Compatibility Directive 2014/30/
EU
• ISO 20607:2018 Safety of machinery –
Instruction handbook – General drafting
principles
• EN 15194:2018 Cycles – Electrically power
assisted cycles – pedelec bicycles
• EN 11243:2016, Cycles – Pannier racks for
bicycles – Requirements and test methods
• ISO 17100:2016-05 Translation Services –
Requirements for translation services.
1.4 For your information
Different markings are used in the operating
instructions to make them easier to read.
1.4.1 Warnings
Warnings indicate hazardous situations and
actions. You will find warnings in the operating
instructions:
Will lead to serious or even fatal injuries if
ignored. High-risk hazard.
May lead to serious or even fatal injuries if
ignored. Medium-risk hazard.
May lead to minor or moderate injuries if ignored.
Low-risk hazard.
Notice
May lead to material damage if ignored.
DANGER
!
WARNING
!
CAUTION
!

MY21B02 - 22_1.0_26.10.2020 7
About these operating instructions
1.4.2 Markups
You will find stylised forms of typeface in the
operating instructions:
Instructions for specialist dealers are highlighted
in grey. They are indicated by a screwdriver
symbol. Information for specialist dealers does
not require non-professionals to take any action.
Stylised form Use
Italics Glossary term
Underlined in blue Link
Underlined in grey Cross references
Check marks Requirements
Triangle Instruction for action with
a specific sequence
1Instruction for
action
Several instructions for
action in specified order
Result of the action
SPACED Indicators on the display
screen
• Bulleted lists
Only applies to pedelecs
with this equipment Each type has a different
kind of equipment. A
note beneath the
heading indicates
components which can
be used as an
alternative.
Table 1: Markups

MY21B02 - 22_1.0_26.10.2020 8
About these operating instructions
1.5 Nameplate
The nameplate is situated on the frame. You can
see the exact position of the nameplate in Figure 2.
You will find thirteen pieces of information on the
nameplate.
Figure 1: Nameplate, example
ZEG Zweirad-Einkaufs-
Genossenschaft eG
Longericher Str. 2
50739 Köln, Germany
Typ:
21-17-1017
0,25 kW / 25 km/h
zGG 150 kg
EPAC 25 kg
BJ 2020 / MJ 2021
EN 15194
nach
EPAC
2
3
1
4
5
6
7
89
12
13
10
11
No. Designation Description
1CEmarking The manufacturer uses the CE marking to declare that the pedelec complies with
applicable requirements.
2 Manufacturer's contact details You can contact the manufacturer at the address. You can find more information in
Section 1.
3 Type number All pedelec models have an eight-digit type number, which is used to specify the design model year, the type of pedelec and the version. You can find more information in
Section 1.
4 Maximum continuous power The maximum continuous power is the greatest possible power for the electric motor
output shaft over 30 minutes.
5 Maximum permitted total weight The maximum permitted total weight is the weight of the fully assembled pedelec with the
rider and baggage.
6 Year of manufacture The year of manufacture is the year in which the pedelec was manufactured. The
production period is from August 2020 to July 2021.
7 Pedelec type You can find more information in Section 3.2.
8 Safety markings You can find more information in Section 1.4.
9 Disposal instructions You can find more information in Section 10.
10 Area of use You can find more information in Section 3.2.
11 Model year The model year refers to the first production year that the series-manufactured pedelec was produced in the version concerned. The year of manufacture is different to the model
year in some cases.
12 Weight of the ready-to-ride pedelec The weight of the ready-to-ride pedelec is specified as a weight of 25 kg or above and refers to its weight at the time of purchase. You must add each additional accessory to
the weight.
13 Shut-off speed The speed that the pedelec reaches at the moment when the current has dropped to zero
or to the no-load current value.
Table 2: Nameplate details

MY21B02 - 22_1.0_23.10.2020 9
About these operating instructions
1.6 Type number and model
These operating instructions are an integral part of
pedelecs with the type numbers:
1.7 Identifying the operating
instructions
The Identification number position is located on
bottom left-hand side on each page. The
identification number is composed of the
document number, the version number and the
release date.
Type no. Model Pedelec type
21-18-1097 E-Stream Evo 3 Mountain bike
21-18-1099 E-Stream Evo 3 29″Mountain bike
21-18-1103 E-Stream Evo AM3 Mountain bike
21-21-1094 E-Stream Evo 1 27.5″Mountain bike
21-21-1095 E-Stream Evo 1 27.5″Mountain bike
21-21-1096 E-Stream Evo 2 Mountain bike
21-21-1097 E-Stream Evo 2 29″Mountain bike
21-21-1100 E-Stream Evo TR1 Mountain bike
21-21-1105 E-Stream EVA 1 Mountain bike
21-21-1106 E-Stream EVA 2 Mountain bike
21-21-1107 E-Stream EVA TR2 Mountain bike
21-21-1109 E-Stream Evo 2 Street 27.5″Mountain bike
21-21-1110 E-Stream Evo 2 Street 27.5″Mountain bike
21-21-1112 E-Stream Evo AM 5 27.5″
(RAINBOW edition) Mountain bike
21-21-1115 E-Stream Evo 1 29″Mountain bike
21-21-1140 E-Stream Evo AM 6 27.5″
(Chrome Polish edition) Mountain bike
21-18-1097 E-Stream Evo 3 Mountain bike
21-18-1099 E-Stream Evo 3 29″Mountain bike
21-18-1103 E-Stream Evo AM3 Mountain bike
21-21-1094 E-Stream Evo 1 27.5″Mountain bike
21-21-1095 E-Stream Evo 1 27.5″Mountain bike
21-21-1096 E-Stream Evo 2 Mountain bike
Table 3: Type number, model and pedelec type
Identification number MY21B02 - 22_1.0_26.10.2020

MY21B02 - 22_1.0_23.10.2020 10
Safety
2 Safety
2.1 Residual risks
2.1.1 Risk of fire and explosion
2.1.1.1 Rechargeable battery
The safety electronics may fail if the batteries are
damaged or faulty. The residual voltage can
cause a short circuit. The battery may self-ignite
and explode.
Only use and charge the battery and
accessories if they are in perfect condition.
Never open or repair the battery.
Batteries with external damage must be
removed from service immediately.
If a battery is dropped or struck, remove it from
service and observe it for at least 24 hours.
Faulty batteries are hazardous goods. Dispose
of faulty batteries in the correct manner. Store
battery in a dry place until disposal. Never
store in the vicinity of flammable substances.
The battery is only protected from spray water.
Penetration by water can cause a short circuit.
The battery may self-ignite and explode.
Never immerse the battery in water.
Put battery out of service if you suspect water
has penetrated it.
Temperatures over 60 °C can also cause liquid to
leak from the battery and the battery will become
damaged. The battery may self-ignite and
explode.
Protect the battery against heat.
Never store next to hot objects.
Never expose the battery to sustained direct
sunlight.
Avoid wide temperature fluctuations.
Chargers with excessive voltage damage
batteries. This may result in fire or an explosion.
Only use batteries approved for the pedelec.
Clearly label the supplied charger.
2.1.1.2 Overheated charger
The charger heats up when charging the battery.
In case of insufficient cooling, this can result in fire
or burns to the hands.
Never use charger on a highly flammable
surface.
Never cover the charger during charging.
Never leave the battery unattended during
charging.
2.1.1.3 Hot components
The brakes and the motor may become very hot
during operation. There is a risk of burns or fire in
case of contact.
Never touch the brakes or the motor directly
after a ride.
Never place the pedelec on a flammable
surface, such as grass or wood, directly after
use.
2.1.2 Electric shock
2.1.2.1 Damage
Damaged chargers, cables and plug connectors
increase the risk of electric shock.
Check the charger, cable and plug connector
before each use. Never use a damaged
charger.
2.1.2.2 Water penetration
If water penetrates into the charger, there is a risk
of electric shock.
Never charge the battery outdoors.
2.1.2.3 Bridging
Metal objects may interconnect the battery's
electrical terminals. The battery may self-ignite
and explode.
Never insert paper clips, screws, coins, keys
and other small parts into the battery.