SachsenRad SachsenRad E-Racing R6 User manual

User Manual
with E-Bike pass and maintenance log
SachsenRad E-Racing Bike R6
Productnummer: BB12062 / BB12083

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Inhalt
VIDEO INSTRUCTIONS 4
E-BIKE ID / BIKE PASS 5
1. UNPACKING AND ASSEMBLY INSTRUCTIONS 6
2. ASSEMBLY 7
2.1 Before assembly 7
2.2 Required tools 8
2.3 Installing the front wheel 8
2.3 Fitting the handle bar 9
2.4 Aligning the steering head bearing and stem 10
2.5 Installing the pedals 10
2.6 Fitting the saddle 11
2.7 Adjusting the saddle height 12
2.8. About the brake settings 12
2.9 Note on chain tension 12
2.10 Lighting and bell 12
2.11 Inserting the battery 13
3. OPERATION AND FUNCTIONS 13
3.2 Breaking with the E-Bike 14
3.3 The control display 14
4. YOUR E-BIKE BATTERY 18
4.2 Battery use, safe storage and handling 19
4.3 After use 19
4.4 Charging 19
4.5 Factors inuencing range 20
4.6 Range optimisation 20
5. BEFORE YOUR FIRST RIDE 21
6. MAINTENANCE 22
6.1 Wheels 23
6.2 Chain 23
6.3 Tyres 23
6.4 E-Bike rear wheel hub motor 23
6.5 Brake system 24
7. SAFETY INSTRUCTION 24
8. SERVICE BOOKLET 24
9. F.A.Q. - Frequently asked questions 26
10. DATA SHEET28
11. DECLARATION OF CONFORMITY 28
12. DISPOSAL 28
13. IMPRINT 29
14. WARRANTY 29
15. RETURN RECEIPT 33

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Thank you for purchasing our product!
Please read these instructions carefully.
Cycling is a natural part of a modern, health-conscious lifestyle. People are travelling longer and longer and the
roads for riding are more complicated. Due to the physical differences, riding habits and handling characteristics
of each cyclist, especially when riding uphill or long distances, cycling can be very strenuous. Our e-bike was
specially designed to solve these problems!
This e-bike is a combination of a high-quality lithium battery and a high-end bicycle. Go faster and further with
more fun: It is the ideal companion for your tness programme, for leisure time and for the ways that need to
be done.
Important notes
This manual contains important safety, performance and service information.
Please ensure that you have read and understood the following warnings and precautions before using the pro-
duct for the rst time.
If you lend your e-bike to another person, ask them to read this manual to minimise the chance of accidents.
WARNING: Wear a suitable and qualied helmet while riding and wear uorescent or reective clothing at night.
WARNING: Your existing insurance policies may not cover everything that could occur when using an e-bike.
Please consult your insurance company or your insurance broker. Note: This manual does not cover all possible
complications that may occur while riding. Please also read the F.A.Q. to solve any problems with the e-bike.
For more information, please contact your dealer. Please also contact your dealer or nd a professional service
technician if repair or mainte-nance is required. Please observe all warnings in this manual, read and understand
the contents before using your bike.
WARNING: Warnings indicate that signicant property damage, serious injury or death to you or others may
occur. Please be sure to follow the instructions.

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VIDEO INSTRUCTIONS
Under the following link you will nd video instructions for assembly on YouTube
https://www.youtube.com/watch?v=Y1pG6k6E--Y
In case of a return, please contact our customer service rst. In the case of a return shipment, please ensure that
it is dismantled properly. We also have a short video online for you:
https://www.youtube.com/watch?v=zJ2FOVUJSYw
Under the following link you will nd a video tutorial on how to adjust the brake system
https://youtu.be/Tcc8BmI8occ
NOTE ON THE PICTURES
Pictures and graphics in the manual may differ from your actual product as the R6 is manufactured in several
versions. The pictures are intended as supplements to the text and for better under-standing.

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E-BIKE ID / BIKE PASS
PLEASE COMPLETE THE FOLLOWING E-BIKE PASSPORT, IN MINIMAL FORM, CAREFULLY IN YOUR OWN
INTEREST!
ELECTRIC BIKE BATTERY SERIAL NO.
MOTOR SERIAL NO.
(IF AVAILABLE)
FRAME/FORK/RIM
DERAILLEUR
TYPE/NUMBER OF GEARS
SUSPENSION FORK BASKET FRONT CARRIER
OTHERS
FRAME NO.*
MODEL
TYPE
ENGINE (REAR/CENTER)
SIZE (IN INCHES)
COLOR
GEAR SHIFT
SPECIAL
EQUIPMENT
OWNER
SELLER
PURCHASE DATE
* THE FRAME NO. IS LOCATED ON THE FORK SHAFT TUBE (BEHIND THE HEADLIGHT)

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1. UNPACKING AND ASSEMBLY INSTRUCTIONS
Tip: Your e-bike is slightly heavier than a normal bike. It is best if two people lift it out of the box.
Required tools and aids (recommendation)
- Tool kit (supplied, see 2.2)
- Blanket or old carpet (to prevent the oor or the e-bike from being scratched during assembly.
Please read the following instructions carefully before unpacking and assembling your e-bike and follow the
recommended sequence.
1. Carefully open the packaging box (to avoid injury, please wear gloves).
2. Carefully remove the bike from the box, preferably in pairs.
3. Place the bike on a blanket to avoid scratching the oor and the bike.
4. Take all the parts out of the large box, including the accessories box.
5. Carefully cut the various cable ties. By doing so, do not accidentally damage the bike, paint or tyres or lose
accessories.
6. Remove all protective material.
7. Remove the e-bike battery from the packaging or from the e-bike battery sled and charge it for at least 10-12
hours rst. Please read sections 5.2 and 5.3.
(Tip: The battery must be charged for at least 12 hours before rst use. Please read section 5.2 and section 5.3. )
Remarks: Upgrading with accessories, attachments or tampering with the control units.
WARNING: If you need to upgrade parts or add accessories, beware of the following: Before at-taching parts or
accessories, make sure that the specications and dimensions match. Please check with your dealer if necessa-
ry. Parts with different specications can be tted but there is a major safety risk.
WARNING: Incorrect installation and use of parts not supplied with the e-bike and improper modi-cations to the
original condition of the e-bike may result in signicant property damage or the voiding of any warranty or gua-
rantee claims. Even accidents, serious injuries or death can be the result. If you wish to upgrade or add further
parts or accessories, please contact your dealer or a suitable expert. They can give you information about this.
WARNING! If you replace parts of the e-bike, upgrade parts or add accessories, please note that such changes
may not have the same safety qualications, so there is a certain safety risk.

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Designation of the e-bike parts
1. Saddle
2. Seat post
3. Quick release saddle
4. Rear brake
5. Front wheel / tyre
6. front brake
7. pedals and chainring
8. suspension fork
9. battery slides
10. drive chain
11. rear wheel / tyre
12. sprocket cassette
13. motor
14. battery charging connection
15. bicycle handle bar
16. left hand brake lever (rear brake control)
17. right brake lever (front brake control)
2. ASSEMBLY
2.1 Before assembly
WARNING: Incorrect assembly of your e-bike can cause signicant damage to the bike and even personal injury.
If you are not sure whether your assembly is correct, please contact your dealer.
WARNING: The motor, controls, sensors, battery and various cables on your bike must not be used for other
purposes. Do not disassemble or modify [adjust] these parts as this may cause serious damage to them, voiding
the warranty. It may also harm your personal safety. If you need assis-tance, please contact your dealer.

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2.2 Required tools
Supplied in the tool kit:
Allen key 4s, 5s, 6s (3x)
Open-end spanners 8/10, 13/15, 14/17 (3x)
Screw driver
NOT INCLUDED IN DELIVERY:
Air pump with car valve
Please bring the tyre pressure of the front and rear wheel to at least 2.8 bar with the help of an air pump
BEFORE THE FIRST RIDE.
Note: For transport reasons, we can only deliver the e-bike with very low tyre pressure. Do not ride without rst
inating the tyres!
2.3 Installing the front wheel
Remove the black plastic covers on the left and right of the front wheel that were used to secure it for transport.
Carefully loosen the cable tie on the spoke with which your quick-release axle is attached.
Unscrew the nut of the quick release axle including a spring, put the quick release axle through the axle of the
front wheel.
Now carefully insert the front wheel between the legs of the suspension fork. Pay attention to the direction of
the wheel. The brake disc must be on the side of the brake caliper. Carefully insert the disc into the brake calliper
parallel to the wheel in that manner that no damage to the brake or brake disc is inicted.

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When everything is set correctly, slide the spring back onto the axle and carefully screw the grip nut onto your
front axle until the quick release can be ipped over hand-tight, thus holding the wheel rmly in the mount.
Now let the wheel turn by hand and check that it sits and runs correctly. Check and test the front brake. The ins-
tructions for adjusting the brakes can be found under section 2.5. If everything works, your front wheel should
now be correctly mounted.
2.3 Fitting the handle bar
Fig.1 Fig. 2 Fig. 3
Now you shave to mount the handlebar and then readjust the steering head bearing. First loosen the four bolts
of the stem (Fig.1).
NOTE: The stem is designed differently on some versions.
Now place the handlebars in the stem shell (please note the direction and run of the cables and Bowden cables)
and screw the stem back on as shown in Fig. 2. Before doing so, align the handlebar centrally with the stem
and tighten the four hexagonal bolts crosswise using the tool supplied. Tighten the bolts evenly and carefully.
ADJUSTING THE TILT OF THE HANDLEBAR: First loosen the clamping spindle screws of the handlebar sleeve
(Fig. 1) with the appropriate hexagon socket spanner. Adjust the angle of inclination of the handlebar by turning
the handlebar forwards or backwards around its own axis by hand. Tighten the clamping spindle screws again.

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2.4 Aligning the steering head bearing and stem
Note: This step may differ for your model and may not be necessary because it has already been pre-assembled.
Note: In the photos above, the handlebars have not yet been tted; this is for the sake of clarity. Please follow
the described assembly sequence.
After the handlebars have been installed, turn the stem 180 degrees so that the suspension fork and handlebars
are in the correct position. To do this, rst loosen the rubber screw cover (C) and loosen the screw underneath
(C) with the appropriate tool. Open the horizontal bolts of the stem, (A) and (B) in the illustration, so that the
steering head bearing can move freely when turning and tightening. Align the handlebars with the stem at a 90
degree angle to the suspension fork by turning it 180° (look at the cables and Bowden cables to see if they are
pointing to the left or right). The arrows (1) and (2) describe the directions of the stem and the suspension fork.
On the left pic-ture you see the delivery condition and on the right the nal alignment of the assembly. When
everything is correctly aligned, tighten the single head bolt (C) until the steering head bearing has no more slack
but can still be moved easily. Then you can tighten the two horizontal bolts of the handlebar stem once from the
left (A) and once from the right (B) until everything together forms one unit. Finally, put the rubber screw cover
(C) back on the hexagon screw.
2.5 Installing the pedals
1. Please fasten your bicycle. It is best if two people hold it so that the chain and crank can turn smoothly.
2. Take the pedals out of the packaging and sort them. „R“ stands for the right foot, the „L“ is the left foot.
3. Align the foot thread with the mounting hole on the crank, tighten the right pedal clockwise and the left pedal
anticlockwise.

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4. Use a 15 mm open-ended spanner to lock the foot.
WARNING: Improper installation of the pedal can pose a serious safety hazard resulting in signi-cant property
damage, serious injury or death. Please check that the pedals are secure before each use.
2.6 Fitting the saddle
1. Make sure that the quick-release of the seat post is open (picture A).
2. Insert the seat post into the seat post bracket of the frame (picture B).
3. Press the quick-release lever onto the frame and close it.
Please make sure that the lever is locked (picture C). Otherwise injuries may occur
Picture A Picture B Picture C
Tip: Please adjust the nut on the opposite side of the lever to adjust the tightening force of the lever.
WARNING: Do not pull out the seat post more than the marking of the minimum insertion depth. The marking
must not be visible! Risk of breakage and accident! No warranty in case of disregard !

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2.7 Adjusting the saddle height
1. The height of the saddle can be adjusted with the quick-release on the saddle rail. You only need to release
the quick-release lever to freely select the height of the saddle. After you have adjusted the desired height, lock
the quick-release lever again and the adjustment is complete.
2. After the adjustment, make sure that the quick-release lever of the seat post is well locked. The seat post must
not slip.
WARNING: Incorrect installation of the seat post may result in serious injury or death. It is strictly forbidden to
raise the height of the seat post above the safety line.
2.8. About the brake settings
If you are not satised with your brakes, please contact your dealer and ask for the intervention of a professional
technician.
2.9 Note on chain tension
Not after the rst few rides, but after a certain period of use, the chain may be worn out due to transmission
strength and can be properly adjusted by using a tensioning screw to hold the chain in place. The chain should
be set on the smallest tooth of the ywheel. Turn the rear transmission tensioning screw (see g. A) clockwise
with a screwdriver. The chain should not sag. Also make sure that the chain is sufciently greased and clean.
2.10 Lighting and bell
NOTE: If front and rear lights and bell are included in the accessory pack, they must yet be tted.
Rear light
You will nd the battery-powered rear light in the accessory box. Attach it to the seat post below the saddle using
the screwdriver provided. If the clamp of the rear light mount is too loose, use the rubber strip provided. Before
using the rear light for the rst time, remove the battery protection strip.
Bell
You will nd the bell, if not already installed on the handlebars, in your accessories box. Find a suit-able place on
the handlebar and install the bell in the same way as for the rear light (described above).

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Front light
If you do not nd your front light already adjusted to the front of the bike, unpack the light from the accessory
box and install it using the hexagonal bolt and nut supplied. You will nd the neces-sary tools in the tool bag in
the accessory box. Connect the plug of the lamp to the plug on the e-bike. Pay attention to the arrows on the
side.
2.11 Inserting the battery
If your battery is not already inserted, please follow the next steps.
You will nd your e-bike battery packaged separately in your complete e-bike package. Unpack the battery and
remove any protective sticker from the battery contacts. Familiarise yourself with the locking mechanism of the
battery using the key. Before inserting the battery, make sure that the red main switch on the right side of the
battery is in the „O“ position. Place the battery on top of the battery slide and let the battery slide down as far
aspossible. If the battery is in the correct posi-tion, you can lock the battery with the key. Before each ride, check
that the battery is in the correct position. Do not ride with an unlocked battery!
Before switching on the e-bike via the control display, you must of course set the battery main switch to „I“
again.
3. OPERATION AND FUNCTIONS
Please read this section carefully. Before using the device for the rst time, please contact your dealer to learn
more about the features of your electric bike.
1. Put on your helmet and choose a quiet place away from cars, other bicycles, obstacles or risky
environmental conditions.
2. Make sure the power switch is in the „off“ position and then raise your bike stand.
3. Ride your electric bike for a test ride without motor assistance and adjust everything to suit you.
4. Press the switch in the centre of the display control unit for at least two seconds to set your motor to
standby.

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NOTE: Please keep the battery main switch in the 0 position until you are safely on the bike.
WARNING: Do not sit on your bike with the bike stand unfolded as this may cause damage to the vehicle and
personal injury.
Nothing working?
Please refer to section 9 for troubleshooting:
F.A.Q. - Frequently asked questions about problems and their solutions
3.2 Breaking with the E-Bike
TIP: When you apply the brakes, the motor is automatically switched off, which is a standard safety setting.
TIP: There is a sensor in the brake lever. When you apply the brake, the motor is automatically switched off. So
do not press on the brake handle when you want the motor to work. Try the brakes at low speed. The brake hand-
le of the left hand corresponds to the brake of the rear wheel. The brake handle of the right hand corresponds to
the front wheel brake. Never brake hard. Squeeze both brakes together.
WARNING: If you suddenly and harshly engage the front brakes, you will roll over. Please do not set your brakes
too hard to prevent wheel lock and accidents. Check the sensitivity and braking force of the brakes before each
ride.
3.3 The control display
Intelligent control display for electric bikes:
Model: KD58C
Specications
- 24V / 36V / 48V power supply
- Rated current: 10mA /
maximum working current: 30mA
- Quiescent current when switched off: <1 µA
- Working temperature: -20 - 60 ° C.
Storage temperature: -30 - 70 ° C.
Control display dimensions (in mm)

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Functions of the control display
• Battery indicator
• Support levels
• Speed display (incl. current speed, maximum speed and minimum speed)
• Motor output display
• Ride time
• Distance and total distance
• Assistant function
• Switch lighting on/off
• Error code display
• Various setting options (e.g. wheel circumference, speed limit, battery level, activate password, etc.)
• Restore default settings
Function layout
Button denition
There are three buttons on the KD58C display: ON/OFF, +, -
Mounting instructions
The control display has been pre-mounted on the left side of the handlebar. Adjust the angle for a good screen
view. Switch off the battery beforehand.
General operation (control display)
Switching the e-bike control display on and off
Press and hold the ON/OFF button for 2 seconds to switch the e-bike system on and off.
NOTE: Switch the red battery main switch to „1“ beforehand.
Error code denition
If improper operation by the user occurs (e.g. excessive pressing of the on/off, + or - button), the user can
switch off the display and restart it. If the e-bike is not moved for approx. 10 minutes, the control display swit-
ches off automatically.
Display indication
After switching on, the display shows the battery status and the speed. Press the ON/OFF button to switch bet-
ween indications:
Current speed (km/h), distance (km), QDO (km), time (hour), average speed (km/h), maximum speed (km/h).

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The status is displayed for 2 seconds and automatically returns to the current display.
Operation and functions
Assistant mode
To activate the function, press and hold the - button. After 2 seconds, the e-bike continues to trav-el at walking
speed (6 km/h). The function is switched off as soon as the - button is no longer pressed.
This mode only works by keeping the
- button pressed.
Caution! The e-bike accelerates in this mode.
Switching the lighting on/off
Press and hold the + button for 2 seconds to switch on the front light.
The front light is switched off in the same way.
Motor support levels
When the control display is switched on, the speed level is 0. There are 5 speed levels. At speed level 0, the e-
bike runs without speed assistance. At minimum power level 1, the driving assistance starts. You get maximum
power at level 5. You can change the speed level using the + and - button.
Battery indicator
The battery consumption is shown on the display.

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Reset default settings
dEF Meaning: Default settings are restored. Press and hold the + key and the ON/OFF key for 2 seconds to enter
the restore. Use the + and - keys to choose between YES and NO. If YES is selected, the restoration of the de-
fault settings will be activated. If NO is selected, the default settings will not be restored. Use the ON/OFF key to
conrm your selection.
Error code display
The components of the e-bike system are continuously and automatically monitored. As soon as an error is
detected, the control display shows you an error code (see error code list).
If an error code is displayed, have the display checked and take repair measures if necessary. Please contact the
manufacturer or a bicycle dealer in your vicinity.
Quality assurance and warranty
The warranty is valid for 24 months from the date of purchase of the e-bike and only if used properly.
The following cases are not covered by the warranty:
1. The display is torn off.
2. Damage to the display is caused by incorrect installation or use.
3. The housing of the control display is damaged after the purchase of the e-bike through the
fault of a third party.
4. The cable of the display is broken.
5. The warranty period has been exceeded.
Warning
1. Use the display with care. Please do not open the chassis when the control display is pow-ered on.
2. Avoid hitting the display with objects.
3. Contact the manufacturer if the display does not work properly.
4. This manual is a universal version for display KDSBC. The specication may differ with re-spect to the soft-
ware.

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Error code denition
21 Technical fault
22 Throttle malfunction (connecting cable)
23 Engine problem
24 Transmission problem
25 Brake malfunction
30 Electro-communication fault
31 MOSFET tube short circuit
32 On/off button problem
33 +/- button problem
34 Voltage failure
4. YOUR E-BIKE BATTERY
Main switch of your e-bike battery.
Set to „I“ before switching on the display control and to „0“ after riding.
NOTE: When removing and inserting the battery, always set the main switch to „0“ beforehand.
Connections:
Battery contacts Charging socket USB - Charging socket (max. 1A 5V DC)
4.1 BATTERY - charge level indicator
Press and hold the button of the battery charge level indicator and the current charge level of your e-bike will be
displayed.
Illumination of the LEDs:
1x red, 3x green >> 100%
1x red, 2x green >> 75%
1x red, 1x green >> 50%
1x red, 0x green >> 25%
Always check the remaining battery power. If your battery contains less than one cell (20%), please charge it as
soon as possible.

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The motor and battery control stops automatically to protect the battery and prevent a power failure as soon as
the battery voltage is below a certain value.
Warning: Never use the battery until it is completely empty as this will seriously affect the capacity and charge
level of the battery.
If the battery stops working, use an appropriate charger to charge the battery. The battery can be fully charged
in approximately 5 - 6 hours under normal conditions.
Note: If you suddenly encounter a steep incline while riding and your speed drops below 10 km/h, you should
dismount and climb the incline on foot to prevent the chain and motor from being damaged. Otherwise, the mo-
tor may overheat. The battery discharges too quickly at high power and the battery capacity and life are reduced.
4.2 Battery use, safe storage and handling
Battery use
Reading and understanding the following points can help you to use, maintain and store your battery correctly,
which is very important for improving the performance of your e-bike.
WARNING: Improper removal, repair, use or storage of the battery may void the warranty and may result in se-
rious consequences. It is strictly forbidden to use the battery of your electric bike for other vehicles or devices.
This will void the warranty and may result in serious consequences such as re, serious injury or death. If you
have any questions about using the battery, please contact your dealer.
WARNING: Never short-circuit a battery intentionally. Doing so may cause an explosion, re and serious danger
to your health.
Tip: Your battery must be charged for at least 12 hours before you use it for the rst time. If your battery is not
used for more than 30 days, continue reading in section 4.6.
4.3 After use
Switch off the control display or the battery main switch before dismounting in order to be able to safely lower
the bicycle side stand. If there are any questions about the last time you used your e-bike, please contact your
dealer or a specialist workshop before your next ride.
4.4 Charging
Please fully charge your battery, as the lithium-ion battery can be severely damaged if it is completely dischar-
ged. Keeping the battery charged helps to preserve it. For details, see sections 4.5 and 4.6.
NOTE: Please unplug the charger from the mains before connecting the charger‘s mains plug to the mains so-
cket.
NOTE: If you wish to disconnect a charger from the mains, rst switch off the charging switch.
CAUTION: To avoid damage to the charger, do not tear the charger or subject it to strong shocks.
WARNING: Improper use of the charger can result in serious consequences, including re, signicant property
damage, serious injury or death.
NOTE: Do not place any objects on the battery and charger during charging as this may cause over-heating and
serious consequences.

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NOTE: Please use your charger indoors as damage caused by improper use is not covered by the warranty.
Recharge plan (recommendations)
Charging Hours
First three charges 12
Normal charging 4-6
Every ten charges 12
Charge the battery after each use to ensure the longest possible life.
CAUTION: Never charge for more than 12 hours to avoid overcharging.
WARNING: Please use the charger supplied with the battery to charge it. If you use a charger other than the
original, the battery will lose its warranty and may be damaged, resulting in re, injury or death.
Tip: You can charge your battery at any time. If you do not charge the battery in time when it is empty, it will
gradually lose its performance and life. With proper use and maintenance, your battery can maintain more than
80% capacity after more than 500 charging cycles, but the decrease in total capacity is inevitable.
4.5 Factors inuencing range
Factors inuencing the range of your e-mobility with the R6
• Age and state of charge of the battery
• Storage/storage location before the trip (depending on temperature)
• Outside temperatures
• Tyre pressure (recommendation: 2.9 - 3.4 bar)
• Weight of rider
• Riding style and choice of assistance level
• Road/ path conditions
• Weather conditions
• Frequent stops and restarts
• Cleanliness and inertness of bearings and all moving parts
4.6 Range optimisation
• Fully charge the battery
• Check tyre pressure 2.9 - 3.4 bar
(recommended depending on body weight, load and route pro-le)
• Reduce the load
• Do not ride too fast
• Maintain a constant speed