Ruff Cycles Ruffian Installation instructions

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ORIGINAL OPERATING MANUAL

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Manufacturer:
RUFF CYCLES GmbH
Im Gewerbepark B69
93059 Regensburg
Germany
info@ru-cycles.com
.ru-cycles.com
V 2.0 February 2023
Layout, photographs and text: RUFF CYCLES GmbH, Regensburg, Germany
Texts were provided with courtesy of HNF GmbH
The mentioned brand names are subject to copyrights and are the property of their legitimate owners
even without special indication. Any reprint or copy, even only in extracts, is only permied with our
expressed wrien consent. This manual is subject to misprints, errors and technical alterations. Please
note that the illustrated product may be dierent from the delivery condition of the product.

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CONTENTS
1. Your Vehicle 7
1.1. Intended Use 7
1.2. Vehicle Overview 9
1.3. Delivery Scope 10
1.4. Assembly of Accessories 10
2. Commissioning 10
2.1. Handlebar Alignment 10
2.2. Pedal Assembly 11
2.3. Seing the Saddle Distance 12
2.4. Removal/Installation of the Baery 13
2.5. Switching ON/OFF the Drive 13
2.6. Adjusting Support Level 14
2.7. Switching ON/OFF the Lamp 14
2.8. Initial Engagement of Brake Discs 14
3. Before Each Ride 15
3.1. Checking the Tires 15
3.2. Checking the Brake System 15
3.3. Checking the Drive Belt 16
3.4. Baery: Checking the Fixation and Charging Status 16
3.5. Checking the Fork 17
3.6. Checking the Screw Connections 17
3.7. Checking the Lights 17
4. Operating the Bike 18
4.1. Gear Hub 18
4.2. Drive Unit 19
4.2.1. Belt Drive Unit 19
4.3. Brake System 20
4.4. Side Stand 20
5. Ergonomic Seing 21
5.1. Seing Saddle Position and Inclination 21
5.2. Brake Lever 21
5.2.1. Adjusting Brake Lever Position 21
5.2.2. Brake Grip Angle 22
5.2.3. Adjusting Brake Lever Distance 22
6. Maintenance 23
6.1. Wear Parts List 23
6.2. Recommended Maintenance Intervals 24
6.3. Aer an Accident 25
6.4. Baery 25
6.5. Tires 26
6.6. Changing Tires/Tubes 26
6.6.1. Dismounting the Front Wheel 26
6.6.2. Dismounting the Rear Wheel 27
6.6.3. Changing Tires/Tube 28
6.6.4. Installing the Front Wheel 28
6.6.5. Installing the Rear Wheel 29
6.7. Seing the Shier Cable Play 30
6.8. Brakes 30
6.8.1. Wear of Brake Pads and Discs 30
6.8.2. Checking the Brake Pads 31
6.9. Seing the Headlight Range 31
7. Cleaning and Maintenance 32
8. Transport on/by Car 33
9. Technical Data 34
9.1. Component List 34
9.2. Weights 35
9.3. Torque of Screws 35
10. Liability for Material Defects 36
11. EC Declaration of Conformity 37
12. Disposal 38

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We congratulate you on the purchase of a Pedelec with BOSCH driving techno-
logy. You have decided for a state-of-the-art means of transport, which allows
you brand-new mobile options. We put greatest importance on the technical
quality of the single components of your Pedelec1, ensuring that you will enjoy
your bike for many years.
The Pedelec is a bicycle with electrical power assistance for the driver. This aid
is adjusted via a controller that evaluates the data through three sensors (speed,
step rate and torque), regulating the engine according to the selected support
level. When reaching a speed of 15.53 mph (25 km/h), the electrical engine
switches o. But driving at a speed over 15.53 mph (25 km/h) by oneself is also
possible.
The Pedelec is lawfully equivalent to the bicycle. No permit or license plate are
required. The driver does not need a driver license. We do recommend that you
wear an appropriate helmet and goggles for your own safety.
1 Pedal Electric Cycle
1. YOUR VEHICLE
YOUR VEHICLE
Content and Symbols in this User Manual
This User Manual contains important information for enhancing safety and pro-
longing service life of the Pedelec as well as lasting fun with your The Ruan.
Any neglect of the contents of this User Manual may lead to damages to the
vehicle as well as injuries.
The following symbols are used in the User Manual:
Important Information!
Warning!
This symbol indicates a possible danger.
Please observe the safety instructions!
Information
Here, you will find useful information on the maintenance of the product
The User Manual of your The Ruan is constantly checked and updated. This instruction
corresponds to our level of knowledge at the time of publication. We recommend you to
visit our website .ru-cycles.com/manuals for any modifications. Here you can also
download the updated manual in PDF format.
In the following text, your The Ruan is called “Pedelec“
1.1. INTENDED USE
Your Pedelec is intended for the transport of one person on asphalt roads and
rideable forest and land routes. The additional allowable load
(bike + driver + accessory + baggage) amounts to 120 kg.
The Pedelec is not intended for:
• Racing/competition
• Cleaning with a water jet
• Transport in the rain by a car without covering the engine and
dismantling the baery and display
• Charging the Pedelec outdoors in a wet environment

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The frame number is found on the plate on
the lower tube directly below the engine. The
type plate is located on the boom of the tank.
Please note down the serial number of the Pedelec here:
1.2. VEHICLE OVERVIEW
1. Stepless Hub
2. Belt Drive
3. Frame Number
4. Engine
5. Baery
6. Type Plate
7. Fork
8. Display
9. Control Unit
YOUR VEHICLEYOUR VEHICLE
Intended use is also limited by:
• The safety instructions in this User Manual
• The “Technical Data“ chapter in this User Manual
• Your local regulations for street transport
The following user groups should not use the Pedelec:
• Persons with a limited physical, sensory or mental capacity
• Persons who due to their body size, cannot safely ride the bicycle
Any changes to your Pedelec increasing the engine output or maximum support
speed, could endanger your driving safety and convert the vehicle from a Pedelec
into a small motorcycle. You could be exposed to sanctions in accordance with traf-
fic, licence and safety regulation with penal consequences!
A Pedelec always accelerates faster than a bicycle. Be aware that other trac parti-
cipants cannot always predict your acceleration performance.
→ First, get acquainted to your new Pedelec on a trac free location, before riding in
the busy streets.
→ Exercise the brakes. Please also see chapter 4.3. “Brake System“.
Rotating parts such as wheels, chain ring, sprocket, pedal crank or pedals may draw
in clothing, carried objects and even body parts, e.g. your shawl or a bag aached
to the handlebar may get caught into the spokes during driving. When your feet slip
from the pedals, they can get caught in the spokes. This may lead to severe acci-
dents!
→ Always wear tight-fiing clothes.
→ Wear shoes with non-slip, flat soles.
→ Do not aach objects onto the handlebar, as they may swing into the front wheel.
Check if required active and passive illumination devices have been installed ac-
cording to the safety regulations applicable in your country. Required illumination
devices can be purchased on our ocal website. The technical design safety
must be checked regularly and eventually be repaired by a specialist.

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• Charging device
• Board computer
• Anti-the safety screw on the board computer at the mounting support
• 2 keys for securing the baery to the Pedelec
• 2 transport fixations for the hydraulic dics brake
• Delivery package (please store if you consider to cancel the purchase within
two weeks)
• User manuals of dierent component manufacturers
1.3. DELIVERY SCOPE
1.4. ASSEMBLY OF ACCESSORIES
2.1. HANDLEBAR ALIGNMENT
When installing accessories like a child seat or trailer, please check the compati-
bility with the Pedelec through the accessory manufacturer or a bicycle dealer.
This chapter explains how to prepare your Pedelec for the ride.
Inflate the tires first. The air pressure volume is described in chapter 3.1.
2. COMMISSIONING
Your Pedelec is supplied as a part assembly and as a full assembly. In the laer case, you
can skip items 2.1. and 2.2.
If it is not a standard delivery, please read the following items for “Handlebar Alignment“
and “Pedal Assembly“.
The stem is a significant safety component. When tightening the bolts, ensure that
you use the torque as defined in the torque table under 9.3. Otherwise, there is a
hazard of accident!
• Li the vehicle by the front frame, so that it no longer touches the ground.
Turn the fork lewards and rightwards. The front wheel must follow the
movement. This simulated steering operation should not be dicult
• If the steering is not rotated easily, the ahead bolt is tightened too fast (3).
Loosen it by releasing the 3 clamps on the top fork bridge(2). Now you can
adjust the compression of the steering bearing with the ahead bolt. Read-
just the bolts of the fork bridge with a torque of 67 Nm
• Finally, clamp the handlebar in the middle
by tightening the bolts (1) at the cross on
the stem. Ensure a uniform front and rear
gap between stem and cover
• Apply a thin layer of grease onto the
thread of the pedal axis and the crank.
Next, screw the pedal into place by hand
loosely. Consider the correct assembly
angles in order to avoid tilting
• Place the crank in a horizontal position,
the right pedal oriented towards the front
wheel.
• Tighten the pedal with an SW 8 Allen key at 3035 Nm.
2.2. PEDAL ASSEMBLY
Pedals are important safety components. Make sure that you tighten the pedal axis
firmly, according to the manual. Otherwise, there is a hazard of accident!
COMMISSIONINGYOUR VEHICLE
The right pedal has a right thread, the le pedal has a le thread on the pedal axis. The
right pedal is mounted clockwise and the le pedal is mounted counter-clockwise. The
pedals are marked with “R“ and “L“.

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Removing the baery:
• Loosen the lower cover of the tank with a
SW3 Allen key and remove it
• Before removing the baery, ensure that
the system is disconnected. Turn the key
in the lock by 1/4 rotation while tilting the
baery from the upper bracket
• Pull the baery from the bracket
Inserting the baery:
• Insert the baery with its contacts on the
lower bracket and, while sliding it in, tilt
it up to the upper bracket, until the lock
snaps in audibly
• Remount the cover on the tank
2.3. SETTING THE SADDLE DISTANCE 2.4. REMOVAL/INSTALLATION OF THE BATTERY
The correct saddle distance is achieved when you
can place your ball of the foot on the pedal with
your leg in extended position. The crank must be
aligned at an angle of approx. 45°.
To check the saddle distance, lean against a wall
while seated on the Pedelec, or have another
person hold the Pedelec.
The saddle distance is changed as follows:
• With a 13 open-end spanner, loosen both
saddle support clamping bolts to such a
width allowing the adjustment of the saddle
• Re-tighten the bolt with the open-end
wrench (value according to torque table in
chapter 9.3.).
COMMISSIONINGCOMMISSIONING
Please note that the saddle clamp has to be within the hatched area. Moving it too
far back could result in damage of the seat post.
Do not pull the saddle support from the seat
tube if you want to change the saddle height.
The front part must lie flush with the upper
tube. If you pull out the saddle support, both
the support or the upper end of the seat tube
may break. A hazard of accident or injury
exists!
The saddle support clamping nut is tightened correctly when the saddle cannot be rotated
or slipped sideways under your body weight.
2.5. SWITCHING ON/OFF THE DRIVE
• Slide the supplied board computer onto the
handlebar support
• Press the ON/OFF switch on the board com-
puter shortly

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BEFORE EACH RIDECOMMISSIONING
2.6. ADJUSTING SUPPORT LEVEL
2.7. SWITCHING ON/OFF THE LAMP
2.8. INITIAL ENGAGEMENT OF BRAKE DISCS
Your brake system is delivered with a weak break function, because the surfaces
of the brake discs and pads have not been engaged yet. With a new Pedelec,
and also when changing the brake discs and pads, you should engage the brake
discs as follows:
• Accelerate the Pedelec to approx. 15.53 mph (25 km/h)
• Brake the Pedelec by both brakes until standstill
(avoid to block the wheels!)
• Repeat this procedure as oen as required in order to achieve an optimal
brake performance
For the adjustment of the support level, press the
“+“ buon on the control unit until the required
support level is shown on the display. To lower it,
press the “–“ buon.
By pressing the light buon, the LED headlamp
and rear light are switched on and o.
If you put too much force on the front wheel brake, a hazard of tipping over exists.
Your rear wheel might li and have you fall over the handlebar.
→ Pull a lile less at the le brake lever, or fully release the brake lever, when you
notice that the rear wheel is lied.
3. BEFORE EACH RIDE
3.1. CHECKING THE TIRES
3.2. CHECKING THE BRAKE SYSTEM
• Before each ride, check your brakes at standstill. For this purpose, pull the
brake lever towards the handlebar with two fingers for a normal braking
force. The brake lever must not touch the handlebar grip
• Move the Pedelec while pulling the front and rear brakes. A play too strong
is not allowed. If you notice any play, identify the cause. The brake calliper
or brake disc may not be tightened firmly. Tighten according to the torques
in the torque table in chapter 9.3
Air pressure: The allowed pressure range of the Ruer 26” ETRTO 76559 is
between 1 and 2 bar.
The following applies: The higher your weight, the higher the air pressure to be
used. If you are not a light-weight person, set the pressure of your rear tire at 2
bar.
We recommend to check the pressure every 2 to 4 weeks, since there is an
inevitable constant pressure loss of the inner tubes.
With a tire pressure too low, a puncturing hazard exists (snakebites). This will result
in a flat tire.
A tire that is damaged by tears or punctured by a sharp object may loose its pres-
sure. A hazard of accident exists!
→ Check that your tires are without tears or any foreign objects.

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BEFORE EACH RIDEBEFORE EACH RIDE
• If hydraulic brake discs are used, the pressure point must be stable at the
brake lever. If the pressure point is not reached aer 2/3 travel of the lever,
pull the lever several times in a row (“pumping“). Check whether the pres-
sure point has stiened. If so, or when the pressure point changes during
the ride, have the brake system bled by a specialist workplace
• The brake discs must be oil-free. Any oil on the brake discs is best removed
with alcohol. Do not use a conventional brake disc cleaning solution!
The pressure point is the lever position at which the brake is engaged. If brakes function
smoothly — there are no air bubbles in the hydraulic line — the pressure point is situated at
the same lever position at each braking action.
Do not touch the brake discs with your hands. The thin grease film on your skin is transmit-
ted to the brake discs and aects their functions.
3.3. CHECKING THE DRIVE BELT
3.4. BATTERY: CHECKING THE FIXATION AND CHARG-
ING STATUS
3.5. CHECKING THE FORK
The drive belt is a product subject to wear. Please check the following items
regularly:
Check whether the baery is secured in the lock and see whether the charging
status is sucient for your planned ride.
Before each ride, check the fork for:
• Breakage and deformations
• Secure fixation of the protective plate
• Firm screwing connection of the fork bridge
• Are there any foreign objects (twigs) in the drive belt?
→ If so: Remove them
• Is the drive belt very dirty?
→ If so: Rinse it with water or a proper cleaning solution
3.6. CHECKING THE SCREW CONNECTIONS
3.7. CHECKING THE LIGHTS
Before each ride, check the screw connections for
Before each ride, check the function of the lights. Ensure that the headlamp is
directed according to the lighting range defined by your local regulations. See
chapter 6.9.
Li the vehicle up slightly and let it fall onto the ground on its tires. Check whet-
her you see or hear any loose parts. Identify the cause of any loose parts and
check if their torque is correct. If required, consult a specialist dealer.
Also check that the following parts do not rotate
• Quick release of the front wheel
• Screw axis of the rear wheel
• Saddle
• Saddle support
• Handlebar
• Stem

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OPERATING THE BIKEOPERATING THE BIKE
4.1. GEAR HUB
The gear system allows the stepless adjustment of the transmission via a
twist grip.
• For starting or riding up a hill, change to a
low gear ratio: Turn the controller twist grip
to the “Mountain“ display direction (A)
• For higher speeds, change to a higher gear
ratio: Turn the controller twist grip to the
“Level“ display direction (B)
Changing gear during the ride
“Changing Gear“ at standstill
Optimized hub gears do not allow the whole transmission range for changing gear during
standstill.
Normally, 5070% of the transmission gear range is allowed during standstill. The remai-
ning range can be set during the ride.
4. OPERATING THE BIKE 4.2. DRIVE UNIT
4.2.1. BELT DRIVE UNIT
At delivery, the belt is tensioned optimally and is not to be re-tensioned, neither
aer the prolonged use of the drive. When mounted correctly, a high load can be
placed on the belt in pulling direction. The carbon fibers embedded in the belt
are very flexible, but react very sensitively to:
KNICKING
TURNING UPSIDE
DOWN
TWISTING
BINDING TOGETHER
PULLING UP BY THE
SPROCKET WHEEL
BENDING BACKWARDS
USE AS A STRAP
WRENCH
PULLING UP BY THE LEVER