Ruff Cycles Lil'MISSY 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
V2.0 February 2023
Layout, photographs and text: RUFF CYCLES GmbH, Regensburg, Germany
Text passages are 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. Vechile 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. Removal/Installation of the Baery 12
2.4. Switching ON/OFF the Drive 12
2.5. Adjusting Support Level 12
2.6. Switching ON/OFF the Lamp 13
2.7. Initial Engagement of Brake Discs 13
3. Before Each Ride 14
3.1. Checking the Tires 14
3.2. Checking the Brake System 14
3.3. Checking the Chain 15
3.4. Baery: Checking the Fixation and Charging Status 15
3.5. Checking the Fork 15
3.6. Checking the Screw Connections 16
3.7. Checking the Lights 16
4. Operating the Bike 17
4.1. Gear Derailleur 17
4.2. Drive Unit 17
4.2.1. Chain Drive Unit 17
4.3. Brake System 18
4.4. Side Stand 18
5. Ergonomic Seing 19
5.1. Brake Lever 19
5.1.1. Adjusting Brake Lever Position 19
5.1.2. Brake Grip Angle 19
5.1.3. Adjusting Brake Lever Distance 20
6. Maintenance 20
6.1. Wear Parts List 21
6.2. Recommended Maintenance Intervals 21
6.3. Aer an Accident 22
6.4. Baery 22
6.5. Tires 23
6.6. Changing Tires/Tubes 23
6.6.1. Dismounting the Front Wheel 23
6.6.2. Dismounting the Rear Wheel 24
6.6.3. Changing Tires/Tubes 25
6.6.4. Installing the Front Wheel 26
6.6.5. Installing the Rear Wheel 26
6.7. Chain Gear Seings 27
6.8. Brakes 27
6.8.1. Wear of Brake Pads and Discs 27
6.8.2. Checking the Brake Pads 28
6.9. Seing the Headlight Range 28
7. Cleaning and Maintenance 29
8. Transport on/by Car 29
9. Technical Data 31
9.1. Component List 31
9.2. Weights 32
9.3. Torque of Screws 32
10. Liability for Material Defects 33
11. EC Declaration of Conformity 34
12. Disposal 35

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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 Lil‘Missy.
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 Lil’Missy 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.
1. YOUR VEHICLE
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 mobility 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
1.1. INTENDED USE
Your Pedelec is intended for the transport of one person on asphalt roads and
rideable forest and land routes. The admissible total weight (bike + driver + ac-
cessory + baggage) amounts to 150 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
In the following text, your Lil‘Missy is called “Pedelec“

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YOUR VEHICLEYOUR VEHICLE
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.
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, can endanger your driving safety and convert the vehicle from a Pedelec into
a small motorcycle. You could be exposed to sanctions in accordance with trac,
licence and safety regulation with penal consequences!
A Pedelec accelerates faster than a bicycle. Be aware that other trac participants
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.
1.2. VEHICLE OVERVIEW
1. Hydraulic Disc Brakes
2. 7-Gear Shiig System
3. Chain Tensioner
4. Side Stand
5. Chain
6. Engine
7. Baery
8. Fork
9. Type Plate
10. Control Unit
The frame number is found on the engine
mount. The type plate is located on the
downtube.
Please note down the serial number of the Pedelec here:

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COMMISSIONINGYOUR VEHICLE
• Charging device
• 2 keys for securing the baery to the Pedelec
• 2 transport fixations for the hydraulic disc brakes
• Keychain
• Bicycle bell
• Reflectors set
• 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.
• 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 (1).
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!
Loosen it by releasing the 2 screws (2) of the stem. Now you can adjust the
compression of the steering bearing with the ahead bolt. Re-tighten the
stem screw with a torque of 67 Nm
• Finally, clamp the handlebar in the middle by tightening the bolts (3) 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 as-
sembly 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 15 open end
wrench at 3035 Nm
2.2. PEDAL ASSEMBLY
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”.
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!

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Removing the baery:
• Before removing the baery, ensure that
the system is disconnected. Turn the key
in the lock by 90° rotation while pulling the
baery from the upper bracket
• Pull the baery from the bracket
COMMISSIONINGCOMMISSIONING
2.3. REMOVAL/INSTALLATION OF THE BATTERY
2.4. SWITCHING ON/OFF THE DRIVE
2.5. ADJUSTING SUPPORT LEVEL
The Pedelec system can be switched on/o
in the following ways:
• Press the on/o buon of your board
computer when the baery is installed
• Press the on/o buon of the Pedelec
baery (see baery manual)
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.
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
2.6. SWITCHING ON/OFF THE LAMP
2.7. INITIAL ENGAGMENT OF BRAKE DISCS
• Make sure that the engine is on
• By pressing the buon “+“ for a few seconds,
front and back light will turn on
• To turn the lights o, press the “+“ buon for
a long time
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 blocking the wheels!)
• Repeat this procedure as oen as required in order to achieve an optimal
brake performance
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 on the le brake lever, or fully release the brake lever, when you
notice that the rear wheel is liing.

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BEFORE EACH RIDEBEFORE EACH RIDE
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.
• 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 two thirds travel of
the lever, pull the lever several times in a row (“pumping”). Check whether
the pressure 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 can be removed
• Are there any foreign objects (twigs) between the chain links?
→ If so: Remove them
• Is the chain very dirty?
→ If so: Rinse it with water or a proper cleaning solution. Then use a first
class chain lubricant
• Lubricate the chain at regular intervals, even when it is not dirty, in order to
prevent it from significant wear
• Breakage and deformations
• Secure fixation of the protective plate
• Firm screwing connection of the fork bridge
The chain is a product subject to wear. Please check the following items regular-
ly:
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:
Tire pressure: The allowed pressure range of the Tyron 20“ 98406 is between 1
and 1.5 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 to 1.5
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.
with alcohol. Do not use a conventional brake disc cleaning solution!
The pressure point is the lever position of the travel at which the brake is engaged. If bra-
kes 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 CHAIN
3.4. BATTERY: CHECKING THE FIXTATION AND CHAR-
GING STATUS
3.5. CHECKING THE FORK

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OPERATING THE BIKEBEFORE EACH RIDE
3.6. CHECKING THE SCREW CONNECTIONS
3.7. CHECKING THE LIGHTS
Before each ride, check the firmness of 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.
Also check that the following parts do not rotate:
Li the vehicle up slightly and let it fall to the ground on its tires. Check whether
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.
• Quick release of the front wheel
• Thru axle of the rear wheel
• Seatbench
• Handlebar
• Stem
4. OPERATING THE BIKE
4.1. CHAIN GEAR DERAILLEUR
4.2. DRIVE UNIT
With the shiing system, you can adjust the gear ratio using a shier lever.
4.2.1. CHAIN DRIVE UNIT
At delivery, the chain is optimally tensioned and must not be re-tensioned, neit-
her aer the prolonged use of the drive. The chain is continuously submied to
tensile load by muscle and engine power. This will extend it over time. Optimal
chain tension is maintained by the chain tensioner which also prevents the chain
from sagging. However, check the chain at a specialist worksite at regular inter-
vals, since a worn-out chain will damage the chain ring and sprocket.
Changing gears during the ride
• The front shi lever (A) has two levels
• Release the gearshi lever aer shiing so
that the gearshi lever can automatically
return to the starting position
• To go one gear lower on the sprocket, press
the front shi lever (A) on the right side of
the handlebar until it snaps into place for the
first time
• To lower down two gears on the sprocket, press the front shi lever (A) on
the right side of the handlebar until it engages a second time
• To shi up a gear on the sprocket, press the rear shi lever (B) on the right
side of the handlebar

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ERGONOMIC SETTINGOPERATING THE BIKE
4.3. BRAKE SYSTEM
4.4. SIDE STAND
Your Pedelec is equipped with hydraulic brake discs for a fast and safe stopping
action. Use both brakes simultaneously for an optimal and safe braking. The le
brake lever has an eect on the front wheel brake, the right brake lever has an
eect on the rear wheel brake.
The brake system is provided with a fully automated lining compensation. This
osets the wear of the brake pads, while the brake pressure point remains equal.
When manipulating your side stand, be cautious of the following:
The front wheel brake has a stronger delay eect than the rear wheel brake. Exercise the
purposeful use of the front wheel brake, so that you become familiar with its force.
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ing.
Riding with unfolded side stand may lead to falling. Moving the Pedelec backwards
with an unfolded side stand may lead to the clamping of the stand onto the crank.
→ Fold in the stand before starting the ride.
If you sit on the Pedelec while the side stand is folded out, it may fail.
→ Do not sit on the vehicle if the side stand is folded out.
Aer braking, especially aer long rides down the hill, the brake discs, brake calliper,
quick release and axis nuts can become very hot.
→ Do not touch the brake discs aer intense braking action. You could burn yourself.
5. ERGONOMIC SETTING
5.1. BRAKE LEVER
You can adjust the brake lever position on the handlebar, along with the brake
lever angle and lever width.
5.1.1. ADJUSTING BRAKE LEVER POSITION
For a firm grip on the handlebars when braking,
it is best to take the brake lever by your index
and middle finger. To achieve this position,
moving the lever sidewards, so that both fingers
can grip the brake lever as shown in the picture,
might be necessary.
You can move the brake grip on the handlebar
by loosening the hexagon socket screw on the
handlebar clip. If required, first use an appropriate Allen wrench for the loosening
and shiing of the engine operating unit or gear unit.
Once you have found the correct position, tighten the grips just as much as to
allow their rotation.
In the next step, adjust the brake grip angle.
5.1.2. BRAKE GRIP ANGLE
Adjust the brake grip angle so that with exten-
ded arms, your fingers rest on the brake levers
when seated on the Pedelec. Your wrist should
be stretched out as much as possible.
Aer adjusting the angle, re-tighten the lever
clamping bolt on the brake lever.