RAMBO R750 User manual
RAMBO Bike Owner’s Manual
For Pedal and E-bike Models
1
RAMBO Bike Owner’s Manual
and General Warnings
is manual explains how to assemble and operate
your new bike safely. It also shows how to perform
basic maintenance and tuning. Some basic mainte-
nance and tuning can be performed by using this
manual as a guide, however detailed repairs and gen-
eral maintenance should be performed by a qualied
technician at a local bike shop as this manual is not
intended as a comprehensive service, maintenance,
use, and repair manual. Contact or consult your local
bike shop for all repairs, service, and maintenance.
ere are many classes and riding clinics available
for riders of all skill levels, please consult your bike
shop for more information.
is owner’s manual must be read in its entirety by
everyone including technicians performing mainte-
nance before operating and/or riding this bike.
As a parent or guardian, you are responsible for the
activities and safety of your minor child, and that
includes making sure that the bike is properly tted
to the child and is in good repair and safe operating
condition. You must ensure that your child under-
stands the safe operation of this bike and also follows
all trac and bike laws and regulations in the area in
which the bike is being operated.
Meaning of special symbols and lettering
Register your bicycle
Please refer to the web address on the back cover of
this manual and follow the links to register your new
bike. Your registration is very important so Rambo
Bike can communicate any updated safety informa-
tion. If you choose not to register, make sure you
check our web site oen for any safety instructions or
information we may post or contact Rambo directly.
Assembly of your new bicycle
See Section 4 for Assembly Instructions
IMPORTANT INFORMATION BEFORE
YOUR FIRST RIDE
Your dealer or bike shop should t you with the
proper size of bike.
- e seat may be
adjusted to oer
the best comfort
and performance.
- General recom-
mendation is a
minimum of 1” of
stand-over height
CAUTION
!
In this manual, the CAUTION sign indicates a haz-
ardous situation which, if not avoided, may result
in minor or moderate injury.
WARNING
!
In this manual, the WARNING sign indicates a
hazardous situation which, if not avoided, could
result in serious injury or death.
WARNING
!
Remove the battery before attempting to service,
making adjustments or performing any mainte-
nance on this Rambo bike. Removing the battery
will help ensure the motor is not started inad-
vertently while service or maintenance is being
performed. See Figure 7 for battery removal in-
structions. e battery should be removed anytime
the bike is stored or is le unattended to prevent
unauthorized use or accidental engagement of the
motor. Keep out of reach of children. Failure to
remove the battery can result in serious injury or
death.
WARNING
!
Never use a battery that is cracked or broken. Bat-
tery acid is highly corrosive and can cause severe
burns if it comes in contact with your eyes or skin.
2
SECTION 1 - GENERAL WARN-
INGS
Brakes & Stopping Power:
e Rambo Bike comes equipped with disc brakes.
ese brakes are dierent from other general types
of brakes associated with bikes. Some bikes typi-
cally have rim brakes which operate by squeezing
the wheel rim between two brake pads. Disc brakes
squeeze a hub-mounted disk between two pads.
Stopping power on your bike can vary depending on
adjustments and pad thickness and wear. Consult
your bike shop about brake options and adjustments
based on your specic needs.
Additional Brake Warnings
Disc brakes have varying amounts of stopping power
depending on adjustments and pad condition. Use
extreme caution when applying the brakes. Nev-
er apply the brakes too hard or too quickly which
could cause you to lose control and fall. Excessive or
sudden application of the front brake could pitch the
rider over the handlebars which may result in serious
injury or death.
Never ride with worn brake pads or improperly ad-
justed brakes.
Front Wheel and Foot Contact
Do not pedal when
riding slowly if
the handlebar is
turned. It is possi-
ble for your foot to
contact the front
tire if the handle-
bar is turned while
you are pedaling.
is will result in a
dangerous situation
which may cause
you to lose control and fall. is does not usually
occur at normal riding speeds.
INSPECT YOUR BIKES FRAME AND FORK
If you notice during your pre-ride inspection that
the frame or fork has any visible damage, cracks,
dents, or problems, do not ride your bike and have
it repaired immediately. If at any time you notice a
shimmy or wobble immediately slow down and take
your bike to your local bike shop for inspection and/
or repair.
WARNING
!
Improper use of the braking system, including
over-use of the front brake, can cause you to lose
control and fall. Avoid improper braking by under-
standing and practicing proper application of your
brakes as explained in this manual.
WARNING
!
Contact between your foot or toe-clip and the front
wheel or fender can cause you to lose control and
fall. Avoid pedaling when turning at slow speed.
WARNING
!
A shimmy, or steering wobble, can cause you to
lose control and fall. If you experience a shimmy,
slow down immediately. Take your bicycle to your
dealer for inspection and repair.
WARNING
!
Disc brakes could have sharp edges that could cut
you. Also, aer extended use, your disc brakes may
get extremely hot, take special care not to touch
them until they have cooled.
3
BIKE INSPECTION BEFORE EVERY
RIDE
Before every ride, inspect the bike with the following
check list. If any part of the bike fails the inspection,
repair the bike by following the information provid-
ed in this manual or take the bike to your bike shop
for service. Never ride a bike with a damaged part;
have it replaced.
Check the tire
ination
- Make sure to
check tire pressures
using a tire pressure
gauge. e tires
should be set be-
tween 7psi and 15
psi caution never
set below 7psi or
above 15ps.
Tires and Wheels
- Spin each wheel and check that the tires are in good
shape with no cuts or abrasions. If these are found,
replace the tire immediately.
- Inspect the rim for trueness by spinning it and
watching for any side-to-side or up-and-down wob-
ble. If any movement is noted do not ride this bike
until the rim is repaired.
Wheel Retention System
Some bike wheels are
designed with quick
release attachments
and others are bolt-
ed directly on using
a hex-nut. ere are
3 main methods of
attachment as listed
below:
1. A hollow axle with a
“skewer” sha running
through it which has a nut on one end and an over-
the-center cam on the other end.
2. A hollow axle with a “skewer” sha running
through it which has a nut on one end and a hex-key
or other tightening device on the other end.
3. Hex nuts or Hex key bolts are threaded into or on
to the hub axle.
Brake Reach
Some bikes have adjustable brake levers. ese can be
adjusted to t each individual rider’s specic needs.
For example, if you have a short reach you may need
the levers adjusted closer to the handlebar. is ad-
justment or brake lever replacement should be done
by a qualied bike technician or bike shop.
Handlebar stem and front wheel alignment
Make sure the front wheel and handlebar stem are
aligned in the proper orientation of each other.
Turn the handlebar from side to side with the front
wheel locked between your knees to test the stem
connection of the fork. If any movement is noted do
not ride the bike until this is corrected.
Inspect cable routing to be sure the handlebars can
turn freely without binding or pinching the cables.
Check to be sure that your handgrips on the han-
dlebars are in good condition and the bars are not
protruding through the grip.
Seat Position
e saddle should be adjusted for proper t and is an
important factor in riding safely.
Place your pedals in the 6 o’clock and 12 o’clock po-
sition. Your bottom leg should be very slightly bent
when the ball of your foot is placed on the lower ped-
al. If it’s bent too much you need to raise the saddle.
If you have to rock your hips to reach or can’t easily
reach, you must lower the saddle.
Ensure that the saddle is straight and level.
Seat and seat post
Check that the seat is securely mounted on the seat
tube by liing up and down on the seat. is should
WARNING
!
A wheel attachment device that is not properly
adjusted and closed may allow the wheel to be
loose or come o unexpectedly, causing you to lose
control and fall. Make sure the wheels are properly
attached before riding the bike.
CAUTION
!
Disc brakes and discs get very hot during use and
could burn skin. Also, the disc edges may be sharp
and could cut skin. Avoid touching the disc or disc
brake when hot, or when rotating.
4
not tilt or move. Next, check the security of the seat
tube in the frame by attempting to rotate the seat.
If the seat rotates, then the seat tube is not properly
clamped in to the frame.
Check the lights and reectors
Make sure the
reectors are
mounted in the
proper position
and they do not
have any cracks
or visible damage.
All lighting should
be inspected to
be sure they have
fresh batteries and
working properly.
Check frame, fork, and components
If you notice that the frame or fork has any visible
damage, cracks, dents, or you hear any unusual nois-
es while riding or other problems, do not ride your
bike. If at any time you notice a shimmy or wobble
immediately slow down and take your bike to your
local bike shop for inspection and/or repair. Careful-
ly inspect your bide before and aer each ride.
Certain types of impacts can aect the components
of your bike and cause them to fail unexpectedly.
Aer any impact or crash, thoroughly inspect all
the parts of your bike for damage. A crash or other
impact can put extraordinary stress on the bike. An
impact or high force is any situation such as hitting a
hole or obstacle in the road, such as a bump or curb.
WARNING
!
A bike is a mechanical device. Materials and mech-
anisms are subject to fatigue and stress. Over time,
components can fail once they have exceeded their
useful limits and life. Product life is oen related to
the kind of treatment and riding you submit your
bike to. Hard and aggressive riding along with ne-
glect will shorten the projected lifespan of your bike
and its components. If not properly maintained,
your bike and its components can fail causing seri-
ous injury or death.
5
RULES FOR SAFE RIDING
You must ensure that you understand the safe oper-
ation of this bike and follow all trac and bike laws
and regulations in the area in which the bike is being
operated. ese may include rules regarding helmets,
reectors, and lights.
A few important general rules for riding include but
are not limited to:
Wear a helmet that
meets CE or CPSC
safety testing re-
quirements
- Have reectors
and lights installed
on your bike
- Use proper hand
signals
- Avoid loose
clothing
- Ride on the cor-
rect side of the roadway with ow of trac
- Always wear bright color and reective clothing
- Ride single le if riding with others
- Obey all trac laws and regulations
- Watch for parked car doors opening unexpectedly
- Watch for pedestrians stepping out, pets and chil-
dren playing near
roadways
- Never carry a passenger
- Never ride with earbuds or headphones
- Always obey trac signals
- Use caution when crossing railroad tracks and care-
fully cross at a 90 degree angle
- Mount a horn or bell on to your bike to signal oth-
ers of your approach
Before riding fast or in more dicult conditions, try
riding at slower speeds in a at, open lot to test the
function and performance features on your bike.
Consult your local bike shop if you have specic
needs on parts and functionality of your bike. Many
areas oer cyclist courses or classes which can be
found online or through your local bike shops.
Wet Weather Conditions
Use extra caution when riding in wet weather. Your
brakes stopping power will be diminished in wet
conditions no matter what type of brake system
you have, all are aected by wet weather. In order
to ensure you can stop safely in wet conditions, ride
more cautiously and slowly and brake earlier than
you would in normal road and weather conditions.
Never ride in storms with high winds and lightening
conditions.
Night Riding and Poor Visibility
Riding at dawn, dusk, during poor visibility or night
riding is extremely dangerous. Your reectors are not
a substitute for required bike lights. Motorists and
pedestrians may not be able to see a bicyclist during
poor visibility conditions. Consult your local bike
shop for night riding equipment if you choose to
accept the risk of riding during these conditions.
Unsafe Riding
While not all accidents can be avoided the list below
is just a few examples of things you can do to help
decrease your risk of serious injury or death.
- Pay attention and avoid distractions while riding
- Maintain both hands on the handlebars at all times
- Avoid bike stunts and/or aggressive riding
- When carrying gear make sure it is securely at-
tached to your bike and/or rack.
- Never strap or lash any item to your bike in an area
not designed to carry gear.
- Only carry gear on your racks and within the stan-
dard weight limits of the rack.
- Do not ride while intoxicated or using medications
which might make you drowsy.
- Never carry a passenger while riding
WARNING
!
Riding a bicycle in low light conditions without
proper lighting and reectors attached to your bike
impairs your ability to see and be seen by other
motorist or pedestrians. is greatly increases the
chance you will be involved in an accident that
could lead so serious injury or death. use a light
on the front and rear of your bike and be sure all
reectors are in place before riding in low light
conditions.
WARNING
!
Certain types of riding signicantly increase stress-
es and abnormal wear and tear on your bike.
. competition or stunt riding
. downhill racing/riding
. jumping your bike
the above list is just a few of the types of riding that
can adversely aect your safety and lifespan of your
bicycle and its components.
6
Avoid riding too fast
Higher speeds create higher risks and greater forces
in the event of a crash. At higher speeds, it is more
likely that wheels will slip, or that a small bump can
create a signicant impact to your frame or fork.
Keep your bicycle under control at all times. For chil-
dren, the limit of speed for safe riding is much lower,
so parents should strictly enforce this rule.
O-Road or Backcountry Riding
Always use special care when riding o-road or in
remote areas. If you are unfamiliar with o-road
riding start out on moderate terrain and slowly build
your skills until you are condent you can ride on
trails and unimproved roads. Remember, keep your
bike under control at all times and never attempt an
obstacle that is beyond your skill level. Riding at an
increased speed in rough conditions greatly increase
your risk of serious injury or death.
Special Considerations for Remote Areas
- While riding on rough terrain even if a short dis-
tance share your destination and route with a compe-
tent adult
- Never ride alone in remote areas
- Carry a signaling device such as a whistle, cell
phone, or 2-way radio
- Take identication and emergency food and drink
- Wear appropriate clothing and safety gear for type
of riding you plan on
- Carry a rst aid kit
Respect local regulations and rules / Private Property
Remember each area in which you may ride your
bike may have specic regulations. Always respect
private property and never trespass. Respect the
rights of others with whom may be sharing the trail
with you; ie: hikers, cyclists, equestrians. Stay on your
designated trail and do not destroy vegetation and
minimize your impact on the environment.
WARNING
!
A bike like any mechanical device is subject to
fatigue, stress and wear, Over time and due to use
the frame and its components can fail. e envi-
ronment and type of riding the bike is subjected to
can greatly reduce its useful lifespan. If proper care
and maintenance are not performed your bike and
or its components can fail causing serious injury or
death.
7
SECTION 2 GENERAL RIDING
INFORMATION
Once you have inspected your bike and all compo-
nents are in proper working condition, you are ready
to test ride your new bike. A few important general
rules for riding in-
clude but are not
limited to:
- Strap on your
helmet that meets
CE or CPSC safe-
ty testing require-
ments
- Have reectors
and lights installed
on your bike
- Use proper hand
signals
- Avoid loose clothing
- Ride on the correct side of the roadway with ow of
trac
- Always wear bright color and reective clothing
- Ride single le if riding with others
- Obey all trac laws and regulations and trac sig-
nals
- Watch for parked car doors opening unexpectedly
- Watch for pedestrians stepping out, pets and chil-
dren playing near
roadways
- Keep a safe stopping distance between you and other
vehicles
- Never carry a passenger
- Never ride with earbuds or headphones
- Use caution when crossing railroad tracks and care-
fully at a 90 degree angle
- Mount a horn or bell on to your bike to signal others
of your approach
Braking
Your bike is equipped
with two hand brakes.
One hand brake op-
erates the front brake
and the other oper-
ates the rear. Take
time to familiarize
yourself with which
hand brake stops each
wheel. You can com-
plete this task by spin-
ning the front wheel
and squeezing each brake lever one at a time to deter-
mine which one stops the wheel from spinning; this
would be your front brake.
When preparing
to slow down or
stop, gently apply
both front and
rear hand brakes
at the same time
being careful not
to over apply the
front brake which
could cause you
to lose control and fall.
Shiing
Bikes oen come equipped with index shiers. ese
are usually mounted on the handlebars within easy
reach. Shiing gears into dierent gear combinations
can be accomplished by moving the shier from one
position to the next and allows you to choose the
gearing most suited to the terrain and type of riding.
Be sure to continue pedaling as you shi gears; never
pedal backwards during or immediately aer shiing
as this could cause the chain to fall o.
Some bikes are equipped with two derailleurs and
two shiers. One controls the front derailleur and
the other controls the rear derailleur. Take time to fa-
miliarize yourself with which shier operates which
derailleur. You can complete this task while standing
on the ground beside the bike (not riding) by mov-
ing the shier and watching the front derailleur for
movement. e shier that causes the front derailleur
to move operates the front derailleur and the other
shier will operate the rear derailleur.
WARNING
!
Avoid applying sudden or excessive force to the
front brake system. Doing this can cause your front
wheel to lock up and your rear wheel could li
up and loose contact with the ground. Slide your
weight back on the seat and apply pressure to both
the front and rear brakes at the same time.
8
SECTION 3 MAINTENANCE
AND CARE
Service
Before every ride complete the bike inspection out-
line in Section 1. If you identify any areas that need
adjustment or service, immediately take your bike to
a qualied bike technician for repair and service.
Before and aer every ride
- Check wheels
- Check tire ination
- Check handlebar and stem
- Check brakes
- Check seat and seat post
- Check lights and reectors
- Check frame, fork, and components
- Clean your bike
Monthly or every 100 miles
- Clean your bike thoroughly
- Lubricate chain rollers with bike chain lubricant.
- Squeeze and inspect brakes for wear and proper
working order
- Check reectors, lights, and seat/seat post for excess
wear or damage
- Check the frame, fork, handlebars, and stem for
cracks and damage
- Check each pedal to make sure they are not loose
- Make sure there is no rust or kinks in the control
cables or cable housing
- Check your wheel rims for excessive wear and dents
or for any loose or damaged spokes
- Check your tires for tire ination and excessive
wear, cuts, or abrasions
- Inspect shiers and derailleurs and lubricate derail-
leurs
Every 3 months
- Clean and polish your bike thoroughly
- Lubricate chain rollers with bike chain lubricant.
- Squeeze and inspect brakes for wear and proper
working order
- Check reectors, lights, and seat/seat post for excess
wear or damage
- Check the frame, fork, handlebars, and stem for
cracks and damage
- Lubricate handlebar stem and seatpost
- Check each pedal to make sure they are not loose
and lubricate
- Make sure there is no rust or kinks in the control
cables or cable housing
- Check your wheel rims for excessive wear and dents
and for loose or damaged spokes
- Check your tires for tire ination and excessive
wear, cuts, or abrasions
- Check crankset and bottom bracket
- Inspect brake levers, shiers and derailleurs
- Lubricate brake levers, shiers, and derailleurs
- Lubricate bottom bracket bearings, wheel bearings,
and suspension forks
If you are uncomfortable with any service or general
maintenance to your bike, please visit your local bike
shop for service and maintenance.
Take your bike to your local bike shop for inspection
aer 30 days or if you think something is wrong with
you bike take it in immediately.
Your bike and components are subject to wear and
fatigue. If a component’s life cycle is exceeded it can
suddenly fail which may cause serious injury or
death.
Take your bike to your local bike shop for repair and
service if you notice any of the following or any other
wear and fatigue:
- Any cracks, fraying, scratches, or discoloration.
- If your chain is not shiing quietly from gear to
gear the derailleur is out of adjustment.
- If the brake level fails
- Any signs of fatigue or excessive wear or damage
DO NOT RIDE YOUR BIKE, Take your bike imme-
diately to your local bike shop for repair and service!
9
Tools Needed: What tools are needed – list those
here (not included in packaging):
- 4mm Allen Key
- 5mm Allen Key
- 6mm Allen Key
- 13mm Open Ended Wrench
- 15mm Open Ended Wrench
Fig 1. Unpacking your Rambo Bike:
• Carefullyremovebikeandcomponentsfrom
the carton as shown in Figure 1
• Checktobesureallcomponentsarepresent
and not damaged
- Frame with rear wheel attached
- Front wheel
- Skewer
- Handlebar assembly
- Seat and seat post assembly
- Pedals (le and right)
- Motor (E-Bike only)
- Battery (E-Bike only)
- Charger (E-Bike only)
- Controller display (E-Bike only)
Serial Number:
• Locateyourbikeserialnumberwhichis
stamped and located on the front steering stem tube
as shown in Figure 2.
• Writedowntheserialnumberintheowner’s
manual and store in a safe place.
Section 4 - Assembly Instructions
is manual provides instructions on how to assemble your new Rambo Bike as it comes from the factory. If
you feel you do not understand the instructions, have the proper tools or would prefer a qualied technician
to perform the assembly, take your new Rambo Bike to your local bike shop.
is manual may contain some illustrations and information that does not apply to the model of bike you
may have. Some of the information contained in this manual refers to bikes in general as there are many
models, with a variety of equipment, so no one manual can cover them all. If you have any questions aer
reading the information in this manual, contact your local bike shop or Rambo directly.
Front Wheel Assembly:
Read all warning labels associated with this product.
Figure 3
Figure 3
Figure 2
10
• Removetheadjustingnutfromthequick
release skewer. Remove the cone spring next to the
tension adjusting nut as shown in Figure 3.1.
• Slidetheskewerthroughthehollowhubaxle
of the wheel so that the quick release lever will be on
the right side of the bike when the wheel is installed
as shown in Figure 3.2
• Placetheconespringthatyouremovedback
onto the skewer. e small end of the spring should
be facing the hub. read the tension adjusting nut
onto the skewer as shown in Figure 3.3
• Placethewheelassemblyintotheforkdrop-
outs being careful to align the brake disc into the
caliper slot as the axle is installed into the fork drop-
outs.
• Movethequickreleaselevertoaposition
halfway between the OPEN and CLOSED position
(perpendicular to the bicycle frame). Figure 3.4
Adjusting Nut
Cone Spring
Quick Release Lever
Figure 3.1
Figure 3.2
Figure 3.3
• Turnthetensionadjustingnutuntilitcan
no longer be turned by hand and check to be sure
the tension nut is rmly against the fork dropout as
shown in Figure 3.5
• Ensuretheaxleispositionedcorrectlyinthe
forks dropouts.
• Checkbrakerotoralignmentinthecaliper
slot. e wheel should rotate freely without the cali-
per rubbing or binding.
• etireshouldbeanequaldistancefrom
each side of the fork.
• MovethequickreleaselevertotheCLOSED
position as shown in Figure 3.6.
• Besurethequickreleaseleverisalltheway
to the CLOSED position.
Figure 3.4
Figure 3.5
Figure 3.6
11
Note: if the Quick Release Lever can easily be pushed
to the CLOSED position, this means that it is not
secured tightly enough. If this is the case, move the
quick release lever to the OPEN position and tighten
the tension adjusting nut an additional 1⁄8 - 1⁄4 revo-
lution to increase the clamping strength, then return
the quick release lever to the CLOSED position. If
the Quick Release Lever can still be easily pushed
to the CLOSED position, repeat the procedure until
proper adjustment is obtained.
• Checkagainthatthewheelshouldrotate
freely without the caliper rubbing or binding. e
tire should be an equal distance from each side of the
fork.
• eLevershouldalwaysbeontherightside
of the bike and pointed to the rear of the bike.
• MakesuretheQuickReleaseLeversareinthe
CLOSED position before riding your bike.
• erearwheelcomesassembledonthe
frame. e rear wheel is secured to the frame with
a solid axle and two (2) retaining nuts. (No quick
release)
• Youmustchecktheretainingnutslocatedon
each end of the solid axle to be sure they are tight.
• Ensurethediscbrakerotorisproperly
aligned in the brake caliper and the wheel is properly
aligned in the frame.
• ewheelshouldrotatefreelywithoutthe
brake rotor rubbing or binding in the caliper. e tire
should be set evenly between the closest points on
each side of the frame.
Handlebar Assembly:
• Carefullyremoveprotectivepackaging
• Inspectcables,levers,electronics‘ifequipped’
and shiers for damage.
• Removefactoryinstalledfrontplateonthe
steering stem as show in Figure 4.1
• Placehandlebarintostemandreplacefront
plate making sure the handlebar is equal in length on
both sides.
• Ensurelengthsareequalonbothsidesfor
correct positioning of handlebars as shown in Figure
4.2
• Forathandlebarsthecontrolsareroughlyat
a 45° angle with the ground. Once desired handlebar
position is found you will now need to tighten the
bolts on the front plate of the stem.
• Followthesesimplestepsandrepeatuntil
the handlebar is stable and the recommended torque
settings are reached:
- Beginning with the top le bolt use the cor-
rect size allen key to turn the bolt clockwise two full
turns
- Repeat this step for the bottom right bolt.
- Repeat this step for top right bolt
- Repeat this step for bottom le bolt.
• Repeatthissequenceoneturnatatimeuntil
spaces between the face plate and stem are even at all
four points as shown in Figure 4.3
• Torquesettings:Fora5/6mmboltsa9N/M
maximum torque must be applied
Figure 4
Figure 4.1
Figure 4.2
Figure 4.3
12
Figure 5
Saddle Assembly:
• Loosentheseatpostclamp.Ifyourbikehas
a quick release lever rotate the quick release clamp
until it is fully open.
• Quickreleaseleversoperatewithanadjusting
nut at one end, and a lever on a cam at the other end.
• AlwaysadjusttheQuickreleaseclampwith
the lever in the open position, and by turning the nut
(not the lever) as shown in Figure 5.2
• Inserttheseatpostintotheframetube.Slide
WARNING
!
Your seat post must be inserted in the frame seat
tube far enough so that the Minimum Insertion
Mark (gure 5.1) cannot be seen.
Failure to do this may cause the seat post to break,
which could cause you to lose control and fall re-
sulting in serious injury or death.
it down to the desired height, ensuring the minimum
insertion mark cannot be seen as shown in Figure 5.3
• Checkthatthesaddleisalignedwithframe
and set at the correct angle. To align the saddle, stand
over the bike and align the nose of the saddle to run
parallel with the top tube of the frame. Once the
saddle is correctly aligned tighten the adjusting nut
and then closed the quick release lever as shown in
Figure 5.4
• Adjustingseatheightforpropert.Geta
friend to help, lean against a wall or use a trainer.
• Placeyourpedalsinthe6o’clockand12
o’clock position. Your bottom leg should be very
slightly bent when the ball of your foot is placed on
the lower
pedal. If it’s
bent too
much you
need to raise
the saddle.
If you have
to rock your
hips to reach
or can’t easily
reach, you
must lower
the saddle.
Figure 5.2
Figure 5.1
Figure 5.3
Figure 5.4
13
Pedal Assembly:
• IdentifyLevs
Right pedal. ere is a “L”
or “R” stamped into the
metal part of the pedal
near the threaded part that
looks like a screw as shown
in Figure 6.1
Note: they are not the
same!!
• InserttheLePed-
al into the Le pedal arm
and turn the thread counter
clockwise by hand.
Note: e right hand side of
the bike is the chainwheel
side of the bike.
• Fullytightenwitha
15mm open ended wrench.
• InserttheRightPedal
into the Right pedal arm and
turn the thread clockwise by
hand.
• Fullytightenwitha15mmopenended
wrench. See Figure 6.2
Battery Installation and Charging:
WARNING
!
Incorrect attachment of the pedal into the crank
arm can strip the threads in the crank arm, or the
threads on the pedal spindle. Doing this will cause
costly damage. And may result in a dangerously
loose pedal.
Figure 6.1
• Yourbikemaybettedwithanelectricmo-
tor and lithium ion battery.
• ToInstallthebatteryfollowstepsbelowand
see gure 7.
- Find the battery keep-
er bracket located on the
main frame bottom tube.
- e battery and
battery keeper bracket are
designed with coupling slots
in each.
- Place the battery in a
position slightly above the
mounting bracket.
- Align the slots and
push the battery rearward
causing the slots on the keeper
bracket to engage the battery.
- Use the key to lock
into position.
- Once locked the
battery cannot be removed
without the key.
- Use the key to unlock
and reverse this process for
battery removal.
- e battery can be
charged while attached to the
bike or can be removed for
charging.
- Follow instructions
supplied with charger.
Figure 6.2
Figure 7
Lock battery
Lock
14
Check every component and accessory on your new bike to be sure it is properly mounted, tightened and
adjusted before riding.
Charging for the
removed battery
Charging for the
battery which at-
tached on bike
Custom Rambo Bike accessories
also available. Check them out
online at www.rambobikes.com
R160 Camo Accessorry Bag (For use
with all Rambo bikes)
R150 Extra Large Luggage Rack (For use
with all Rambo bikes)
R180 Aluminum Bike/Hand Cart
(For use with all Rambo bikes)
15
Section 5 - BB5 Installation &
Set-Up Guide
Figure 1. INSTALL ROTOR
Mount the rotor to the hub using the supplied T-25
TORX® bolts and tighten to the specied
torque. Avid
logo MUST
face out.
Install the
wheel into
the fork or
frame.
WARNING:
IF YOU ARE USING A HUB WITH A REMOV-
ABLE SHIM, YOU MAY NEED LONGER ROTOR
MOUNTING BOLTS. CONTACT THE HUB MAN-
UFACTURER FOR THE RECOMMENDED BOLTS.
Figure 2. MOUNT FRONT CALIPER
Mount the front caliper to the fork.
I.S. MOUNT
Loosen the CPS
bolts, then bolt
the caliper to
the mounting
tabs. Tighten the
mounting bolts
to the specied
torque. Check that
the caliper moves
freely on the CPS
hardware.
Figure 3. MOUNT REAR CALIPER
Loosen the CPS bolts, then
mount the rear caliper to the
I.S. tabs on the rear of the
bike. Tighten the mounting
bolts to the specied torque.
Check that the caliper
moves freely on the CPS
hardware.
Figure 4. INSTALL
THE CABLE
Pass the brake wire through the anchor bolt on the
actuating arm. Cable slack may be removed with a
fourth hand tool.
TORQUE TO:
6.2 Nm (55 in-lb)
TORQUE TO:
9-10 Nm (80-90 in-lb)
Loosen before
mounting
TORQUE TO:
5-7 Nm (40-60 in-lb)
Loosen before mounting
Be careful not to advance the torque arm as you pull
the cable. Tighten cable anchor bolt to the specied
torque. Use the barrel adjuster at the brake lever to
remove any remaining cable slack (if there is any).
Figure 5. ALIGN THE CALIPER
A. Use your ngers or
a wrench to turn the
inboard pad adjustment
knob clockwise until
the rotor is centered in
the caliper. is positions
the pads for the next step
in the installation.
B. Make sure the
CPS bolts are loose
enough for the cali-
per to move freely.
C. Squeeze the brake
lever to compress the
brake pads rmly on
the rotor.
D. While still holding the
brake lever, tighten the CPS
bolts.
Once they are tight, you can
let go of the lever.
IMPORTANT:
AFTER THE CABLE IS
ANCHORED, CHECK TO BE
SURE THERE IS NO MORE
THAN 20MM (3/4 IN) OF
EXCESS CABLE BEYOND
THE ANCHOR BOLT. TRIM
AS NECESSARY
TORQUE TO:
5-7 Nm
(40-60 in-lb)
Make sure the
barrel adjuster is
screwed all the way
in before installing
the cable.
Caliper
Rotor
Brake pad
Turn adjustment knob until the
rotor is centered in the caliper
Even Spacing
TORQUE TO:
8-10 Nm (70-90 in-lb)(in an
alternating fashion)
16
Figure 6. ADJUST THE PADS
Back the adjustment knob o (counterclockwise) un-
til the rotor spins freely. Now you can dial the pad in
or out until you nd the
brake action you prefer
(make sure, of course,
that there’s no drag on the
rotor). If you can’t seem to
get the feel you like, or the
rotor is dragging, repeat
Figure 5.
FINE TUNING
BEFORE EACH RIDE
•Checkcablesforsignsofwearorfraying.
•Squeezethebrakeleverrmlyandcheckforproper
brake function. Adjust for pad wear if necessary.
•Checkpadsforwearandreplaceifnecessary.
•Ensurerotorsarefreeofforeignsubstancesand
oils.
CABLE SLACK ADJUSTMENT
Use the barrel adjuster on thebrake
lever to remove any cable slack from
the system. Turn the adjuster out until
there is no free play in the lever but not
so far that the torque arm on the caliper
is advanced. e torque arm should
return completely when the brake lever is released. If
necessary, repeat Figure 6.
Note: New cables will stretch and require adjustment.
PAD BREAK-IN
It may take anywhere from 20 to 40 complete stops
to break in Avid pads. You may begin to notice an
increase in braking power aer the rst ride. Brake
noise can occur not only during the break-in period
but o and on throughout the life of the brake pads.
Noise is dependent upon factors such as brake setup,
rider weight, riding style, braking style, and riding
conditions (i.e. dust, soil, and contamination of fric-
tion surfaces).
CARE AND CLEANING
Extreme care must be taken when cleaning both the
bicycle and its new disc brakes. Under normal use,
it is not necessary to clean the caliper rotor or pads.
If necessary, use only water and dish detergent to
wash the caliper and rotor – being sure to thoroughly
rinse all soap residue from the rotor. Dry with a clean
paper towel.
SPRING TENSION ADJUSTMENT
If necessary, spring tension can be
adjusted by turning the spring tension
adjustment screw with a 2.5mm hex
wrench.
Turning the screw clockwise increases
spring tension,
which equals harder lever pull.
PAD WEAR ADJUSTMENT
Over time, you will need to compensate for brake
pad wear.
You can do so with two
very simple adjustments:
1. Unscrew (counter-
clockwise) the barrel
adjuster on the caliper.
2. Turn the inboard pad
adjustment knob clock-
wise.
Both of these adjustments move the brake pads
closer to the rotor. You do need to adjust both pads
as they wear.
Try dierent settings until the brake feels just the way
you like.
NOTE: While you can perform a similar adjustment
on the barrel of your brake lever, we suggest that you
adjust for pad
wear at the cali-
per. at way you
leave the brake
lever for on-the-
y adjustments.
PAD REPLACEMENT
A pad should be replaced when its total thickness
(backing plate and friction material) is less than
3mm.
1. REMOVE THE OLD PADS
Back the inner adjustment knob all the way out
(counterclockwise). Pull the pad spreader clip from
between the pads, then pull the pads out of the cali-
per one at a time.
2. INSTALL THE NEW PADS AND SPREADER
Insert the new pads one at a time into the caliper.
VERY IMPORTANT: MAKE SURE YOU PLACE
THE BLACK PAD ON THE INNER SIDE (TO-
WARDS THE WHEEL) AND THE BLUE PAD ON
THE OUTSIDE (AWAY FROM THE WHEEL.)
ONCE THE PADS ARE IN THE CALIPER YOU
Barrel adjuster
Make sure you tighten the
locknut aer you adjust.
17
CAN SLIDE THE SPREADER CLIP BACK INTO POSITION – BETWEEN THE PADS.
Black pad “Le”
Black pad “Right”
Pad spreader
Pads
Pad spreader clip in place
Section 6 - Rear Derailleur Ad-
justment for Shimano 7 Speed
Gear shiing problems - If your chain comes o
when you switch to the granny chainring (i.e., largest
rear cog) or your derailleur is consistently having
problems keeping your chain on the correct cog then
you may be able to x the problem with a simple
adjustment. On a Shimano Altus 7 speed, the bar-
rel adjuster is the knobby adjustment mechanism
located at the point where the gear shiing cable
enters the derailleur, seen in the lower/center part of
the picture below. First, position yourself at the rear
of your bike so you can see how well the rear derail-
leur is lining up with your cogs. Second, tweak the
derailleur’s cable tension by slowly twisting the barrel
adjuster clockwise for problems shiing into a higher
gear or counter-clockwise for problems shiing into
a lower gear. Finally, test that the derailleur is center-
ing the chain on each of the cogs by shiing through
all of the gears. If this procedure does not solve the
problem then your derailleur may be bent and, thus,
it may require a more serious x.
(A) Cable adjustment barrel
(B) Adjustment bolt
WARNING
!
Please remove battery before adjusting to prevent
accidental motor engagement when you are making
adjustments.
18
Section 7 - C961 Dispaly Control-
ler
Material & color
C961 made of ABS is able to work well under -20 to
60 degree Celsius
Available color: Black and white.
Function
C961 gets many functions for your enjoying riding.
Show context:
◆Capacity
◆Speed (Speed/ MAX/AVG)
◆Distance (TRIP/ TOLTAL)
◆Time
◆ Assist walking
◆Backlight
◆Error code
◆Levels setting
Interface
Button
C961 gets three buttons:
Attention:
Don’t plug in/out this display when power on.
Avoid collision.
Keep the membrane for waterproof perfor-
mance.
Don’t abuse parameters resetting, in case out
of working.
Powe
r
Mode
Level
Walkin
g
Time
S
p
eed
Unit
Distance
Unit
TRIPODO
M
+
-
Call service if display out of working
ON/OFF
Long press Mode to start
display. Long press M again
to switch o.
Display o automatically aer
no any operation on
vehicle for ten munites (default).
Walking assist
Long press (-), to start assist walking. highlights
on scree. Vehicle goes at 6km/h.
Only in case of pushing, can this function be used.
Please don’t abuse when riding.
Backlight
Long press (+) to switch on backlight on scree, and
front light on as well if front light available. Long
press (+) again to switch it o.
Note: Automatical backlight is available if controller
gets this function.
Backlight & front light on automatically according
to the lightness outside if controller gets light sensor
inside. Automatical function o when manual oper-
ation on.
Level
Press (+) or (-) to change the levels. Default range 0 -
6, 0 no output, 6 max output. Default level 1 when
switch on.
Capacity
Four sections highlights when battery is full.
Percentage of capacity for sections:
<20% 20%-40% 40%-60% 60%-80% 80%-100%
Frame ashes at 1 Hz when low power.
Distance
Press M to shi TRIP and TOTAL.
TRIP clearance
Power on, long press M and (-) to clear TRIP dis-
tance.
Error code
When something goes wrong with system, error
code will ash on scree. Check details on attached
M
+
-
19
list.
RAMBO Bike stops working in case of any error.
Only when error is gone, can vehicle work again.
Setting
- Preparation
Makes sure good connection then power on.
- Setting
Long press M to start display. Long pree press (+)
and (-) to setting mode.
- Unit
Press (+) to change unit Km or Mile.
Press M to save and skip to speed setting.
- Speed limit
Limit range from 9mph to 19mph. Press press (+) or
(-) to change the limit.
Press M to save and skip to backlight setting.
- Backlight
Press press (+) or (-) to change the brightness, range
from 1 to 8.
Press M to save and skip to time setting.
- Time
Press (+) or (-) to change the hour, then press M to
minute setting, press (+) or (-) to change the minute.
Press M to save and exit.
Setting eects aer restart.
Advanced setting
Long press M to start display. Long pree press (+)
and (-) to setting mode, then press (+) and (-) and no
release, meanwhile press M eight times, to advanced
setting.
- Wheel size setting
Press (+) or (-) to change the wheel size. Range from
8 to 32 inch.
Press M to save and skip to sleep time interval set-
ting.
- Sleep time interval setting
Press (+) or (-) to change the time, range from 0 to
60 munites. Display will sleep and cut o power aer
no operation on system for the setted time. Press M
to save and skip to level amount setting.
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