LPR LPR12 JNR MX-V2 User manual
OWNERS MANUAL | Model: LPR12 Jnr MX V2.0
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MODEL: LPR 12 Jnr MX
Recommended for ages 3 - 6
Maximum rider weight 30kgs
WARNING!
Before riding, please read and understand this
manual carefully.
To avoid serious injury, it is important to follow
all warnings as outlined in the manual.
LPR 12 JNR MX-V2
OWNERS MANUAL
Congratulations on your new
LPR Bike! We know you will be
happy with your purchase and
your kids will enjoy it for years
to come!
LPR Bikes is anAustralianowned,
familycompany,establishedto
create quality kid’s bikes thatare
unique and innovative.
This owner’s manual contains
important assembly and safety
information. It is important that
it is fully read and understood
before operation.
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Contents
WARNING
Please read this manual completely and carefully making sure you
understand all instructions before operating this bike
Before you ride………………………………………….……….….…….... 3
Safety advice, warnings and symbols…………............................................. 4
Electrical and lithium battery safety……………………………….....……...5
Warranty………………………………………………….……………...…..6
Getting to know your bike……….………………...................................….. 7
Bike controls………………………….……………………………....……...8
Assembly instructions……………………………………………….…….…9
Preparing for use and riding instructions………….…...………………....…16
Adjusting the bike to suit the rider…….………………………………....….17
Setting the speed limiter………………………….………………….….…...18
Charging instructions………………………………………………….…….19
Service and maintenance……………………………………………..…..….21
Pre ride checklist……………………………………………………….…....22
Bolt torque chart.………………..…………………...………………..……..23
Cleaning……………………………………………………………....….…..23
Storing your bike………………………………………………...……..……24
Transporting your bike…………………………………………………..…..24
Maintenance procedures……………………………………………..…........25
Troubleshooting guide………………………………………………….…....34
Troubleshooting electrical components………………………………....…...35
Wiring diagrams/schematics…………………………………………..…..…36
Specifications……………………...………………………………...…..….. 37
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Before you Ride
Dear customer:
Congratulations on your decision to purchase a Little Pro Rider Electric Bike!
Riding an LPR electric bike is a lot of fun and is the best way for your child to begin learning
the skills of riding motorcycles. Being super light-weight and near silent, they are excellent for
riding in urban backyard’s as there is no noise! This manual will give you an understanding of
the operation, inspection and basic maintenance of this bike. If you have any questions
concerning the operation, inspection and maintenance of this bike, please consult an LPR dealer
or a qualified electric-bike repairer. IT IS IMPORTANT TO ADHERE TO ALL SAFETY
RECOMMENDATIONS AND WARNINGS IN THIS MANUAL. Keep the manual for future
reference.
Important Note to Parents:
This bike is not to be treated as a toy. Before you let your child ride this bike, you should
read and understand all instructions and warnings in this manual. It is important to be sure your
child understands and follows them. Like any sport, bike riding involves risk. By choosing to
ride or let your kids ride, you assume the responsibility for that risk. You must understand that
riding a bicycle, electric bike or motorcycle is a dangerous activity that has the potential to
cause serious injury or death in the event of an accident. The risks of injury or death can be
reduced dramatically if the bike is ridden in a safe hazard free area, maintained correctly and
when correct safety gear is worn such as an approved motorcycle helmet and riding protective
gear. All children are different and have different levels of skill, physical abilities and judgment.
Some children may not be able to operate this bike safely. Parents should supervise their child’s
use of their electric bike at all times and ensure they ride the bike in a safe area that is legal to
your state regulations. Parents are responsible to determine if their child is capable of operating
the bike and ensure the speed setting is set to that child’s ability. They should only permit
continued use if the child is capable of riding the bike safely and in control. Jumping the bike
increases the risk of an accident greatly. Jump the bike at your own risk. Parents are responsible
for allowing their child to jump the bike. The LPR 12 Jnr MX bike is rated to handle only small
jumps up to 30cm in height.
Disclaimer:
This owner’s manual contains the latest information for this model at the time of going to print. Minor
differences cannot be ruled out, this may be to improvements in design and reliability that we are unaware
of at the time of print. All specifications are non-binding. LPR Bikes Australia Reserves the right to modify
or delete technical specifications, prices, colors, materials, services designs without prior notice or
specifying reasons. LPR Bikes Australia accepts no liability for misprints, deviations from illustrations or
specifications although we remain committed to our brand and products. LPR Bikes Australia Reserves the
right to stop production of a particular model or supply of spare parts for a particular model without prior
notice or specifying reasons. Being fully aware that the use of the product could cause injury, death or
damage to property. LPR Bikes Australia PTY LTD or any of their employees, will not be held liable for
any loss of damage or personal injury /death that may be caused by their products. Safety precautions,
maintenance, rider safety and electrical and battery safety is explained in this manual, but it is the owners
responsibility to understand current and local laws of using this product before operating. Use of an LPR
Bikes Australia PTY LTD bike/bikes/product is completely at you and your child’s own risk and hereby
waive, release, and discharge and his or her heirs, legal representatives, administrators, and executors for all
liability for or by reason of any damage, loss or injury (including death) to myself, my child, or my property
which has been or may be sustained with regard to an LPR BIKES AUSTRALIA Pty Ltd. product. By
agreeing to use an LPR product, this restricts you the owner from suing or otherwise claiming against LPR
BIKES AUSTRALIA PTY LTD, presently or at any future time, for damage, loss, or injury that may occur
to yourself, your child, or your property.
If you do not agree to this disclaimer, please do not use the product and return the product prior to use.
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Symbols used in the manual:
Hazard Warning Symbol –Indicates a danger that could lead to
fatal or serious injury if caution and correct measures are not taken.
Electric Shock Warning Symbol –Indicates an electrical danger
that could lead to fatal or serious injury if correct measures are not
taken.
Tool Warning Symbol- Indicates technical knowledge required for
the task to be completed safely. It is recommended that qualified
technicians complete all work with this symbol.
General Safety Advice and Warnings
Always wear an approved helmet, enclosed shoes and protective gear.
Children must always ride under adult supervision. A parent’s decision to permit the
child to ride this product should be based upon maturity, skill and ability to follow
rules.
Adults only to use the charger. Keep charger away from children and unplug it when
not in use.
Do not leave bike unattended when charging the battery.
Ensure the environment is safe for riding. Walk and check complete riding area prior
to letting your child ride in that area. Clear area of hazards like sticks or rocks that
may cause the rider to fall or impale a falling rider. Ensure creeks, dams, swimming
pools etc. and public roads cannot be accessed whilst riding.
Always familiarize yourself with local laws and abide by them.
Do not ride at night.
Do not submerge in water, do not leave bike in the rain or allow water to enter the
electrical components. Care must be taken when cleaning. See cleaning section on
page 23.
No doubling or carrying passengers. One rider at a time.
Ensure any loose clothing or long hair is restrained to prevent from entanglement in
rotating parts.
Ensure pre ride checklist is completed prior to each ride and each time after the bike
has been in an accident or fallen over. See checklist on page 22.
Do not exceed the max rider weight limit of 30kg.
It is recommended that a skilled technician builds this bike. Failure to install or
tighten parts on the bike correctly may cause rider to lose control or fall. If you are
having difficulty understanding these instructions, please contact LPR Bikes Australia
Pty Ltd via email: info@lprbikes.com for assistance.
Do not remove any warning labels from the bike or charger.
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Electrical and Lithium Battery safety
There is Billions of Lithium batteries in use these days powering our phones, laptops, cordless
power tools, E-bikes and EV’s. With the use of protection systems such as a BMS- a Battery
Management System, and correctly rated batteries, the risks of lithium battery incidents, fires or
failures is greatly reduced. But where there is stored energy there is still always risks. These
precautions below must be followed to avoid damage to the bike, possible property damage or
injury. Safety of lithium-based batteries is very important.
Precautions:
Use only the supplied charger. And follow charging instructions on page 19.
Do not leave bike unattended when charging the battery.
Do not attempt to alter, puncture or impact the batteries or change the electrical
system in any way.
Do not wet or submerge the bike or charger in water. Do not leave bike or charger in
the rain. The bike or charger is not completely waterproof, care must be taken when
cleaning the bike. See cleaning section on page 23.
Do not charge batteries near flammable products or liquids.
Charge the bike in a well-ventilated area, not near combustible material.
Never expose the bike or battery to extreme temperatures,
Operating temperature limits:
Charging: 0°C 45°C
Discharging (Riding): -20°C 60°C
Storage temperature limits:
Within 1 month: -5°C 35°C
Within 6 months 0°C 35°C
Be careful leaving bike unattended inside an automobile. In summer car/truck
interiors can reach 30°C degrees hotter than the outside temperature.
Disconnect the battery whilst transporting the bike or storing the bike.
Dispose of batteries or bike as per City/State/Country regulations.
Only persons competent in safe battery handling to remove and handle battery.
If at any time the battery becomes damaged, hot, begin to swell, discontinue use of the
battery. If charging, quickly and safely remove the bike from the charger and then
place bike in a well-ventilated area at least 2 meters from combustible material.
Monitor until sure the area is safe.
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Lithium batteries have 4 main risks:
1) Fire –Common causes are from puncture of battery cells, short circuit, or
overcharging.
2) Electric shock–When connected to 240v mains whilst charging; it is critical that
the bike is charged out of the rain and kept away from children whilst charging.
Never leave charging unattended.
3) Burns –From a fire, short circuit or D.C. arc.
4) Toxic fumes- From a fire or punctured cell.
If the internal contents of the battery come in contact with skin, wash the affected area(s) with
plenty of water immediately. If it comes in contact with your eyes, flush with water for 15
minutes and seek immediate medical attention.
IN CASE OF A BATTERY FIRE:
If the battery overheats, hisses or bulges, immediately move the bike away from
flammable materials and place it on a non-combustible surface in a well-ventilated area.
If possible, take the bike outdoors to burn out. Other cells may take hours to catch fire so
continue to monitor battery until sure the area is safe.
Call your local fire authority for assistance if needed.
DO NOT use water to extinguish.
A class D dry chemical extinguisher may be used.
Warranty
At LPR Bikes Australia, we want you to ride with a smile, knowing that you purchased your
bike with confidence. This is why we offer the original purchaser of a LPR12 Jnr MX™ Bike;
2 years warranty on the frame/forks*
6 months warranty on motor and electrical components*
12 months warranty on the battery*
No warranty on consumable parts*
What do I do if I have a faulty product?
If you’ve got any warranty issues, the quickest and easiest way is to get it resolved is to send an
Warranty Terms and Conditions
*This warranty applies only to the original owner of a LPR12 Jnr MX™ bike and is not
transferable to subsequent owners. Consumable parts (including grips, tubes, tyres, cables,
brake pads and saddle covering) are not covered by the warranty. The warranty does not cover
water damage to the electronics, paint damage, rust, corrosion, modifications made to the bike,
normal wear and tear, improper assembly or maintenance, installation of parts or accessories not
originally intended or compatible with the bike as sold and costs of installation, assembly and
disassembly. The warranty does not apply to damage or failure due to accident, abuse, misuse,
neglect or theft. Costs such as assembly, transport for faulty components are not covered by the
warranty.
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Getting to know your LPR12 Jnr MX:
Figure 1: Right Side View Model: LPR12 Jnr MX
Figure 2: Top View Model: LPR12 Jnr MX
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Bike Controls:
Description of Bike Controls:
1) On/Off button:
The On/Off button turns the bike power on or off. When ON, the button is in the
“depressed in” position and the battery level display will illuminate, letting you know
the bike is powered and ready to go. The twist throttle will now work.
When OFF, the button is in the “depressed out” position. This will turn the power off
to the bike. This button is used to turn off the power in the event of an emergency
which is commonly known on motorcycles as the “kill switch”.
2) Twist throttle:
Just like on a motorcycle, the speed is controlled with a twist throttle on the right hand
side of the handlebars. The throttle is spring return and variably controls the bikes
speed through the range of 90° of a turn.
3) Rear brake lever:
To operate the rear brake. Pull the rear brake lever in towards the handlebar with the
left hand. The lever is connected to the rear brake system with a cable.
4) Battery level display:
Displays an approximate level of the charge of the bike by measuring the battery
voltage.
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Assembly Instructions:
THIS IS A PARTIALLY ASSEMBLED BIKE REQUIRING THE
ATTACHMENT OF THE FOLLOWING PARTS IN ACCORDANCE WITH THE
MANUFACTURER'S INSTRUCTIONS:
Front wheel assembly
Front axle assembly
Handlebar and stem assembly
Motor connection
There are several other important steps to be taken before allowing your child to ride
the bike, please complete all assembly instructions from step 1 through to step 10.
Please read this manual completely and carefully making sure you understand all
instructions before operating this bike.
WARNING:
IN THE INTERESTS OF SAFETY IT IS RECOMMENDED THAT YOU
HAVE THIS BICYCLE ASSEMBLED BY A SKILLED BICYCLE MECHANIC
Tools required for assembly.
LPR Bikes Australia Pty Ltd do not supply tools with our products.
We recommend to use a torque wrench for all bolts during assembly.
Metric Hex key set including 2.5mm, 3mm, 4mm, 5mm, 6mm or “In hex”
sockets
Metric spanners and sockets. (16mm socket for front wheel nuts)
Torque wrench
Tyre pump
Tyre pressure gauge
Scissors (to remove packaging)
Carpet or a soft blanket to sit bike on during assembly to protect bike from
scratches.
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ASSEMBLY INSTRUCTIONS
1. Unpack your LPR 12 Jnr MX:
Remove packaging.
WARNING Dispose of packaging immediately. Packaging may pose choking hazard or
suffocation for small children.
2. Install stem and handlebars:
Remove the plastic cap from the steering stem. Ensure the wedge nut and washer at
the bottom of the stem is aligned, and gently insert into the headset of the bike.
Adjust height to suit rider size accordingly. Take care not to kink or bend brake
cable during installation.
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3. Tighten Handlebars:
Ensure handle bars are straight to the fork, using a 6mm hex Key, tighten bolt.
(Torque 20NM)
4. Insert Axle to front wheel:
Insert axle into front wheel. Take note of the order of the nut, tab washer, flat washer
and spacer. Once through, install spacer, flat washer then tab washer in that order and
then just start the nut a few threads leaving it loose.
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5. Mount Wheel:
To mount the front wheel, loosen the wheel nuts. Slide the wheel onto the forks,
ensuring the tab washer and nuts are on the outer side of the fork legs and the flat
washers and spacers on the inside of the fork legs as the picture above.
6. Tighten Front Wheel:
Ensure the tab washer is positioned so the tab sits into the tab washer locating hole.
Use 16mm spanner and torque wrench to tighten wheel nuts on both sides. (Torque
40NM)
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7. Brake Lever:
Set the position of the brake as the above image and tighten the bolt using a 5mm Hex
key. (Torque 4NM)
8. Check/tighten throttle:
Loosen bolt and twist the throttle assembly so the on/off switch is easily accessible
from the rider’s position. Slide the throttle assembly along the handlebar so the
clearance between the bar end and throttle tube is 1-2mm. Tighten using 3mm hex
key (Torque 4NM). Once tight, test by twisting throttle and check it spring returns
easily.
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9. Inflate Tyres:
Inflate front and rear tyres to 15psi or 103kpa.
Ensure tyre bead is even and concentric to the rim. Tyre may need to be deflated,
realigned and then re-inflated again.
Tip: to reduce bike bouncing on bumps, lower pressures as low as 10psi for
lightweight riders may help for a smoother ride over bumps.
Warning: Changing the tyre pressures can change the way the bike steers, performs
and handles.
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10. Connect motor:
Ensure on/off switch is in the “out/off” position. Then with dry hands and
away from flammable items, carefully align the arrows marked on the
connectors. Firmly push together ensuring the plug is all the way to the line
marked on the plug.
Your LPR12 Jnr MX™is now assembled!
Warning!
Prior to riding:
Adjust the bike to suit the riders height and size- see page 17
Charge the battery- see charging instructions on page 19
Complete pre ride checklist- see page 22
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Preparing For Use and Riding Instructions:
WARNING AND DANGER OF ACCIDENTS: All children have different
abilities and levels of concentration and intellectual readiness. Only let your
child ride the bike when you feel the child is mentally and physically ready.
This is an off road vehicle, not to be ridden on public roads, footpaths or public
areas.
This bike is not certified to comply with the Australian design
rules and may not be registered for normal on-road use.
Familiarize your child with the controls of the bike.
Ensure your child knows how to turn off the bike in the event of an emergency using
the off switch (kill switch).
Ensure your child is capable of applying the brakes before they ride the bike.
Ensure your child follows your instructions and then set rules for your child. Make it
clear that they understand that they are not to ride the bike unsupervised or without a
helmet or protective gear.
Adjust the bike to suit your child’s height and size on page 17.
Set the speed limiter to minimum setting for first ride. See page 18.
Charge the battery- see charging instructions on page 19.
Complete pre ride checklist- see page 22.
Ensure the environment is safe for riding. Walk and check the entire riding area prior
to letting your child ride in that area. Clear area of hazards such as sticks or rocks that
may cause the rider to fall or impale a falling rider. Ensure creeks, dams, swimming
pools, steep hills, public roads etc. cannot be accessed whilst riding.
Give your child lots of space for the first few rides. A large paddock is recommended
to allow room for your child to learn the handling of the bike and controls. This will
help train your child how to steer, brake and maneuver the bike in a safe environment.
Teach your child how techniques of riding like how shifting weight and locking the
brakes can affect the handling.
Don’t let your child ride in an area that is unsafe or exceeds their ability.
Your child should always ride with both hands firmly on the handlebars.
Encourage your child to use good off road techniques.
Running In the Bike:
Being electric the LPR12 Jnr MX™ is super quiet, which means the slightest rattle can be
heard. The brakes may make some squeaks or slight rubbing noises, this is normal and they will
soon bed in and the noises should disappear. There is no bedding in of electrical motors
required. After about 5 minutes of use, check for any loose components, check brake function
and adjust if necessary. The headset bearings may be also slightly tight at first, which will also
bed in after the first ride. Familiarize yourself with the pre ride checklist and perform this before
each ride and each time after your child falls off the bike.
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Adjust the Bike to Suit Rider’s Height and Size:
The LPR 12 Jnr MX™is adjustable just like a standard bicycle. As you child grows, you can
quickly tailor the bike to their size! You can adjust the seat height and angle, raise the stem or
roll the handle bars forward or back to adjust.
This picture below shows the ideal rider posture- Slightly bent legs with feet flat on ground and
bars at stomach level height with elbows slightly bent.
Maximum rider weight 30kg.
Maximum rider height 120cm.
How to Adjust Seat height:
To adjust height, open quick release lever, raise or lower seat until desired position is
reached. Ensuring the minimum insertion marks are always below the seat post clamp.
Close the quick release lever. Ensure the seat is tight. The quick release lever should
close with a nice firm push. By tightening or loosening the locking nut on opposite side you can
obtain the desired tension on the seat post clamp. Maximum rider height 120cm.
Adjust Seat Angle:
Loosen the bolts directly under the seat and adjust the tilt of the seat to suit your child.
Tighten the bolt once desired angle is found. (Torque 20NM).
Tip: Level to the ground is recommended.
Adjust Handlebar Height:
Loosen stem expander bolt approximately 5 turns. Twist handle bars left and right and
raise or lower stem until desired position is reached. Ensuring the minimum insertion
mark is below the headset top nut. (See step 2 and 3 on page 10 and 11). Align front
wheel and tighten stem expander bolt. (Torque 20NM)
Adjust Handlebar Clamp Angle:
Loosen handlebar clamp bolt on the underside of the stem, adjust angle to desired
angle. Re-tighten handlebar clamp bolt. Adjust the throttle and brake lever mounting
angles to compensate for the change.
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Setting the Speed Limiter:
How to Adjust the Maximum Speed:
Remove the speed adjuster cover by removing the speed adjuster cover mounting bolt.
The speed limiter is variably adjustable and can be set at any speed from 11km/h thru
to 26km/h.
Twist the knob anticlockwise for the minimum speed setting, and clockwise for faster speed.
After adjusting. The range of adjustment is only ¾ of a turn.
Caution: A small movement of the knob has a large effect on speed. After you have
set the speed, fit the speed adjuster cover. It is always recommended to set the speed
on the minimum setting for each new rider, and work your way up to faster speeds
only when the rider is ready. Do this in small steps.
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Charging Instructions:
For the first charge:
From new, the bike is shipped with the battery at storage charge (half charge). The battery
indicator should illuminate to 1 or 2 out of the 4 bars when the bike is turned on for the first
time. It is recommended to charge the bike to 100% before the first ride.
When to charge:
Just like a modern lithium powered smart phone or laptop, you do not need to completely
discharge the battery before re-charging. Charge at any time during the full-empty cycle. You
can also stop charging and go riding before the battery is completely charged. The battery takes
2.5hrs to charge from empty. The battery monitor system (BMS) built into the battery, will
automatically monitor the battery for voltage and cell balance. It will not allow overcharging or
over discharging below the min/max voltage levels. You can even top it up between rides; an
approximate guide, 15 mins of charging gives about 10 mins of riding time. When the battery is
completely flat the display will not illuminate.
Run times:
Run time is up to 2.5hrs, however this depends on many factors such as riders weight, steep
hills, rider skill level and soft/hard terrain or even cold weather will put more or less load on the
bike. Any of these factors can reduce run times dramatically. The recommended ambient
temperate for charging is 0°C to 45°C.
Charging Safety Precautions:
Only use the supplied charger.
Never leave the battery charging unattended.
Charge the bike in a well-ventilated area not near combustible material
Adults to only use the charger. Keep charger away from children and unplug it from
the mains power when not in use. Think about the possibility of toddler putting the
live charging jack in their mouth or the strangulation hazard with the cord.
Do not let the bike or charger come into contact with water whilst charging.
Do not leave bike or charger in the rain. The bike and charger is not waterproof, can
cause damage or electrical shock.
Do not charge near flammable products or liquids.
If at any time the battery charger becomes damaged or wires are exposed. Discontinue
use of the battery charger.
If at any time the battery becomes damaged, hot, begin to swell or distributes a smell,
discontinue use of the battery. If charging, quickly and safely turn off mains power
and pull out plug. Then remove the bike from the charger and then place bike in a
well-ventilated area at least 2 meters from combustible material. Monitor until sure
the area is safe.
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