Little Pro Rider LPR 12 JNR MX Owner'S Manual Download Page 41

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OWNERS MANUAL | Model: LPR12 Jnr MX V1.0

40 |

P a g e

Serial Number:

This product serial number is located on the steering tube frame on the front of the bike. For

future reference, record your product serial number here:

Product Serial Number:

LPR12 Jnr MX™ Specifications

Weight:

11.5kg

Seat height:

390mm – 490mm, quick adjust

Handlebar height:

570mm – 620mm

Foot peg height:

135mm

Overall Dimensions:

L 930mm x H 600mm x W 450mm

Wheel base:

625mm

Ground clearance:

90mm

Foot pegs:

Bonded rubber, steel shank 45° pivot- spring return

Frame/Fork:

Strong steel construction. Durable powder coated gloss finish

Wheels:

Alloy 12”, sealed Ball bearings. Rear wheel incorporates the drive motor

Tyres:

Nylon rubber pneumatic 12” x 2.4”

Brakes:

Rear band brake (drum)

Headset:

Threaded style 1” ball bearing headset

Package Dimensions:

79cm x 44cm x 18cm (bike 95% built)

Battery:

5200mAh 22.2v

Motor:

Brushless D.C.

Power:

300w

Run time:

2 hrs**

Charge time:

2.5 hrs

Top speed:

Parents can set top speed variably from 11km/h -26km/h

Run times vary depending on rider weight, rider skill, hills, soft or hard terrain conditions,

ambient temperatures (lithium batteries lose performance greatly in cold conditions).
2hrs = Average rider weight of 16kg, average skill level on flat track of hard clay surface 20°
ambient temp

Summary of Contents for LPR 12 JNR MX

Page 1: ...all warnings as outlined in the manual LPR 12 JNR MX 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 LPRBikesisanAustralianowned familycompany establishedto createqualitykid sbikesthatare uniqueandinnovative This owner s manual contains important assembly and safety information It is important that it is ...

Page 2: ...OWNERS MANUAL Model LPR12 Jnr MX V1 0 1 P a g e ...

Page 3: ...rranty 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 Trou...

Page 4: ...f 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 difference...

Page 5: ...ete 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 ride the bike through puddles or in the rain as the bike i...

Page 6: ...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 on a concrete surface in a well ventilated area not near combustible material Never expose the bike or battery to extreme temperatures Temperature range must be between 5 49 C Do not leave bike unattended inside an automobile In summer car truck interiors ...

Page 7: ...sher 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 3 months warranty on 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...

Page 8: ...OWNERS MANUAL Model LPR12 Jnr MX V1 0 7 P a g e Getting to know your LPR12 Jnr MX Figure 1 Right Side View Model LPR12 Jnr MX Figure 2 Top View Model LPR12 Jnr MX ...

Page 9: ...n 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...

Page 10: ...his 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 ke...

Page 11: ...aging 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 ...

Page 12: ...he 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 ...

Page 13: ...suring 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 ...

Page 14: ...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 ...

Page 15: ...nd 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 10 Remove Frame Cover Remove 2 x frame cover mounting bolts using a 3mm hex wrench then carefully remove cover CAUTION live power 25v lithium battery ...

Page 16: ...in Carefully tuck the wires into frame A small spark may occur just as the contacts touch this is normal Now re fit frame cover Set the speed control to minimum See setting the speed controller on page 18 then re fit the speed adjuster cover 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 inst...

Page 17: ...ding 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 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 con...

Page 18: ...at 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 ...

Page 19: ...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 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...

Page 20: ...uce run times dramatically The recommended ambient temperate for charging is 10 C to 30 C Charging Safety Precautions Only use the supplied charger Never leave the battery charging unattended Charge the bike on a concrete surface in a well ventilated area not near combustible material Adults to only use the charger Keep charger away from children and unplug it when not in use Think about the possi...

Page 21: ...he charger into the bike see figure 3 Light will turn red Charging will take 2 5 hrs from empty Step 3 Charger light will turn green when fully charged Step 4 Disconnect Charging cord from bike and re fit the dust cap Unplug charger from 240v mains and store in a safe dry place Step 5 Turn bike on and check battery indicator is showing full charge Battery is now fully charged If you are having pro...

Page 22: ...e bike WARNING The handlebar hand grips or tube end plugs should be replaced if damaged as bare tube ends have been known to cause injury It is particularly important that bikes used by children be checked regularly to ensure that adequate protection for the ends of the handlebars are in place Replacement forks must have the same rake and same tube inner diameter as those originally fitted to the ...

Page 23: ...d to front wheel and steering stem moves freely with no play in headset bearings No structural cracks or damage Wires cables Condition ok secure and in standard routing position Brakes Pull brake lever and push bike ensure wheel locks and brake work well and release smoothly once the lever is released adjust if necessary setup procedure on page 26 Wheels Check for cracks or damage Speed test Ensur...

Page 24: ...ommended to disconnect battery whilst working on or cleaning the bike Cleaning is safest completed with waterless products where you spray on and wipe off without the use of any water Search for waterless car wash products to find a product Ensure bike is turned off and the charging jack rubber dust cap is fitted prior to cleaning If the tyres are muddy carefully use a small amount of soapy water ...

Page 25: ...fter storage prepare for use by completing the pre ride checklist and charging battery Transporting Your Bike At only 11 5kg the LPR12 Jnr MX can easily be lifted into the boot of a car Restrain the bike during transport using tie downs or rope Disconnect the battery under the frame cover prior to transporting The bike does not need to be transported upright and can be placed in any position Keep ...

Page 26: ...n bike Lift up the rear wheel off the ground with the handle on the back of the seat twist throttle and test if the wheel spins Let go throttle and wheel should coast to a stop Turn off bike after test Replace or clean throttle assembly if necessary 2 ON OFF switch test The On Off switch must be in good working order at all times The On Off switch has a very simple operation Press once to turn on ...

Page 27: ...r The brake lever is short throw and close to the bar for kid s small hands The drum is bolted onto the rear wheel and the band inside the band brake assembly clamps the drum when the lever is pulled to activate the brake The brakes should be tested prior to each ride for correct function How to Test the brakes Test brakes by pulling the brake lever whilst pushing the bike forward The rear wheel s...

Page 28: ...OWNERS MANUAL Model LPR12 Jnr MX V1 0 27 P a g e Maintenance Procedures continued Brakes continued Figure 4 Rear brake Components Figure 5 Inside view of band brake ...

Page 29: ...hickness and drum diameter is within the service limit Test return spring is ok and springs back freely Inspect the drum Check drum is not warped or cracked Runout should not exceed 0 2mm and minimum drum diameter not less than 69 2mm Check drum retaining bolts are tight with Loctite torque 6Nm Use 120 grit sand paper to clean braking surface Clean with methylated spirits and a cotton cloth to rem...

Page 30: ...on right hand side of rear frame section Step 2 Remove brake cable anchor bolt and brake torque arm bolt nut on inside see figure 4 on page 27 Step 3 Loosen both wheel nuts on each side of the axel Due to the twisting force of the wheel under acceleration the axel will lock into the rear dropouts and will be hard to slide out Use a 10mm spanner on the flats of the axel to twist the axel so the fla...

Page 31: ...on the frame Install bolt finger tight as per the picture below Step 3 From the rear of the bike look along the bike and align the wheel so it is straight with the frame Tighten the axel bolts using an 18mm spanner Torque 50Nm Step 4 Tighten the brake torque arm bolt and nut Fit cable anchor bolt and tighten Step 5 Adjust brakes as per the brakes adjustment section page 26 Step 6 Connect the motor...

Page 32: ...e you test it prior to determine to replace it see troubleshooting section for how to test To remove the battery safely the battery needs to be fully drained of any power before removal from the frame Note Lithium batteries can catch fire if recharged from low voltages below 18V once you further discharge the battery it must be replaced for safety reasons The Battery Monitor System BMS and Motor S...

Page 33: ...nd out of frame section being careful to not disconnect any connecting plugs This will reveal the lower wires and plugs for inspection Step 3 Inspect condition of all wires connectors and plugs Check for Moisture inside the frame or corrosion Worn or chaffed wires Cracks in plastic connectors Missing insulation on any wires or plugs Signs of overheating or burning Melted connectors or wires Clean ...

Page 34: ...a gritty feel the bearings may need repacking with grease or replacing Making an adjustment Step 1 Loosen the top lock nut then tighten or loosen the adjustable top bearing cone until there is no movement in the bearings Steer the bars left to right and check for binding Step 2 Loosen top bearing cone of a turn and then tighten the locknut When tightening the locknut ensure the top bearing cone do...

Page 35: ... reconnect 3 Faulty Battery Management System 4 Motor cable damaged Look for any visible damage replace 5 Faulty throttle or cable damaged Replace throttle 6 Faulty speed adjuster 7 Faulty motor Bike does not charge 1 Check DC jack and both the battery and BMS connections under the frame cover See wiring diagram look for this symbol and check that connection is good 2 Faulty charger 3 Faulty Batte...

Page 36: ... 5 v red throttle wire supplies 5v to the throttle As the throttle twists a variable voltage 0v 5v will be transmitted to the motor controller unit via the White throttle wire 0 throttle 0v 100 throttle 5v Use multi meter set on DC voltage across the throttle ground cable black wire with and throttle signal white wire twist the throttle to check voltage gradually increases as the throttle increase...

Page 37: ...ld be 25 2v after fully charged 18v when discharged Check voltage for each cell There are 6 cells to the battery check the voltage for each cell individually to ensure the voltage is balanced Voltage can be checked by using a multimeter across each terminal of the balance plug on the battery Each cell should be balanced to the same voltage 0 1v Each individual cell voltage should be 4 2v after ful...

Page 38: ...g is connected into back of charger Ensure mains outlet working test the 240v outlet with another appliance Using a multi meter set to DC volts check output voltage is 25 2v Battery management system To test if the BMS is causing your problem eliminate and bypass the BMS by connecting battery terminals straight to Motor Controller Supply power wires An adapter plug will be needed for this test XT6...

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Page 41: ...g steel construction Durable powder coated gloss finish Wheels Alloy 12 sealed Ball bearings Rear wheel incorporates the drive motor Tyres Nylon rubber pneumatic 12 x 2 4 Brakes Rear band brake drum Headset Threaded style 1 ball bearing headset Package Dimensions 79cm x 44cm x 18cm bike 95 built Battery 5200mAh 22 2v Motor Brushless D C Power 300w Run time 2 hrs Charge time 2 5 hrs Top speed Paren...

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