YOUNG ELECTRIC Adults Electric Bike Owner’s Manual

YOUNG ELECTRIC Adults Electric Bike

THANK YOU FOR CHOOSING A YOUNG ELECTRIC BICYCLE !
YOUNG ELECTRIC bikes are designed to make your riding experience a pleasure. Carefully read this Owner’s Manual before assembly and first ride. It will give you all the information nec ssary for assembly, adjusting, and maintenance of your bike.

YOUNG ELECTRIC is not liable for accidents or injuries due to improper use of the product, failure to adhere to the instructions given in this guide, or modifications to the product. While every effort has been made to ensure that the information contained in the guideis accurate and complete, YOUNG ELECTRIC is not liable for any errors or omissions

YOUNG ELECTRIC works hard to guarantee you a bicycle that is properly assembled and correctly adjusted when it leaves our factory. Please contact our Help Center if you still have questions about your new bike after reading this manual. Our customer service staff will work to answer questions regarding assembly, performance, operation, service parts or general service.
Email: ebike@forcome.com
About this Manual:

Keep this Owner’s Manual in a safe place for future reference. All content in this manual is subject to change as we continually work to refine our products. This manual contains warnings, cautions, and notes for your safety. Carefully read all of this information and share with others that may ride this bike before attempting to operate the bike for the first time. Give special attention to any information that has a warning or caution symbol before or next to it. Also pay attention to any information preceded by NOTICE as this will be important information that may not be related to safety.
Always properly maintain and care for your bicycle so original quality and safety are retained.
Maintenance, adjusting and repairs To reduce the risk of accidents and injury, regularly inspect your bicycle and have it repaired at our authorized distributors or after sales service shop. Assembly and adjustment of this bike may require special tools and skills. It is recommended that assembly and adjustment of this bike be completed by a certified, reputable bike mechanic if possible.

Overview

1. Shift Lever| 2. Right Brake Lever| 3. Left Brake Lever| 4. Handle bar| 5. Suspension Fork| 6. HMI
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7. Front Light| 8. Front Wheel| 9. Frame| 10. Saddle| 11. Battery| 12. Reflector
13. Electric Motor| 14. Pedal| 15. Crankarm| 16. Rear Derailleur| 17. Rear Wheel| 18. Kickstand

SAFETY PRECAUTIONS

The following safety signal words indicate the following information is a safety message. The symbols are to alert you to potential hazards. Failure to pay attention to the safety message may result in property damage, injury or death. This manual contains many WARNING and CAUTION messages related to safety and the potential hazard. It also contains NOTICE messages that information the user should pay special attention to.

Indicates a hazard or unsafe practice that can result in severe injury or death if the user fails to read, understand and follow the safety information in this manual.

Indicates a hazard or unsafe condition that could result in minor injury if the user fails to read, understand and follow the safety information.

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Indicates information that the user should pay special attention to but is not related to physical injury.

Always carry out a complete check before riding. Thoroughly read the safety section. Electric Bicycles can be dangerous to use. The user or consumer assumes all risk of personal injuries, damage, or failure of the bicycle or system and all other losses or damages to themselves and others and to any property arising as a result of using the
electric bicycle.
Never disassemble, modify or replace electrical parts.
Always wear an approved helmets when you are riding to protect your head in a fall. It is your responsibility to familiarize yourself with the laws of where you ride your YOUNG ELECTRIC bicycle and comply with all applicable laws.

Always wear an approved helmets when you are riding to protect your head in a fall. It is your responsibility to familiarize yourself with the laws of where you ride your YOUNG ELECTRIC bicycle and comply with all applicable laws.
If you are riding at night or in bad weather
Wear reflective and bright color clothing and/or a reflective vest. Check your bicycle headlight and white reflector are in place and function properly. Check your rear red reflectors and wheels reflectors are also in place.
Extra precautions must be taken if you will be riding your bike in the rain. Braking distances increase during rain, visibility and tire traction are reduced. Allow extra stopping distance and take extra caution in the rain and on wet surfaces. Avoid riding the bike on ice and in snow.
Access to pathways, responsible riding and code of good riding.

All frames and components should be checked regularly Inspect for signs of wear and/or essential breakage (cracks, corrosion, breaks). These are important safety verifications to avoid accidents, body injuries and that your bike continues to last and give you pleasure.
Do not consider access to pathways guaranteed. Your behavior on your nextride will influence accessibility to pathways in the years to come. Limit skidding,avoid muddy areas and remain courteousto walkers and horse riders.

ASSEMBLY INSTRUCTIONS

• YOUNG ELECTRIC Bicycle Assembly Checklist
  1| Main Bike Assembly| 4| Right Pedal| 7| Charger|

10

| Master Carton
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2| Kickstand| 5| Tool Kit| 8| Charger Cable| 11| Accessory Box
3|

Left Pedal

| 6| Quick Release Lever| 9| Key x 2|

12

| Owner’s Manual

• Tool Kit
  
  

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YOUNG ELECTRIC Bicycle Assembly Guide**

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The following assembly information is only a general guide to assist during the assembly of your ebike. It is not a complete or comprehensive manual of all aspects of the bike assembly, maintenance, andrepair. Consult a certified bike mechanic to assist with the assembly, adjustment, repair, and maintenance of your ebike.
Step 1: Open shipping carton and carefully remove your bike from the bottom tray. Gently place it on a soft surface to prevent scratches during assembly. Remove all zip ties and inside protective covers or packing materials. (scissors not included)

Step 2: Kickstand come with 2 bolts. Remove 2 bolts from kickstand with M4 Allen wrench. Position the kickstand under the bike. Thread the bolt with your fingers into the threaded hole in the kickstand and tighten it with M4 Allen wrench.

Step 3: Remove the front axle bolt and shipping bracket from front fork. Remove plastic caps from front wheel hub. Insert the front wheel into the fork dropouts. Make sure the brake disc is centered in the caliper to avoid damage. Insert the quick release axle bolt into the front wheel hub and tighten. Do not over tighten the quick release and do not use any tools to increase leverage, close it firmly by hand. There should be no play in the front wheel

Never touch the brake rotor, especially when the wheel and/or bike is in motion.
Fingers may be severely injured by sharp edges or holes in the rotor. Grease or oil from fingers may damage or reduce the performance of the brakes


Step 4: Remove the handlebar clamp from the stem by removing all screws with M5 Allen wrench. Insert the handlebar into the stem and reinstall the clamp. Make sure the handlebars are aligned with the front wheel before tightening and the stem is not set above the maximum height indicator. Tighten all screws evenly in crosswise pattern. Make sure handlebars are in preferred position before final tightening of screws. Tighten the 2 bolts on the stem. Make sure all screws are tightened evenly to ensure maximum stability of handlebars.

Make sure all fasteners used to secure the handlebars and stem are torqued according to specification. Loose handlebars could cause the rider to lose control and result in serious injury. Do not extend any component beyond any minimum insertion mark. Damage to bike, property, serious injury or death could occur.


Step 5: Install Pedals.

the pedals are marked “L” for Left and “R” for Right. The pedal marked R is to be installed on right crank arm according to rider on saddle. The pedal marked L is to be installed on the left crank arm of your bicycle. Use the wrench provided in the tool kit to attach and tighten the pedals.

Step 6: Adjusting the height of your saddle. Turn the seat post quick fastener lever from closed to open. Adjust the height of the saddle as needed. After that, turn in the quick fastener lever from open to close. For your safety, the saddle should not be raised above the marker on the seat post

Rider leg should be only slightly bent when pedal is closest to ground, the ball of the foot is on the pedal, and rider is sitting on the saddle.

Always check to ensure all latches, levers, and quick releases are properly secured and undamaged. Make sure they are correctly secured before every ride. Bike parts may come loose and can result in loss of control. Damage to the bike, property, serious injury, and/or death.

Step 7: The battery must be installed by sliding the battery forward in the battery holder. The key locks the battery to the bike when the key is turned clockwise to the locked position. The battery must be locked when riding or it may fall out. The key does not have to be in to operate the bike.

Step 8: Remove any remaining packaging or plastic caps.

Battery Charging & Storage

Battery Charging

Battery Storage

• Deep discharge of the battery may cause the internal short circuit. Heating the battery to very high temperature may cause fire.
• Avoid deep discharge during the use and storage of battery.
• When not in use, the battery shall be fully charged once every 3 months at least.
• Do not carry a deep-discharged battery on the E-bike.
• If the E-bike or the battery is not used for a long time, comply with the following instructions:
• Do not store the battery in the environment with temperatures below -20℃ (-4℉) or above 45℃ (113 ℉).
• Do not expose the battery in an environment with fluctuating temperature. The ideal storage temperature range is between 10℃ (50℉) and 25℃ (77℉).
• Protect the battery against moisture to avoid the corrosion of electrical contacts. It shall be stored in a dry environment.
• Do not store the battery near the flammable items.
• The battery will switch to offline in the following cases:
• E-bike is not in use for 2 months.
• The battery is completely depleted and/or is not charged for 3 months. Completely charge before returning battery and bike to normal use

Battery Information
Follow these instructions to guarantee a longer battery life.

• Ideally, the battery shall be charged at ambient temperature close to 20℃ (68℉). Battery should be close to ambient temperature before starting charge cycle.
• Avoid frequent full discharge. Battery life is improved with only partial discharge. Lithium-Ion battery cells used in your battery do have memory that can reduce battery capacity. Regardless, if battery is in-use or not, the cell oxidation will be caused by the usage and aging, and the battery capacity will be reduced as battery becomes old.
• Deep discharge will cause irreversible damage and capacity loss for the battery. If the battery is not used for a long time, it must be fully charged at least once every 3 months.
• Do not put the battery in water.
• The battery and charger shall not be repaired. Do not try to disassemble or modify the battery or charger.
• Do not use a battery with a damaged case.
• Keep the battery away from children.
• Stop using the battery immediately if become hot to touch, dissipates a strong odor, or has a distorted housing.

Battery Charging Information

• A damaged, wet, or dirty power cable or socket may cause electric shock that can be fatal injury. Avoid using dirty, wet, or damaged power cables.
• Stop charging battery immediately if it becomes too hot to touch, emits a strong odor, or has any other signs of overheating.
• When charging, ensure no flammable material is near the battery since it may generate heat.
• Put the charger and battery on a non-flammable surface for charging. To charge a battery installed on the Electric bicycle, put the Electric bicycle in an environment with no flammable materials nearby.
• Do not charge the battery on a carpeted floor.
• Do not cover the battery and charger during charging.
• Use the battery charger provided with the product only.
• Use a dry and undamaged power cable and charger only.
• Replace a damaged power cable or charger immediately.
  Before connecting a power cable, remove foreign matters at the charger port, such as dust, ice, and snow.
  Applying the other charger which is not provided by the product may cause battery overheating and explosion.
  When not in use, the battery shall be fully charged once every 3 months at least.

Do not expose the battery in the environment with storage temperatures below -20℃ (-4℉) or above 45℃ (113℉).
Note: The temperature above 60℃ (140℉) may cause the internal structure overheating, especially in the environment under direct sunlight. Do not use the charger in a humid environment or in the environment with temperatures below -10℃ (14℉) or above 40℃ (104℉). Stop charging battery immediately if it becomes too hot to touch, emits a strong odor, or has any other signs of overheating.
Charger Information
The provided charger is suitable for the voltage range of 100-240V. Switching the voltage range of the changer is not required as it will automatically detected supply voltage. There is not any switch on the charger. Unplug the charger when not in use.

Charge the battery only with the charger originally supplied with the bike or a replacement Younge Electric charger. Never use an aftermarket charger which can result in battery damage, property damage, serious injury, and/or death.
Charger Connection Put the battery on a solid non-flammable surface when in use. The battery and charger should be laid flat on surface so ports and plugs are horizontal. Otherwise, the charge port and plug connecting to the socket may be damaged in other ways. To check the present Battery Capacity, turn on the system, and the information will be shown on the instrument.
Unplug battery and charger when not in use.
Connect the charger to the battery, and the indicator on the charger shows red light to indicate that the battery is charging. A completely discharged battery will required about 5.5 hours to be fully charged. After charging is complete,  the indicator on the charger shows green light There is not any switch on the charger. Disconnect the battery when it is completely charged.
Do not push the bicycle pedals when the battery is charging on the bicycle. The charge socket on the battery may be damaged.
The battery can be charged when on or off the bicycle but must not be moved during charging cycle.

Pre-Ride Check

Check the following every time before you mount your bike:

Wheels and Tires| Ensure the tires are inflated to the recommended limits specified on tire side wall.

Inspect tires to ensure tread is good, have no bulges or cuts, and have no embedded objects that may puncture it.

Ensure rims have no damage, run true, do not wobble, have dents or kinks. Ensure all spokes are tight and are not broken.

Make sure axle nuts or quick release levers are tight.    Ensure the locking lever of all quick release assemblies are secure.

Ensure that reflectors are securely in position on both wheels.

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Brakes| Ensure front and rear brakes function properly.

Test that the brake levers move freely, are firm, and do not touch the handlebar grips when pulled with maximum hand force.

Ensure the motor cutoff and brake light functions properly.

Ensure the brake pads are positioned correctly, move freely, and do not have excess wear.

Inspect the brake rotors to make sure they are not damaged, have objects tangled in them, or have excess wear.

Ensure brake cables are adjusted correctly, are lubricated, and have no obvious damage.

Ensure brake caliper fasteners are secure, they are not leaking fluid, and do not have damage.

Steering| Ensure the handlebars and stem are correctly adjusted, fasteners are tight, and turn freely. Ensure the handlebars and stem are set correctly in relation to front wheel.

Ensure both handlebar grips are secure and do not have excess wear.

Chain| Ensure the chain is clean, well lubricated, and runs smoothly. Make sure chain does not make any unusual noises or squeaks.

Make sure there is no foreign material lodged in the chain links or excessive corrosion.

Bearings| Ensure the bearings in the headset, lower bracket, pedals, and both wheels turn freely.

Inspect for excess movement, rough feeling, grinding, rattling, and noise.

Cranks and Pedals| Make sure both pedals are securely tightened to the crank arms. Ensure the pedals turn freely, not bent or damaged in any way.

Make sure the crank arms are securely fastened to bottom bracket shaft and are not bent.

Rear Derailleur, Shifter, and cable| Check that the derailleur is adjusted and function properly.

Ensure the shifter is functioning properly when shifting up and down through gears. Ensure the chain is not making noise in all gears.

Ensure the derailleur is moving freely.    Does not have any object tangled in it, and shift cable tightly secured to it.

Ensure the shift cable is not damaged in any way and is properly adjusted.

Frame, Fork, and Seat| Make sure the frame and front fork are not bent or damaged in any way.

Inspect frame and fork for any cracks in the paint at welded joints. This can indicate damage to the frame or a broken weld.

Make sure the seat is properly adjusted and the quick release is securely tightened.

Ensure both wheels are evenly spaced in the front fork and rear frame.

Motor and Rear Wheel Assembly| Ensure the hub motor spins smoothly in both directions.

Ensure the motor power cable is not damaged and secured well to the frame.

Ensure the hub motor bolts are tight and there is no sign of damage to the rear drop outs. Ensure the spokes are tight and do not appear to be damaged in any way.

Battery| Make sure the battery is fully charged before using the bike.

Inspect the battery to ensure there is no damage to the battery, the electrical connectors are in good condition, and the mounting features are in good condition.

Insert battery into lower mount and rotate it into the upper mount. Make sure battery is held firmly in position by lock.

Pull lightly on the battery to make sure it will not come out after locking to frame.

Turn on the HMI display to confirm battery is engaged and fully charged.

Electrical Cables and Lights| Inspect all visible electrical connectors to confirm they are connected completely.

Make sure all electrical cable grommets are in the proper position to prevent damage to electrical and mechanical cables.

Ensure insulation on cables is not damaged and there are no exposed wires.

Carefully inspect cables that pass under bottom bracket to make sure cables are not damaged under the bike.
Turn on the bike to ensure the headlight, taillight, and brake lights are functioning properly.

Accessories, Other, and PPE| Ensure all reflectors on bike are properly secured and visible.
Ensure rear rack and any other items are securely fastened to the frame. Ensure the fenders and mounting hardware are secure.
Make sure the kick stand is functioning properly and fasteners are tight.
Inspect the helmet and any other PPE to ensure they are not damaged and function properly. Ensure the rider is wearing a helmet, other required PPE, and is familiar with riding laws.

HMI Control

When riding the Electric bicycle, using the Power Assist or Controls may distract you. It may reduce your control on the E-bike and cause unexpected injury. The components should only be accessed under proper traffic conditions. Access the information after parking the E-bike in a safe place.
Changing Power Assist level on a slippery surface could cause you to lose control. Avoid changing Power Assist levels when on slippery surfaces. Reduce speed and use extra caution if level must be changed when on slippery surface.

ON: Ensure the battery has been installed on the E-bike and turn the battery lock to”  ” position.
Press the power switch“ ”for more than 3 seconds. The instrument screen will be turned on.
The HMI display will become active and display information shown in the image below. Assistance level, Speed, Battery Capacity, Total travel distance, and other information.
OFF: Press the power switch “ ” for more than 3 seconds. The instrument screen will be turned off

• Rear Wheel Boost Mode【 】:
  When you walk and push your bike, press【 】3 seconds to enter the Rear Wheel Boost mode and the【 】 indicator icon lights up. The bike will begin to move at 6 km/h (3.7 mph) . Caution: Rear wheel boost mode should only be used while dismounted from the bike and with both hands on the handlebars. Always keep at least one hand on a brake lever to allow for quick cutoff of the motor assistance if necessary to maintain control of the bike.

• Front Light:
  Press 【 】3 seconds the front light is “on” and the Light indicator will come on. Press【 】again and hold for 3 seconds to turn the light is “off”
  

• Error Indicator【 】:
  The error indicator【  】will light up when the ebike control system detects a failure. Take your bike to an authorized distributor or qualified service center for checking.

• Battery Capacity Indicator:
  Battery Bar indicates the battery usage when the system is ON. The battery icon on the screen shows the remained Battery Capacity. There are 5 levels of the bar, and each level indicates about 20% Battery Capacity. All 5 level bars lighting up indicates full battery. The bar is always ON when bike power is on. The Battery Capacity bar is will be flashing when the remained Battery Capacity is lower than 5%. Charge the battery before indicator starts flashing to get maximum life from your battery.
  

• Power Assist Mode:
  Press the【 ▲】or【 ▼】 buttons to change the power assistance level. There are 5 levels that include ECO/TOUR/SPORT/TURBO/BOOST levels. The power and acceleration will increase as the levels are increased.
  Higher levels will reduce rider effort but will also reduce the assisted riding range. Change the levels based on riding conditions and rider preference.

• Power Assist Mode:
  Press the【 ▲】or【 ▼】 buttons to change the power assistance level. There are 5 levels that include ECO/TOUR/SPORT/TURBO/BOOST levels. The power and acceleration will increase as the levels are increased. Higher levels will reduce rider effort but will also reduce the assisted riding range. Change the levels based on riding conditions and rider preference.

• Please press the 【 M 】button to switch the display information. The 2 display information are listed as follows:

• Trip ø Average Speed (KM/H): Average speed of the trip (km/hour)
  

• ODO/MAX：Total travel distance of the E-bike(km)
  

• Interface Setting:
  Hold the 【 M 】 button 3 seconds within 10 seconds of turning power on. Press 【 M button to change the setting for unit(km/mile), Backlight Intensity, Sleep time and Time.
  

• Backlight Intensity Setting:
  Step 1: Hold the【 M 】button 3 seconds within 10 seconds of turning power on.
  Step 2 : Press 【 】 switch to the backlight intensity setting interface.

• Step 3 : Press【 M 】to the digital flashing, then press 【 】to choose intensity
  Step 4: Press【M 】button 3 seconds for backlight intensity setting confirmation.

• Unit(km/mile) Setting:
  
  Step 1: Hold the【 M 】button 3 seconds within 10 seconds of turning power on.
  Step 2: Press 【 】 switch to the unit setting interface.
  Step 3: Press【 M 】to the digital flashing, then press 【  】to switch kilometer and mile
  Step 4: Press 【 M 】button 3 seconds for setting confirmation.
  

• Sleep Time Setting:
  
  Step 1: Hold the【 M 】button 3 seconds within 10 seconds of turning power on.
  Step 2 : Press 【    】 switch to the sleep time setting interface.
  Step 3 : Press【 M 】to the digital flashing, then press 【 】to set sleep time.
  Step 4: Press M 】button 3 seconds for sleep time setting confirmation

• Time Setting:
  
  Step 1: Hold the【 M 】button 3 seconds within 10 seconds of turning power on
  Step 2: Press 【  】 switch to the sleep time setting interface.

• Step 3: Press【 M 】to the digital flashing, then press 【  】to set time.

• Step 4: Press【M 】button 3 seconds for sleep time setting confirmation.

Carrying Loads
The maximum weight limit for the YOUNG ELECTRIC bike is 242 lb. (110kg). That weight limit includes the weight of the rider and all items carried on the bike. The rear rack weight limit is 59 lb. (27 kg.). Always make sure all items carried on the bike are secured very well to prevent them from falling off during travel. Cargo should be carried as low as possible to lower the center of gravity. Lower center of gravity will improve handling and make it easier to balance bike. Make sure cargo does not interfere with any moving bike components or drags on ground. Carrying a cargo load involves additional risks and required special care or attention. Braking, acceleration, and

• Never exceed the rated weight limit of the bike or rear rack. Exceeding rated limit can damage the bike or rack. Damage to bike may cause rider to lose control of bike and result in serious injury.
• Never carry passengers on this bike. Passenger may fall from the bike or become injured by moving parts.
• Never carry oversized objects on the bike that may interfere with rider. Oversized objects may cause rider to lose control and result in serious injury.

Maintenance

Basic Bike Care To ensure safe riding conditions you must properly maintain your bike. Follow these basic guidelines and see a certified bike mechanic at regular intervals to ensure your bike is safe for use and fun to ride.
Properly maintain batteries by keeping them fully charged when between uses of two weeks or more apart. See the Long-Term Battery Storage section for information on storing the battery for longer than two weeks between rides.

• Never immerse or submerge the bike or any components in water or liquid as the electrical system may be damaged.
• Periodically check wiring and connectors to ensure there is no damage and the connectors are secure.
• To clean, wipe the frame with a damp cloth. If needed, apply a mild non-corrosive detergent mixture to the damp cloth and wipe the frame. Dry by wiping with a clean, dry cloth.
• Store under shelter; avoid leaving the bike in the rain or exposed to corrosive materials. If exposed to rain, dry your bike afterward and apply anti-rust treatment to chain and other unpainted steel surfaces.
• Riding on the beach or in coastal areas exposes your bike to salt, which is very corrosive. Wipe down your bike frequently and wipe or spray all unpainted parts with anti-rust treatment. Damage from corrosion is not  covered under warranty so special care should be given to extend the life of your bike when used in coastal areas or areas with salty air or water.
• If the hub and bottom bracket bearings have been submerged in water or liquid, they should be taken out and re-greased. This will prevent accelerated bearing deterioration.
• If the paint has become scratched or chipped to the metal, use touch up paint to prevent rust. Clear nail polish can also be used as a preventative measure.
• Regularly clean and lubricate all moving parts, tighten components, and adjust as required. Regularly inspect all pre-attached and optional component hardware to ensure proper torque spec, secure attachment, and good working condition.

Cleaning your Ebike

• Never immerse the bike in or any of the components in water or other liquid. This can damage the electrical system and will void your warranty.
• Never clean the bike with high pressure jetted water. This can enter the electrical components and damage them.
• Always store the bike in a dry location. Thoroughly dry the bike after riding in the rain or washing it. Standing water can enter electronics or cause corrosion resulting in damage to the electrical system.

Remove the battery pack from your bike before cleaning the bikes. Use a damp cloth with mild soap as needed to clean the outside of the battery. Do not insert anything into the electrical connector on battery for any reason. These should remain clean and dry when the bicycle is properly cared for.
The bike can be cleaned with water from a garden hose, mild dish soap, and a damp cloth. Avoid spraying electronics on the handlebars, electrical connectors, ends of the hub motor where axle protrudes, rear cassette, front sprocket and chain.
Rinse soap away thoroughly with low pressure water. Thoroughly dry the bike and pay extra attention to remove any water from electrical components or connectors. Low pressure air from a hair drier or shop vacuum can also be used to help remove water from places that are difficult to reach.
Reinstall the battery after the bicycle has been cleaned and thoroughly dried. Make sure the battery is properly installed and locked into the bike.

• Tire Inflation and Replacement:

See the side wall of your bike tikes for the proper size tire for your bike. These tires use a rubber inner tube to retain air pressure. The tires on your bike are designed for typical terrain and surfaces the bike was intended to be used on. Only replace the tires with a similar tire design of the same size. Always check all items related to Tires and Wheels listed in the Pre-Ride Check before each ride. Properly inflated tires will help to ensure your best bike performance, longest range possible, and maximum life of the tires.
Keep your tires inflated to 40-65psi (2.8-4.5bar) at all times. Never exceed the maximum pressure listed on the tire side wall. Tires will loose air pressure over time. Always check tire pressure before operating the bike. Low tire pressure can result in damage to the wheels that will be more difficult and expensive to repair.
Always replace your tires with equivalent tires with reflective side walls. Your YOUNG ELECTRIC bike was equipped from the factory with this type of tire to provide the most visibility of you and your bike in low light conditions. Keep the tires clean to ensure the reflective side wall can function properly.
Recommended Service Intervals Regular inspection and maintenance are key to ensure lasting bike function as intended, and to reduce wear and tear on their systems. Recommended service intervals are meant to be used as guidelines. Real world wear and tear, and the need for service, will vary with conditions of use. We generally recommend inspections, service, and necessary replacements be performed at the time or mileage interval that comes first in the following table.

• Check hardware for proper torque
• Check drivetrain for proper alignment and function (including the chain, freewheel, chainring, and derailleur).
• Check wheel trueness and for quiet wheel operation (without spoke

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• Clean frame by wiping frame down with damp cloth.
• Use barrel adjuster(s) to tension derailleur/brake cables if needed.

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• Replace any components confirmed by YOUNG ELECTRIC Product Support or a certified bike mechanic to be damaged beyond repair or broken.

Monthly, 250-750 mi (402-1207 km)|

• Check brake pad alignment, brake cable tension.
• Check bike is shifting properly, proper derailleur cable tension.
• Check chain stretch.
• Check brake and shifter cables for corrosion or fraying.
• Check spoke tension
• Check accessory mounting (rack mounting bolts, fender hardware, and alignment).

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• Clean and lubricate drivetrain.
• Check crankset and pedal torque.
• Clean brake and shift cables.
• True and tension wheels if any loose spokes are discovered.
• Balance the battery.

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• Replace brake and shift cables if necessary.
• Replace brake pads if necessary.

Every 6 Month s, 750 1250 mi|

• Inspect drivetrain (chain, chainring, freewheel, and derailleur)
• Inspect all cables and housings.

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• Standard tune-up by certified, reputable bike mechanic is recommended.
• Grease bottom bracket.

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• Replace brake pads.
• Replace tires if necessary.
• Replace cables and housings ifnecessary.

Troubleshooting

1. Depleted/Very Low battery charge
2. Faulty connections
3. Battery not fully seated in connector
4. Improperly turned on
5. Blown Discharge Fuse in battery
6. Brakes applied or stuck

| 1.  Charge the battery

2.  Clean or repair connector

3.  Reinstall battery and ensure completely seated

4.  Review manual, follow start procedure

5.  Replace with new fuse on same size

6.  Disengage/free brakes

Reduced Range|

1. Low tire pressur
2. Low or faulty batter
3. Riding with too many hills, excessive load, headwind, applying brake while riding
4. Battery was left discharged for long period of time without regular charging, aged, damaged or unbalanced cells.
5. Brakes adjusted improperly

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1. Adjust tire pressure
2. Check connections and/or fully charge batter
3. Assist bike with greater pedal effort, Change route, reduce load on bike
4. Balance the battery. Contact Customer Service or Authorized Service shop if reduced range persists
5. Adjust the brakes to eliminate drag when brake levers are not pulled, ensure calipers and/or pads can move freely

Irregular acceleration and/or reduced top speed|

1. Insufficient battery powe
2. Loose of damaged throttle/PAS controll
3. Damaged torque sensor in bottom bracket

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1. Charge or replace batter
2. Replace Throttle/PAS controller
3. Contact Authorized Service shop for repair

Motor does not respond when bike is powered on|

1. Loose/damaged wiring connectio
2. Loose/damaged throttle/PAS control
3. Loose or damaged motor wires/plug
4. Damaged motor

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1. Repair and/or reconnect
2. Tighten or replace
3. Secure, repair, or replace damaged wires
4. Contact Authorized Service shop to replace

Battery will not charge|

1. Charger not connected well/completely
2. Charger damaged
3. Battery damage
4. Wiring damaged
5. Blown battery fuse

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1. Adjust the connections
2. Replace
3. Replace
4. Repair or replace
5. Reset circuit breaker or replace fuse

Wheel or motor makes strange noises|

1. Loose or damaged wheel spokes or rim
2. Loose or damaged motor wiring
3. Debris interfering    with wheels

|

1.  Tighten, repair, or replace
2. Reconnect or replace mot
3. Remove debris and inspect for damage

Limited Warranty

WARRANTY REGISTRATION CARD

Owner Name:
Address:
City, State, Zip, Country:
Phone：
Model: Color: Size：
Electric bicycle Serial Number:
Battery Serial Number:
Model:
Color:
Dealer Name
Address:
City, State, Zip, Country:
Date of Purchase:

Length of Warranty
Every bicycle has a useful product lifespan. This limited warranty is not meant to suggest or imply that the frame or components can never be broken or will last forever. This limited warranty covers manufacturing defects that occur within the normal lifespan and use of the product.
For YOUNG ELECTRIC E-bike, the serial number is the certificates for after- sales (warranty). Before purchasing, please check the serial number in detail. In case of a worn serial number, please do not purchase the E-bike.  The electric bicycle serial number is noted on the Master Carton and the bottom tube of frame. The battery serial number is noted on the battery pack.
Warranty Conditions
This limited warranty applies only to the original owner of the bicycle and is not transferable to subsequent owners or other transferee of the electric bicycle. Only the original owner of an electric bicycle purchased from YOUNG ELECTRIC online or YOUNG ELECTRIC authorized distributor or retailer is covered by Limited Warranty. The Warranty Period begins upon your receipt of the electric bicycle and shall end immediately upon the earlier of the end of the Warranty Period or any sale or transfer of the electric bicycle to another person, and under no circumstances shall the Limited Warranty apply to any subsequent owner or other transferee of the electric bicycle.

Bike Frame: 5 year warranty
All other mechanical components: 1 year warranty
Electrical components: 2 year warranty
For any warranty claim to be considered, the E-bike must be in an assembled, reasonably clean and sanitary condition and accompanied by the original, dated sales receipt for the bicycle (be sure to keep your receipt in a safe place!). This limited warranty is void if the bicycle is subjected to abuse, neglect, improper repair, improper assembly, lack of proper maintenance according to the owner’s manual, alteration, modification, installation of incompatible parts, corrosion, an accident or other abnormal, excessive, or improper use. This limited warranty is void if the bicycle is used in a rental or bike sharing program.
Damage resulting from normal wear and tear, including the results of fatigue, is not covered. It is the owner’s responsibility to regularly inspect and properly maintain his/her bicycle. Some items that typically exhibit damage from
normal wear and tear include:

• Bearings
• Bearing races
• Chain rings
• Cassettes
• Tires
• Tubes
• Saddles
•  Chain
• Brake pads
• Brake Disks
• Wheel Hubs
• Spokes
• Handlebar Grips
• Cables and housing
• Bushings

Damage to a Covered Component during shipping is not covered by this Limited Warranty, but YOUNG ELECTRIC will
replace such damaged Covered Components if you:

• Notify YOUNG ELECTRIC of a Covered Component damaged in the shipping process within thirty (30) days of your receipt of the electric bicycle;
• Provide YOUNG ELECTRIC with a dated picture of the damaged Covered Component;
• Return all original packaging and paperwork included with the electric bicycle;
• Note any immediately recognizable damage on the shipper’s Bill of Lading prior to signing off on the shipment.

Shipping damage claims are very time sensitive and it is your responsibility to immediately inspect the electric bicycle for damage upon receipt.
Paint fading caused by the effects of ultraviolet light (UV) or outdoor exposure is not covered by this limited warranty. All labor charges for warranty service, including the transfer of components and/or any installation of new components, are the responsibility of the bicycle owner Due to product evolution and obsolescence (such as products that have been discontinued or are no longer kept in stock), some frames or components may not be available for older or limited edition models. In these cases, YOUNG ELECTRIC may elect to provide a replacement that it determines to be the most nearly comparable model, but sourcing and paying for components is the responsibility of the bicycle owner.
All determinations under this limited warranty will be made in the sole discretion of YOUNG ELECTRIC, including but not limited to the decision to repair or replace a defective product, and what replacement product is the most nearly comparable product then available.
THE REMEDIES STATED ABOVE ARE THE EXCLUSIVE REMEDIES UNDER THIS WARRANTY. ANY AND ALL OTHER REMEDIES AND DAMAGES THAT MAY OTHERWISE BE APPLICABLE ARE EXCLUDED, INCLUDING, BUT NOT LIMITED TO, INCIDENTAL OR CONSEQUENTIAL DAMAGES, DAMAGES TO OTHER PROPERTY, OR ANY PUNITIVE DAMAGES. THIS IS THE ONLY WARRANTY MADE BY YOUNG ELEECTRIC ON ITS FRAMES AND COMPONENTS, AND THERE ARE NO WARRANTIES WHICH EXTEND BEYOND THE DESCRIPTION HEREIN. ANY WARRANTIES THAT MAY OTHERWISE BE IMPLIED BY LAW INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE EXCLUDED. PLEASE REFER TO THE DOCUMENTS INCLUDED WITH YOUR BICYCLE FOR POSSIBLE FURTHER RESTRICTIONS. THIS LIMITED WARRANTY GIVES THE CONSUMER SPECIFIC LEGAL RIGHTS. THE CONSUMER MAY ALSO HAVE OTHER LEGAL RIGHTS WHICH VARY FROM STATE TO STATE OR COUNTRY TO COUNTRY. SOME STATES AND COUNTRIES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES OR WARRANTIES, SO THE ABOVE LIMITATIONS OR EXCLUSIONS MAY NOT APPLY TO YOU. IF IT IS DETERMINED BY A COURT OF COMPETENT JURISDICTION THAT A CERTAIN PROVISION OF THIS LIMITED WARRANTY DOES NOT APPLY, SUCH DETERMINATION SHALL NOT AFFECT ANY OTHER PROVISION OF THIS LIMITED WARRANTY AND ALL OTHER PROVISIONS SHALL REMAIN IN EFFECT.

Distributed by Forcome Co., Ltd
Email: ebike@forcome.com
www.forcome.com
Version II

References

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• FORCOME

Read User Manual Online (PDF format)

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