1

USERMANUAL

2

IMPORTANT:This manual contains important safety, performance and service information. Read it before youtake the first ride on your new bicycle, and keep it for reference.Dear Customer,In purchasing this bicycle you have chosen a product of high quality and

technology. Each component of your new bicycle has been designed,manufactured and assembled with great care and expertise.These operating instructions contain a wealth of information on the

proper use of your bicycle, its maintenance and operation as well asinteresting information on bicycle design and engineering. Please readthese instructions thoroughly. We are sure that even if you have beencycling all your life you will find useful and detailed information.Bicycle and pedelecs technology has developed at a very rapid paceduring recent years. Therefore, before setting off on your new bicycle, besure to read at least the chapter “Quick start “first.The individual steps are subsequently explained in detail, supplementedby illustrations and diagrams.For more detailed information on your Pedelecs, refer to “Technical data”.Even a manual as big as an encyclopedia could not describe every

possible combination of bicycle models and components or parts on themarket. These operating instructions therefore focus on your newlypurchased bicycle and standard components and provide usefulinformation and warnings.

When doing any adjusting or servicing, be aware that the detailedinstructions and information provided in these operating instructions onlyrefer to this city/trekking bicycle or pedelecs

The information included here is not applicable to any other bicycletype. As bicycles and pedelecs come in a wide variety of designs withfrequent model changes, the routines described may requirecomplementary information. Comply also with the instructions of theparts manufacturers, which you can find on the enclosed CD.

Be aware that these instructions may require further explanation,depending on the experience and/or skills of the person doing the work.For some jobs you may require additional (special) tools orsupplementary instructions. This manual cannot teach you the skills of abicycle mechanic.

This manual cannot teach you how to ride. Please be aware that cyclingis a hazardous activity that requires the rider to stay in control of his orher bicycle at all times.

Like any sport, cycling involves the risk of injury and damage. Keep thisin mind. When you decide to ride a bicycle or pedelecs you need to acceptthe risk inherent to cycling.

3

Warning:This symbol indicates an imminent risk to your life or health, unless you

comply with the corresponding handling instructions, given or takepreventive measures.Caution:

This symbol warns you of incorrect actions that could result in damageto property and the environment.

Note:This symbol provides you with information about how to handle the

product or refers to a passage in the operating instructions that deservesyour special attention.

4

Content

Ⅰ. MechanismⅠ-1 DerailleurⅠ-2 StemⅠ-3 Direction Adjustment of Front WheelⅠ-4 BrakeⅠ-5 Seat, Seat PostⅠ-6 TyreⅠ-7 Bag StrapⅠ-8 Battery HolderⅠ-9 PedalⅠ- 10 Vehicle folding

Ⅱ. Electrical EquipmentsⅡ-1 InstrumentsⅡ-2 Electric MotorⅡ-3 Battery ChargerⅡ-4 BatteryⅡ-5 Electric Schematic Diagram of Whole VehicleⅡ-6 Wiring Schematic Diagram of SensorⅡ-7 Wiring Schematic Diagram of Instrument

Ⅲ. Examination & Maintenance

Ⅳ. AppendixⅣ-1 Common Sense of UseⅣ-2 Driving Strategies

Ⅴ. Quality Warranty

5

CLASSIC

Whole Vehicle Mark1. Motor2. Tire3. Rim4. Front fork5. Brake

7. Stem8. Handle bar9. Bell10. Saddle post clamp11. Saddle post

13.Rear rack14.Fender15. Rear reflector16. Spoke17.internal

brake18. Chain cover19.Chain20.Crank21. Pedal

23.Derailleur shifter24. Brake lever25.Displayer26.Frame27.Battery

6. Front light 12. Saddle Derailleur and roller 22.Hand grip 28.Bell

Product Definition: Power Assisted Two-wheeled VehiclePower Assisted Two-wheeled Vehicle is working with continuous rated power of 0.25KW and theelectric power will gradually recede to out of battery when the speed reaches 25km/h or when riderstops cycling pedal action.

6

Ⅰ. MechanismⅠ-1. Derailleur

1.Installation of the sprocket to the hubPlace right hand dust cap C onto the driver on the right side of the hub body. Next, install the sprocket and secure it in placewith the snap ring.

2.Installation of the cassette joint to the hubInstall the driver cap to the driver to the right side of the hub body. Next, turn the cassette joint pulley in the direction of

the arrow so that the yellow mark “ ” is aligned with the yellow mark“ ”, and then align the yellow marks“ ”on the

cassette joint with the yellow marks “ ”on the right side of the hub body.

7

3. Secure the cassette joint to the hub with the cassette joint fixing ring. When installing the cassette joint fixing ring, align

the yellow mark “ ” with the yellow mark “ ” on the cassette joint pulley.After installing the cassette joint fixing ring, turn it 45 clockwise.

4. Installation of the hub to the frame4.1 Mount the chain on the sprocket, and then set the hub axle into the fork ends.

4.2 Place the non-turn washers onto the right side and left side of the hub axle. At this time, turn the cassette joint so thatthe projecting parts of the non-turn washers fit into the grooves of the fork ends. If this is done, the cassette joint can beinstalled so that it is almost parallel to the chain stay.

8

4.3. Take up the slack in the chain and secure the wheel to the frame with the cap nuts.

4.4 Fix the brake arm securely to the chain stay with the brake arm clip.

Note: When installing the brake arm clip, securely tighten the clip screw while holding the clip nut with a 10 mm spanner.

After installing the brake arm clip, check that the clip screw protrudes about 2 – 3 mm from the surface of the clip nut.

Brake Arm Seat on BackFork of the Vehicle Frame

4.5 Before using the Coaster Brake, check that the brake works properly and that the wheel turns smoothly a

9

Ⅰ-2. Angle & Height Adjustment of StemⅠ-2.1 Angle Adjustment of Tool-adjustable Stem

Loosen adjusting screw anticlockwise with internal hexagonal wrench, and then adjust the angle. Handlebar can beadjusted to proper angle by loosing lock screw.

Ⅰ-2.2 Horizontal Angle & Height Adjustment of Tool-adjustable Stem

Take out the rubber plug,Insert a 5mm internal hexagonal wrench in the hole to loosen the tightened front forkanticlockwise. Loosen the bolt according the aforesaid method, hold the handlebar by two hands and turn the handlebarleft and right as well as lift it higher or lower to get the proper height. After finishing the procedure, tighten it clockwise.

Ⅰ-3. Direction Adjustment of Front WheelMake stem in horizontal and adjustable status as above. Face the vehicle and stand right in front of the vehicle. Hold thefront wheel by two legs and turn the handlebar. Adjust the center of front wheel vertically to the center of handlebar.

Ⅰ-4. Brake Adjustment

Ⅰ-4-1. V-brake AdjustmentThe city bike uses the European style of the brake system. The left brake lever is for the front wheel while the rightfor rear wheel.

For the adjustment or replacement of brake shoes.the 4 next steps must be followed:1. Reposition the cable in the brake fork.2. The shoe must be aligned with the flank and must not rub against the tire.3. The shoe must be slightly inclined according to the angle of rotation of the wheel.4. The distance separating the brake from the flank must be 3 to 4mm. the cable tension can be adjusted to obtain

this spacing which can also be modified by the brake handle regulator or the brake caliper regulator.On most brake calipers there is an adjustment screw which allows the balancing of this space.Attention! Observe the tightening schedule ( see tightening schedule chart )Hint! When adjusting the shoe balance the wheel must be correctly positioned in the fork or the rear stems. Avoid allcontact between the shoe and the tire.

Important

7

Brake pad wear limit: replace the brake pads before the friction material has been worn down to less than 2.5 mm.

1.Open the brake lever and place the nipple end of the short brake cable into the lever, then close the lever. Securethe ferrule against the lever using the cable adjusting barrel.

2.If fitted with V-Brakes, insert the brake body into the center spring hole in the frame mounting boss, and thensecure the brake body to the frame with the link fixing bolt.

3. While holding the shoe against the rim, adjust the amount of shoe protrusion by interchanging the position of theB washers (i.e. 6 mm and 3 mm) so that dimension A is kept at 39 mm or more.

8

alance with the spring tension adjustment scre

4.While holding the shoe against the rim, tighten the shoe fixing nut.

5. Pass the inner cable through the inner cable lead. Set the cable with a clearance of 1mm between each brake padand the rim, tighten the cable fixing bolt.

6. Adjust the b ws.

7. Depress the brake lever about 10 times as far as the grip to check that everything is operating correctly and that the shoeclearance is correct before riding the bike.

9

It is important to become familiar with the use of hand brakes. When properly adjusted, hand brakes are an efficientbraking system. Keep the rim and brake shoes clean and free from wax, lubricants and dirt at all times. Keep brakesproperly adjusted and in good working condition at all times.Check your Brakes

Press each brake lever to make sure that there is no binding and that the brake pads press hard enough on the rims tostop the bike. The brake pads should be adjusted so they are 1 mm to 2 mm away from the rim when the brakes arenot applied. Brake pads should be centered on the rim and “toed-in” so the rear portion of each brake pad is about0.5 - 1.0 mm farther from the rim than the front portion of the brake pad.

Ⅰ-5. Cushion Adjustment1. Loosen the lock bolt to adjust cushion angle with a 5mm internal hexagonal wrench as shown in the figure. Range ofadjustment is -15°~15°.Note: it is commonly better to adjust the cushion horizontally to the ground line.

2. As shown in Figure 1, loosen the lock bolt with a 5mm internal hexagonal wrench to adjust cushion height to a properposition. If a quick-release seat post clamp is used, pull the quick-release lever only.Hint: What is proper height? Heel can be freely put on pedal with leg straight. When cycling pedal action is done, knees canbe slighted bent (show in Figure 3). Feet can touch the ground without standing.Note: When adjusting seat post upwards, safety line cannot be exceeded. Safety line (11111111) should be in the frametube (as Figure 2). Tightening torque of seat post clamp should not be less than 18N.m

10

Figure 1 Figure 2

Figure 3

3. Cushion with Shock Absorption/ How to adjust soft or hard effect of shock absorption Rotate to loosen the bolt of seatpost clamp and pull the whole seat post out according to Article 2. Rotate the bolt with 8mm internal hexagonal wrenchanticlockwise to make the shock absorption softer and clockwise to make it harder.

I-6. Tyre1. Check whether rim is deflected or loosened and whether spoke is loosened or broken before riding. If any unusualcondition, ask professional technician for adjustment or change.2. Please change the tyre if cover tyre grain is worn and torn.3. Please guarantee proper PSI. When inflating, please take nominal value of cover tyre as reference. Never inflate over thepressure or under the pressure.Caution: Please make sure the contact area of tyre and ground should not be less than 10cm while riding.

I-7. Disassembly of Elastic Band on Rear Rack

11

As shown in the following figure, grab the plastic buckle and push it downwards to release the fastener.

I-8. Battery HolderBatteries Installation: open the lock of the battery box, support the side of the battery box , and pull it out (as left picture);Remove the battery out: put down the end of the battery box aligned to the card slot, and then press down the end handle,and then lock (as right picture).

Charging the position: To connect the charger interface in this location.

I-9. Change of Pedals

12

Left pedal and right pedal should be clarified when changing. Pedal spindle is usually engraved with “R” and “L”.Tool: 15mm open end wrenchWhen changing Right side, clockwise rotation is to lock and anticlockwise rotation is to disassemble.When changing Left side, clockwise rotation is to disassemble and anticlockwise rotation is to lock.Tightening torque should be more than 18N.m

Ⅱ. Electrical Equipments

Ⅱ-1. InstrumentsTwist Shift type displayer （LCD）The use of the turning handle type LCD instrument1. Description of the Parts see Picture 1:① Battery Power indicator ;② Power-assisted level indicator;③ Speed④ Mileage⑤ Hidden magnetic switch button;⑥ Power shifting handle

Picture 1 Picture 2

2.Power on / offUse the magnetic key to stay hidden magnetic switch button ⑤ at about 5 seconds, it will turn on theelectric system; then LCD displayer is lit. After use, when you need to switch off, use the magnetic keyto stay about 5 seconds at the hidden magnetic switch button ⑤, the hidden magnetic switch buttonwill turn off the electric system; then all the instrument lights will turn off. Be sure to pay attention:after the hidden magnetic switch works, please remove the magnetic key in time, to avoid switchingrepetitive movements.

3.Power displayAfter the power on, the battery power display window ②will show automatically; When the battery isfully charged, the four black stripes will be showed; in the vehicle riding electric assist mode process,with the consumption of electricity, the four display lights will be one by one extinguished. When thethird light goes out, the vehicle power deficit needs to be charged, suggest to turn off the power assistsystem in time. Special tips: with the increasing using frequency, the battery capacity will be graduallyreduced, and the user will be required to gradually reduce the estimate of the remaining capacity.4. Speed displayAfter the power on, the battery power display window③ will show automatically. when the bike does

13

not move ,it will show zero. Along with the mobile speed ,The displayed value increase.5. MileageAfter the power on ,The Mileage display window④will show the bikes have distance.

Attention: The range of maximum display of the Mileage display window is 999 kilometer. when

reach maximum display, it starts from zero to display.6.Power assisted level adjustmentThe power assisted level automatically at 1 level (the lowest power level). After switch on the power,when the rider encounters against the wind, uphill, physical decline, the power assisted level can beraised; the specific approach is: hold the shifting handle ⑥ forward and turn softly and quickly totouch the front stopper, it will raise a power-assisted level, and the corresponding power-assisted levellight will turn on; Repeating the operation once the power assisted level continue to rise one level untilthe most top grade the fourth level. If necessary, the user can downward shift the shifter, the specificapproach is: hold the gear turning handle⑥ backward and turn softly and quickly, to touch the rearstopper, it will reduce the power level, then the original power assisted level indicator light will goesdown; Repeating the operation once the power assisted level position continue to turn one level untilthe lowest level change to the 1 level. Attention: after adjusting the power assisted level, let theshifting gear turning handle reset, to avoid the repeat action, to the adoption of the high sensitivemagnetic switch, users only need to use slight force to turn the turning handle; if use the strengthforce to turn over the stopper, the switch will be damaged.

7.The use of the front and rear lightsThe front light: when the customer uses the front light at the first time, need to draw out the plasticsheet of the front light. Press down the button of the front light, the front light can be turned on or off.The front light uses the small pieces of dry batteries, please always pay attention to promptly replacethe battery power.The rear light: the rear light turns on or off according to the electric system. The rear light uses thebattery’s power.It is no need to replace the battery. When riding at night, even if the power is loss ofelectricity, also suggest do not shut off the system to ensure that the rear light is lit, to ensure thesafety of riding.

Ⅱ-2. Electrical Motor

1、Technical DataElectrical Motor Mode 24V 36V

Rated Voltage 24V 36V

Rated Current ﹤10.5 ﹤6.95

Rated Power 350W 350W

Rated Efficiency ﹥75% ﹥75%

Idling Current ﹤0.95A ﹤0.8A

Idling Speed 220±10RPM 235±10RPM

Highest Speed 25km/h 32 km/h

Maximum Torque 15N*M 15N*M

Phase Angle 120° 120°

Certification CE CE

14

Ⅱ-3 Technical indicators and structural of Changer

External Dimension of Electrical Motor & Diagram of Coil-out

Ⅱ-3-1. Technical Data

Charger Mode MDA11542002000 MDA10129402000

Temperature ofWorking Environment

room temperature < 37℃

Input Voltage AC100-240V; 50HZ/60HZ

Rated Voltage 36V 24V

Current ofConstant–current Charge

1.8--2.0A±5% 1.8--2.0A±5%

Voltage ofConstant–voltage Charge

42V 29.4V

Terminal Current 250mA 250mA

Idling Voltage 42V 29.4V

Weight 0.8Kg 0.8Kg

Ⅱ-3-2. Charge Curve Graph

15

Ⅱ-3-3. Structure Diagram of Charger

Ⅱ-3-4. Method of Application1.1 When charging, connect output plug ③ of the charger to charging port ⑤ of the battery unit and connect transferport② to④. Then connect attaching plug① to indoor power.1.2 Charger adopts smart regenerative charging with constant current and voltage. According to different depths ofdischarge, battery can be fully charged within 4-6 hours. Although charger will stop working when battery is fully charged, itis suggested to take off the charger. When battery is fully charged, the attaching plug should be first torn off, then pull theoutput plug of the charger.1.3 Attaching plug of the charger should be pulled out when the charger is not used or the charging action is done.1.4.1 “Charging” Indicator Light. When it is normally charged, the charging indictor light is “red”. When the light is “green”,it represents the battery is charged and can be put into use.

Ⅱ-3-5. Maintenance & Attentions:2.1 Charger should be used with designated battery strictly according to requirements. It is forbidden to chargenon-original battery with this charger.2.2 Charger is dangerous due to the high voltage it contains. If any faults or failures are found, please contact the dealeror the manufacturer for help. User or non-professional servicemen of the Company are forbidden to open the charger.2.3 Charger and battery should be in indoor environment with good ventilation and heat dissipation when charging.Places within 1m around battery and charger should be free of inflammables. Never use the charger in the environmentwhich is with moist, high temperature, inflammables and explosive gas.2.4 Never take the charger along with the vehicle so as to avoid damage caused by vibration.2.5 Carefully read the contents before application. Manufacturer assumes no liability or responsibility for any damagescaused by misuse of abnormal operation.

Ⅱ-4. Technical Data & Structure of Battery

Ⅱ-4-1. Technical DataSpecification

Data36V 24V

Rated Voltage 36V 24V

Charging Voltage 40.15V±1% 31.5V±1%

Charging Current 2.0A±5% 2.0A±5%

MaximumDischarging Current

2C(C is battery capacity)

16

Charging Method smart regenerative charging

Battery Indicator 5-section LED battery indicator 100%—20%

Weight 5.3Kg 3.8Kg

Ⅱ-4-2. Product Application

1. Battery ChargingBattery should be charged timely after riding the power assist vehicle. Lithium battery of the Company should be charged

with designated charger. Connect the output plug to the charger and then connect the charger to 220V alternating currentpower supply. Battery can be used after charging 6-7 hours until the charging indicator light turn from red to green.

2. Battery DischargingRiding process of the power assist vehicle is the process of battery discharging. Users are not permitted to over

discharging the battery. Over discharging may cause severe damage to battery life. When instrument displays that thebattery is under voltage, the controller will stop power supplying at any time.

3. Battery Storage & Additional ChargingReserve of electricity will somewhat lose when storing or during the transportation process. Battery should be additional

charged before use. Charging method is as above.

4. Battery Use, Maintenance & Attention4-1 Never put battery close to heat source of high temperature;4-2 Charging environment is better to be below 37℃;4-3 Avoid charging under direct sunlight;4-4 Resolutely use designated charger to charge the battery;4-5 Short circuit is not allowed at battery charge port;4-6 Never put battery in wet places or in water;4-7 Never randomly dismantle the battery or do any unauthorized modification;4-8 Never impose external forces on the battery or drop it from high places;4.9 When battery is not in use, it should be fully charged and stored in a dry and cool place. Places within 1m around thebattery should be free of inflammables and is insulating. Battery should be kept away from heavy load and the children.Complete additional charging should be conducted every 2 months.5. Warranty Period: 2 years since the date of leaving factory.

Special Warn:○1 . Never clean the vehicle with hydraulic monitor which may cause damage to electrical components

due to water intake.○2 . If the product smokes or burns when damaged by external forces, put it out with dry-chemical fire

extinguisher or sandy soil.○3 . Although lithium battery is environmental friendly product, it also contains various kinds of

chemical substances. When it is broken due to aging, it may pollute the environment. Therefore,please discard it as useless within 36 months since the date of purchase, and give it to skilledcompany for professional treatment.

5. Disclaimers of Manufacturera. no responsibility for any damages caused by nonconforming the requirements in application instruction;b. no responsibility for any damages caused by any unauthorized modificationc. no responsibility for any damages caused by force majeure.

17

Ⅴ. Quality Guarantee1. In accordance with the contents of the guarantee, you can enjoy the original quality assurance and after-salesservice.2. Apply for a free repair, held this warranty, the bicycle with you, directly contact to the original purchase store.3. There is a frame number of all the company’s products, for product traceability and sales advice.4. Please keep this guarantee safely, if lost will not be entertained.*If past the warranty period for free repairs, if your bicycle need to be repaired, please contact any store, they will behappy to serve you, but need to charge the cost fee and the wages.*The warranty period and the conditions list in this guarantee only provide free service from morning till night, anddoes not burden any legal obligation

Ⅱ-5. Cycle wiring diagram

18

19

20

21

Ⅲ. Maintenance and Correct ApplicationⅢ-1 MaintenanceWhen the cycle is used, many components are abraded and worn and fasteners such as screws may be loosened, which maycause malfunction and even danger during riding if not noticed. Therefore, ordinary check and maintenance are required.Maintenance:To ensure safety during riding, please check all screws and moving parts once every month. Routine maintenance on brake,transmission and others shall be guaranteed to keep normal functions of all parts any time. For details, please makereference to the following table:

◆ Adjustment ★ Checking/ Cleaning ● Replacing ◎ Tightness ▲ lubricate

Inspection item New60days

180days

360days

540days

720days

1 Position of Hand bar & saddle ◆ ◆ ◆ ◆ ◆ ◆

2 Moving or abrarion of steering system ★▲ ★▲ ★▲ ★▲ ★▲ ★▲

3 Moving or abrarion of bottom bracket and pedal ◎ ★▲ ★▲ ★▲ ★▲ ★▲

4 Tire pressure ◆ ◆ ★ ★ ★ ★

5 Moving or abrarion of bearing in Front and rearhub

◎ ★▲ ★▲ ★▲ ★▲ ★▲

6 Loosen of Chain ◆ ▲ ▲ ▲ ▲ ▲

7 Performance of brake ◆ ◆ ◆ ◆ ◆ ◆

8 Abrarion of brake pad ◆ ◎ ★ ★ ★ ★

9 Position of brake lever ◆ ◆ ◆ ◆ ◆ ◆

10 Distortion of chainwheel and Crank ◆ ◎ ◎ ◎ ◎ ◎

11 Distortion and runout of rim ◆ ◆◎ ◆◎ ◆◎ ◆◎ ◆◎

12 Losen or fracture of spoke ◆ ◆ ◆ ◆ ◆ ◆

13 Distortion or break of fender ◆ ◆ ◆ ◆ ◆ ◆

14 Distortion of frame and fork ◎ ◎ ◎ ◎ ◎ ◎

22

Ⅳ.Postscript

Ⅳ-1. Correct application1.Before the electrically power assisted cycle is used, the height of the saddle and the handlebar shall be adjusted toensure comfort during riding and reduce fatigue. The height of the saddle and the handlebar changes upon differentriders. Normally, the saddle shall be adjusted until the rider can put one foot on the ground (the whole cycle almoststands vertically) and the handlebar shall be adjusted until the rider can stretch forearms comfortably and feelshoulders and arms relaxed. However, it shall be ensured in advance that the seatpost and the handle stem areinserted over the safety lines for the adjustment of the saddle and the handlebar.2. Check and adjust the front and rear brakes before the electrically power assisted cycle is used. The front brake iscontrolled by the right brake handle and the rear brake is controlled by the left brake handle. The front and rearbrakes shall be adjusted until braking is achieved by the left and right brake handles which reach half stroke. Replacebrake shoes timely when abraded excessively.3. Check the chain before the electrically power assisted cycle is used. It is hard to ride when the chain is too tenseand it is easy to vibrate or touch other components when the chain is too loose. The chain slack shall be 1-2mm. It canbe properly tensioned if the cycle is not pedaled. When the chain is adjusted, loosen the nut of the rear wheel andthen evenly tighten or loosen the left/right adjusting screw to adjust the tension of the chain. Then re-fasten the nutof the rear wheel.4. Check chain lubrication before the electrically power assisted cycle is used. Touch and observe whether the chainaxis rotates flexibly and whether chain links are severely corrosive. If corrosion or inflexible rotation occurs, properlyadd lubricating oil and if it is serious, replace the chain.5. Before the electrically power assisted cycle is used, check the tyre pressure, flexibility of the handlebar, flexibility ofthe front and rear wheels, circuit, battery, motor, lighting, fasteners and others and ensure they are satisfactory.（1）Insufficient tyre pressure will increase the abrasion between tyres and the ground, which reduces the distanceper charge; moreover, it reduces the flexibility of the handlebar and affects the comfort and safety during riding. Addpressure when it occurs and tyre pressure shall be consistent with suggested pressure values in the OperationInstruction of the Electrically Assisted Power Cycle or required pressure values in the tyre surface.（2）When the handlebar is inflexible, seized, rigid or tight, lubrication or adjustment shall be conducted timely. Forlubrication, butter, calcium-based or lithium-based grease is normally adopted. When it is adjusted, loosen the lockingnut of the front fork and rotate the fork block until the rotation flexibility reaches requirements. Then lock the lockingnut of the front fork.（3）The inflexibility of the front and rear wheels will increase the rotational friction and energy consumption, whichmay reduce the distance per charge. Therefore, lubrication and maintenance shall be carried out timely in the case ofany malfunction. For lubrication, butter, calcium-based or lithium-based grease is normally adopted. Replace steelballs or hub in the event of hub malfunction; send it to the professional repairer in the event of motor malfunction.（4）For circuit check, make it switch on and check whether it works normally, whether the connectors are insertedfirmly, whether the fuse works normally and especially whether the output terminal of the battery is reliablyconnected to cables. Eliminate all errors timely if necessary.（5）Before using the cycle, you shall check the battery and judge whether the remaining power is enough for riding.If it is not enough, you shall pedal the cycle to avoid undervoltage working of the battery.（6）Before using the cycle, you shall also check the work condition of the motor. Observe and hear the working motor.Repair it timely if any abnormality is found.（7）Before using the cycle, you shall check lighting, especially at night. The headlight shall be on and the beams shallbe within 5-10 meters far from the head of the cycle.（8）Before using the cycle, you shall check whether all primary fasteners are fixed, such as handlebar, handle stem,saddle, seatpost, front wheel, rear wheel, central axis, locking nut and pedals which shall not be loose. If any fastener

23

is loose or fallen down, it shall be fastened or replaced timely. Suggested torque for fasteners is normally 18N.m forhandlebar, handle stem, saddle, seatpost, front wheel and pedals as well as 30N.m for the locking nut of the centralaxis and rear wheel.7. This electrically power assisted cycle is not suitable for uneven or much sloppy roads (normally ≤8°). You shall slowlydrive or push the cycle forward under such road condition. Due to such bad condition, the service life of the motor,controller and battery will be shortened and they are likely to be damaged.8. When the electrically power assisted cycle is used when it is cold, pay attention to the remaining power and voltageindication of the battery. Under cold condition, the depth of discharge shall be properly reduced and it is forbidden todrive when under voltage, since the charge capacity and discharge capacity are lowered in cold days.9. The electrically power assisted cycle can work normally in rainy or snowy days. However, when it rides acrossaccumulated water, the height of accumulated water shall not exceed the bottom line of the central shaft tube toprevent water from entering and causing damage. The cycle shall be cleaned to be dry after running in rainy or snowydays. Electrical components which are immersed in water shall be dried with dryer to prevent corrosion, creepage,short circuit or other malfunction.10. You shall reduce your speed when riding in rainy or snowy days and increase braking distance to prevent sideslipor accidental u-turn which may cause damage to body.11. The electrically power assisted cycle shall not be exposed to sunlight for a long time and shall be stored in a coolplace. Exposure to sunlight will accelerate aging of paint, plastic parts, rubber parts and electronic parts, and alsoreduce their service life and reliability.12. When the battery is charged, only an attached charger or a charger of model designated by our company can beused. The battery and the charger shall be put in a ventilated place for charging and placed stably and far frominflammable goods, explosive goods, high temperature, moisture or shower. It is forbidden to cover the battery or thecharger during charging. They shall be out of children’s reach. Before charging, confirm that the power supply andfrequency from the grid are consistent with charger requirements. Connect the battery with the output terminal ofthe charger and the input terminal of the charger with the grid. After charging is finished, disconnect the grid and thendisconnect the charger with the battery.13. The battery can not be used in the event of undervoltage. It shall be charged immediately. Deep discharge oroverdischarge is forbidden.14. The battery shall be kept in a cool and moderately moisture place with face upwards. For a long-term storage, thebattery shall be charged every three months and half charge is enough.15. Carefully read the User Manual for this electrically power assisted cycle before using this cycle for the first time.Understand the performance of this electrically power assisted cycle and do not lend it to others who are not able tooperate an electrically power assisted cycle.16. Mental patients, alcoholics and other disabled not suitable for riding are not allowed to use electrically powerassisted cycles. Riders with heart disease, epileptics and color-blinded riders shall ride this electrically power assistedcycle carefully.17. Electrically power assisted cycles are non-motor vehicles and riders shall comply with local traffic regulations. Youshall ride it on the non-motor vehicle lanes or locally designated lanes for such cycles.18. Electrically power assisted cycles shall be kept in a cool, ventilated and dry place and also far from corrosive liquidor gas. During storage, electrically power assisted cycles shall keep vertical with sufficient tyre pressure. Heavy goodscan not be loaded on the cycles and the battery shall be stored separately.

Ⅳ-2. Driving skill

1. Preparations before driving

Individualized adjustment

24

Bicycles are designed in accordance with ergonomics and with proper size, which can not only reduce injuries but alsoincrease comfort.It is normally measured as follows:Ride on the cycle and put your feet on the ground; keep 2.5cm from the crotch to the top tube and 5cm to theallrounder. For women’s cycles, the joint between the top tube and the head tube shall be kept 2.5cm from the crotch.2. Riding skill and safety

Correct riding posture ensures safety: the riding posture is dependent on the relative position of the contact betweenthe rider and the cycle (handlebar, saddle and pedals). It is also closely related to the height of the rider. The ridingposture is important for determining the efficiency of muscle exercise and also the safety of operating handlebar andbrakes.

Follow these riding skills for safety:⑴Adjust the height of the saddle: step the pedals downwards with heels; the joint and muscle of the lower limbs shallflexibly bend and stretch, and meanwhile the feet can be slightly straight.⑵Forward and backward: step on the pedals at the angle of 45 degree and then adjust the saddle forward orbackward until it can match with the hamstring strength at the pedals to be at the best position.⑶Adjust the position of the handlebar: generally, the upturned grip shall be nearly 30-50mm higher than the saddle,and the flat handle shall be as high as the saddle. The downturn grip shall keep its top as high as the saddle. Afteradjustment, pay attention to the handlebar direction and then lock it.⑷Correct riding posture: keep your upper body slightly forward and elbows bent as equilateral triangle.⑸Sitting posture: it is similar to riding a horse; distribute your body weight to the handlebar and pedals; do not put allyour weight on the saddle as it causes hurt to hips.⑹Pedaling skill: put the front 1/3 point of the shoes at the center of the pedals. Your feet movement shall be parallel

with the central line of the cycle. If not, the efficiency of pedaling will be reduced. Keep even speed, otherwise youmay feel tired. Specially note pulling function which pulls the pedals.

3. Speed change skill:

⑴Do not pedal the cycle reversely when changing speed to avoid chain dropping caused by malfunction.

⑵Do not change the variable gear ratio dramatically; gradually change speed upon terrain to avoid feet fatigue.⑶When you are 60 meters from the slope, gradually change your speed upon slope. Normally, people are used to

change speed when it is hard to climb, which affects speed, causes danger of falling down and also increases abrasionof components.⑷For long-term storage, change the chain to the minimum crankset and the small flywheel to avoid elastic fatigue of

components.

4. Braking skill: the most important for safe driving

⑴Emergency brake skill: for emergency brake, rear brake shall be before front brake. However, people normally brake

both at emergency. If the braking distance is proper, it can brake safely; but if deceleration is too fast, the rider may becast forward. To avoid such danger, it is best to brake intermittently and meanwhile push your hips backwards,especially in rainy days or on boracite roads.⑵Speed control skill: especially when you ride downhill as it speeds up and prepare for speed change, you must

control brake to decelerate before change in order to prevent danger of exceeding the yellow line and being off theroad.

25

5. Climbing skill:

When you are climbing the slope, it is not enough to step pedals hard, which makes you feel tired. So please adjust theassisted power to highest in advance .Then you can shift the derailleur base on you personal preference. There aresome skills as follows:⑴After speed change, move the rear flywheel to the big crankset or move the front big crankset to the small

crankset, which can make you feel comfortable and keep the speed.⑵Utilize the strength of the upper body: grasp the lower part of the downturn grip, slightly move back the waist, pull

the grip towards your breast and step the pedals forward to utilize the muscle of the upper body naturally and makeclimbing easy. Do not leave the saddle for pedaling, which makes you feel tired easily. It is best to inhale twice andexhale once during climbing to gain sufficient air.