BK-DM02EB - Electric bike SHARP - Free user manual and instructions

Product Type	Electric Bike
Brand	Sharp
Model	BK-DM02EB
Bike Weight	25.5 kg
Nominal Speed	25 km/h
Range	Approximately 45 km
Maximum Load	100 kg
Recommended Rider Height	150 – 190 cm
Tire Size	28" (700 x 40C)
Frame	Steel with front suspension fork
Motor	Rear hub motor 36 V, 250 W
Battery	Lithium 36 V, 7.8 Ah (280 Wh), frame-integrated
Charging Time	4 to 5 hours
Charger	AC 100-240 V / DC 42 V, 2 A
Display	LED with 5 levels of assistance
Brakes	Mechanical disc brakes 160 mm
Derailleur	6-speed, Shimano Tourney TZ
Lighting	Front headlight and rear light (AAA batteries)
Pedal Assist	Speed sensor, 5 levels of assistance
Walk Assist Mode	Yes (long press on button –)
Maintenance and Cleaning	Clean with a soft cloth and non-abrasive detergent; regular chain lubrication
Recommended Storage	Dry and covered place, battery between 0 and 25°C
Tire Type	Tubeless (tubetype)

Frequently Asked Questions - BK-DM02EB SHARP

How to assemble the Sharp BK-DM02EB electric bike?

The bike is delivered with the handlebar turned. Turn it perpendicular to the bike and adjust the angle using a hex key. Install the pedals respecting the tightening direction (right: clockwise, left: counterclockwise) with a torque of 35 N·m. Adjust the seat height by opening the quick-release lever, then tighten.

How to charge the bike battery?

Open the rubber cap, connect the charger to the bike's charging port, then plug the charger into the wall socket. The red indicator light shows charging; when it turns green, charging is complete. Unplug the wall socket first, then disconnect the charger from the bike. Close the cap.

What is the actual range of the bike?

The stated range is approximately 45 km, but it varies depending on user weight, terrain, tire pressure, weather conditions, and the level of assistance used. On hills or in strong wind, the range decreases.

How to use the pedal assist system?

Turn on the bike by pressing and holding the ON/OFF button. Start pedaling, then press the +/- buttons to choose among 5 levels of assistance. Level 1 is the lowest, level 5 the highest. The motor stops when you stop pedaling or exceed 25 km/h.

What to do if the battery no longer charges?

Check that the charger is properly connected and that the indicator light is on. If the battery has been completely discharged for a long time, it may enter self-protection mode: contact your dealer. Never leave the battery discharged unused; recharge it at least once a month.

How to maintain the disc brakes?

Regularly check the wear of the brake pads and the tightness of the bolts (torque 5-8 Nm). If braking is insufficient, clean or replace the pads. The discs get hot after use: do not touch them immediately.

What are the important safety precautions?

Always wear a helmet. Check the brakes, tire pressure, and bolt tightness before each ride. Follow traffic rules and the speed limit (25 km/h). Do not ride on rough terrain, in the rain, or perform stunts.

How to adjust the seat height?

Open the quick-release lever under the seat, adjust the seatpost height respecting the stop mark (do not exceed), then close the lever. The angle can be adjusted by loosening the lock under the seat. The leg should be straight when the pedal is in the down position.

How to change a flat tire?

Completely deflate the tire, remove the wheel, take off the tire using tire levers, remove the punctured inner tube and replace it with a new one. Slightly inflate, reposition the tire on the rim, then inflate to the recommended pressure. Avoid screwdrivers to prevent puncturing the tube.

How to store the bike during winter?

Thoroughly clean and dry the bike. Deflate the tires by half, hang the bike if possible and cover it with a cloth (not plastic). Charge the battery to about 60% and store it in a dry place between 0 and 25°C. Recharge it every two months.

USER MANUAL BK-DM02EB SHARP

User manual

BK-DM02

Electric Bike

*Product images are for illustration purpose only. Actual product may vary.

Use this Quick Guide to set up and start using your e-bike. For more detailed information on your model of e-bike, please refer to the on-line manual which can be found by following the link below or scanning the QR Code and searching by model name BK-DM02.

https://www.sharpconsumer.com/support/

Quick start guide

Warranty guide

Charger manual

Charger

Pedals

Useful tools (Not included) Open end wrench 15-13mm

Allen key-6mm

Allen key- 5mm

1. Handlebar
2. Stem
3. Front fork
4. Tire
5. Disc Brake
6. Crank
7. Chain
8. Saddle
9. Taillight
10. Headlight
11. Side stand
12. Carrier
13. Display
14. Derailleurs

Important safety instructions

Please, read these safety instructions and respect the following warnings before the appliance is operated:

The lightning flash with an arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude as to constitute a risk of electric shock to persons.

The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.

This symbol means that the product should be disposed of in an environmentally friendly manner and not with general household waste.

AC voltage

Class II equipment

In order to prevent fire always keep candles and other open flames away from this product.

IMPORTANT: Read the following carefully and keep it for future reference.

CAUTION: Wear a protective helmet!

To reduce the risk of injury, wear a suitable helmet when riding!

Risk of accident and injury

• Incorrect operation of the e-bike due to insufficient knowledge may cause an accident. Please familiarize yourself with the features of the e-bike before riding.
• Familiarize yourself with the brake lever in advance if you are not sufficiently aware of the front and rear brakes' placement. Please also adjust accordingly before riding.
• Please make sure the brakes are properly adjusted and function well.

CAUTION: Hardware may not be fully tightened, including but not limited to bolts, nuts, the front hub shaft, the rear wheel, steering mechanisms (handlebar, stem), the brake system, the driving system, pedals, etc.

To reduce the risk of injury, ensure that all bike hardware is locked tightly and correctly into position and that there is no loss of equipment, breakage, or other types of damage.

CAUTION: This bike is designed for adults. Children may only ride under the supervision of adults.

To reduce the risk of accident and injury, make sure that the bike and any of its structures are not within the reach of children under the age of 3.

CAUTION: Component breakage due to improper use of the bicycle may occur.

Risk of accident and injury!

• Do not ride over ramps or mounds with the bicycle.
• Do not ride this bicycle in cross-country cycling.
• Do not ride the bicycle over stairs, rocks, or other steps with a height greater than 15 cm.

Improper additions or alterations to the bicycle and incorrect accessories can cause the bicycle to malfunction.

To reduce the risk of accident and injury, do not add any extra accessories that are not purchased from the seller or without getting permission from the seller, including but not limited to child safety seats, trailers, etc.

CAUTION: Do not ride the bicycle in a risky way.

To reduce the risk of accident and injury, ride the bicycle only in the correct way. Make sure you are able to control the bike and do not try dangerous actions, including but not limited to riding with no hands, jumps, and wheelies.

DANGER: Lack of bicycle maintenance presents the risk of accident and injury.

Check the bike before every ride, including but not limited to brake function, tire wearing and PSI, bolt and nut condition, steering, and spokes tension.

If you hear any abnormal noise while riding, stop immediately and check the entire bike.

CAUTION: Ensure full compliance with local law.

Risk of fines and confiscation!

Before riding the bike, make sure the bike aligns with the standards of your local law.

Reflectors are not a substitute for required lights. Riding at dawn, at dusk, at night or at other times of poor visibility without an adequate bicycle lighting system and without reflectors is dangerous and may result in serious injury or death.

If your bicycle does not fit properly, you may lose control and fall.

Bolts that are too tight can stretch and deform.

Do not expose your battery to high temperatures.

Riding with improperly adjusted brakes or worn brake pads is dangerous and can result in serious injury or death.

Never inflate a tire beyond the maximum pressure marked on the tire's sidewall or the wheel rim. If the maximum pressure rating for the wheel rim is lower than the maximum pressure shown on the tire, always use the lower rating. Exceeding the recommended maximum pressure may blow the tire off the rim or damage the wheel rim, which could cause damage to the bike and injury to the rider and bystanders. The best and safest way to inflate a bicycle tire to the correct pressure is with a bicycle pump which has a built-in pressure gauge.

Applying brakes too hard or too suddenly can lock up a wheel, which could cause you to lose control and fall. Sudden or excessive application of the front brake may pitch the rider over the handlebars, which may result in serious injury or death.

Stop the charging procedure immediately if you notice a strange smell or smoke.

• SHARP is not responsible for injury/death caused by improper use.
• Sharp is not responsible if you do not comply with local regulations and restrictions.
• The warranty does not cover damages caused by improper use of the device, especially in case use for non-domestic purposes and alterations and / or adaptations necessary for countries or regions, for which it was not originally designed.

- Always abide by local traffic rules and national laws and regulations while using your e-bike.

- Always adhere to the local speed limit. DO NOT exceed the speed limit for your e-bike.

• Always wear safety protection equipment when in use.

• Always wear a safety helmet when riding your e-bike.

- Always ride with both hands holding the handles, never ride with one hand.

- Do not ride in bad weather.

• Do not use this e-bike to perform stunts or dangerous maneuvers. It is a bike designed for domestic use.
• Do not carry people or items such as bags.
• Ride slowly in crowded places.
• Ensure that all screws and fasteners are tight and normal before use.
• Make sure that the folding shaft enters the slot when unfolding the e-bike.
• Do not ride on uneven roads, water, oil or ice.
• Do not weave through traffic or make moves which are unpredictable to other people.
• Do not ride the e-bike if outside of the country's age limits.
• Do not ride the e-bike over the country's legal speed limit for e-bikes.
• Do not use the e-bike if it is damaged.
• Do not use the e-bike if the battery emits a peculiar smell and/or heats up.
• Do not use the e-bike if liquid leaks out of it, avoid contact and place out of the reach of children.
• Before use, ensure that the e-bike is not damaged. Do not ride if there is any damage.
• Ensure that you read all of this User Manual before using the e-bike.
• Learn how to ride your e-bike before using it in a public space.
• This e-bike can be identified by the model and serial number located on the rating plate.
• Propulsion is via an electric motor located in the driving wheel.
• Only one person may ride on the e-bike.
• Do not modify this e-bike in any way.
• Do not use any parts or accessories unless recommended or approved by SHARP.
• Ride the e-bike on level surfaces. Do not exceed the specified incline.
• Excessive use will reduce the lifetime of this e-bike.
• Caution, brakes and associated parts may become hot during use. Do not touch after use.

Battery and Charger Warnings

• Do not power on the e-bike while charging. After the battery is fully charged, disconnect the charging cable.
• The battery indicator in the display will show the battery lifetime.
• When the battery is low, it may result in weakened electric power assistance. It is recommended that you start charging at 20-40% charge.
• Charge the battery after every use.
• If the e-bike is not used for a long time, charge it at least once a month. Note that if the battery is not charged for a long time, the battery will enter a self-protection state and will fail to charge. In this case, please contact your dealer.
• When charging, plug the charger into the charging port before plugging it into the wall socket.
• While charging, the indicator light of the charger is red; this means the charging is normal. When the indicator light turns green, charging is complete.
• Only use the original charger to charge the battery.
• The charger has an overcharge protection function. If the e-bike is 100% fully charged, the charger will automatically stop charging.
• Dispose of batteries and e-bikes in compliance with the applicable regulations in your country.

Batteries

• Do not expose batteries to high temperatures and do not place them in locations where the temperature might increase quickly, e.g., near fire or in direct sunshine.
• Do not expose batteries to excessive radiant heat, do not throw them into the fire, do not disassemble them, and do not try to recharge non-rechargeable batteries; they could leak or explode.
• Disposal of a battery into fire or mechanically crushing or cutting a battery can result in an explosion.
• Leaving a battery in an extremely high temperature surrounding environment can result in an explosion or the leakage of flammable liquid or gas.
• A battery subjected to extremely low air pressure may result in an explosion or the leakage of flammable liquid or gas.
• CAUTION: Risk of explosion or damage to equipment if incorrect type batteries are used.
• Never use different batteries together or mix new and old batteries.
• Do not use any batteries other than those specified.

Disposal of this equipment and batteries

• Do not dispose of this product or its batteries as unsorted municipal waste. Return it to a designated collection point for the recycling of WEEE in accordance with local law. By doing so, you will help to conserve resources and protect the environment.
• Most of the EU countries regulate the disposal of batteries by law. A recycling symbol appears on electrical equipment, packaging and batteries to remind users to dispose these items correctly. Users are requested to use existing return facilities for used equipment and batteries. Contact your retailer or local authorities for more information.
• The battery and battery charger contain hazardous materials. Always keep the battery and battery charger away from children, animals, or persons incapable of understanding the potential hazards.

CE statement:

• Hereby, Sharp Consumer Electronics Poland sp. z o.o. declares that this equipment is in compliance with the essential requirements and other relevant provisions of RED Directive 2014/53/EU.
• The full text of the EU Declaration of Conformity is available by following the link www.sharpconsumer.com and then entering the download section of your model and choosing "CE Statements".

www.sharpconsumer.com/contact/

www.sharpconsumer.com/support/

www.sharpconsumer.com/documents-of-conformity/

What's in the Box:

E-Bike Parts

- 1 × E-bike

Accessories Box

• 1 × Quick Start Guide
• 1 × Warranty guide
• 1 × Charger Manual
• 1 × Charger
• 2 × Pedal

Accessories Box

(Refer to 1 on page 1)

Bike Parts

(Refer to 2 on page 1)

Bike Frame Number

The bike frame number can be found stamped on the tube, as shown in the figure. It is the unique identifier for your e-bike. When your bike is stolen, it's the serial number that gives you the biggest chance of getting it back. It would be a good idea to write it somewhere or take a picture.

Assembling the E-bike

The bicycle comes assembled with turned handlebar. Turn the handlebar referring to the dedicated paragraph. The pedals are to be assembled. Refer to the dedicated paragraph. Remove the protections and position it correctly to be able to use the bicycle. To remove and reposition it, refer to the dedicated paragraph.

STEP 1: Install and adjust the handlebar

a. Turn the handlebars perpendicular to the bike. If necessary, you can adjust the angle of the handlebars. Use a hex wrench to loosen screws and adjust the handlebar, then retighten the screws. b. Use a hex wrench to loosen the angle adjustment screw at the bottom of the stem. Adjust the stem to a suitable angle and retighten the screw.

CAUTION: Be sure to carefully fasten all locks before riding the bicycle.

STEP 2: Install the pedals

Use the 15 mm wrench to mount the pedals, as shown in the figure.

NOTES:

Pedal thread must be lubricated before being assembled. Check the end cap on both pedals to identify the left pedal and right pedal. Please note that the right pedal will tighten clockwise, while the left pedal will tighten anticlockwise. Make sure the torque is about 35 N·m.

STEP 3: Saddle height adjustment and tightening

Adjust the saddle

The correct adjustment of the saddle is important for the position of the body while pedalling and allows you to obtain the best performance with less stress on the joints.

Before use, ride the bicycle and adjust the height and angle of the saddle.

Height

The height of the saddle must be adjusted according to the length of the legs. The height is correct if, while sitting, you reach the pedal placed in the lowest position with the heel. The leg must be completely straight. Adjust the height according to these indications.

Open the closing lever and adjust the height of the saddle. After the adjustment is done, tighten the screw or clip locking the support.

NOTES:

In the height adjustment, in any case respect the STOP MARK on the seat post. The notch must always be inserted in the frame tube.

Angle

In case you want to keep the saddle not completely horizontal but with the "nose" slightly raised, you must loosen the locking placed under the saddle and adjust the angle. Re-tighten the lock so as not to move the saddle. Changes in the position of the saddle, even if small, can affect comfort while pedalling. It is recommended, each time you want to make an adjustment, to make only one change at a time and gradually until you find the most comfortable and correct position.

On the seat post there is the notch with stop limit. Make sure that the clamp nuts that regulate the position of the saddle are well locked.

How to use the E-bike

Fully charge the battery before first use.

Check tire pressure regularly for best performance.

How to charge

a. Open the rubber cap and plug the charger into the e-bike charge port. Make sure that the charger port is in the given direction. b. Plug the charger into the mains wall socket. c. When connected to the battery charger, the battery will start to charge and the charge indicator on the charger will turn red. d. After the charging is complete, the charge indicator will turn green. Remove the battery charger when fully charged. e. Close the rubber cap after charging.

The Assisted Pedalling

This electric bicycle is equipped with an "assisted pedalling system", consisting of a motor, a battery and a speed sensor.

It is important to know that when the system is on, the engine undertakes to supply energy only while you are pedalling. When you stop pedalling, the motor switches off and the electrical assistance for pedalling is missing. In all pedal-assisted bicycles the engine switches off and the electrical assistance stops when the maximum speed allowed for electric bicycles of 25 km/h is reached.

When the speed drops below this value, the electrical assistance starts again until you stop pedalling.

Switch on e-bike by long press ⏻ button on the display to activate.

Display functions:

1. "ON/OFF" power button – Turns the bicycle on and off
2. "F-E" LEDs – Indicate the immediate battery capacity.
3. "+/-" button – Selects pedal assistance

Level 1

Level 2

Level 3

Level 4

Level 5

The pedal assistance system is on by pressing the "ON/OFF" button. The assistance level is reset to "1", the lowest.

To change it: start pedalling and stabilize your speed; press the "+ / - " buttons to choose the required assistance.

Walk Assist mode:

Pressing and holding the "-" button for 3 seconds activates Walk-Assist Mode.

Change gears

Use the twist grip on the right side of the handlebars to operate the rear derailleur. A gear engaged indicator, gear selected, is visible next to the rotating handle.

To operate the derailleur with a twist grip, follow these steps:

a. Press the pedals forward. b. Turn the ring (1) by hand clockwise to shift to a smaller sprocket, where the pedaling effort will be greater. c. Turn the gear shift ring by hand counterclockwise to move to a larger gear, where the pedaling effort will be less.

Light operation

Lighting is one of the basic elements of bicycle user safety and it must be installed. If you intend on riding in low visibility conditions, make sure that the lighting works properly.

The bike is equipped with front and rear lights powered by AAA batteries. To turn them on, press the button on the light.

Batteries are a product deemed to be dangerous, after use should be discarded in a container assigned to it.

Battery & Charger maintenance

LITHIUM BATTERY

At the end of each use of the bicycle or if the battery is flat, recharge the battery.

After prolonged use the battery capacity will slowly decrease.

The average life of the battery depends on personal use and storage conditions. Even with proper maintenance, rechargeable batteries are not eternal. On average, a lithium battery remains active for about 500 charging cycles. It should be considered, however, that with each recharge the "capacity" of the battery drops proportionally. Even partial recharges (for example 1H recharge) are to be considered, for the purpose of the number of possible cycles, as a complete recharge. Periodically fully discharge the battery and recharge it.

If the bicycle is not used for a long period, keep the battery recharged at least once every two months, leaving it to charge for about 4 hours. In this case, do not pay attention to the battery charger lights.

When the battery is completely discharged it must be immediately recharged. Do not leave the battery discharged unused but immediately proceed with a recharge cycle. In this case, provide for a longer charging cycle, of about 6 hours to allow complete activation of the battery.

It is recommended to use the bicycle once or twice a year until the battery is completely discharged. Then fully charge it. This process has a beneficial effect on battery life.

Battery capacity on the display

When you turn on the bicycle engine and start pedalling, the battery icon on the display indicates the instantaneous charge measured and not the actual charge availability.

In case of uphill routes, when the engine is more stressed, the indicator may show a reduced residual charge (the number of LEDs lit on the display decreases). When the motor is stopped, in case of stop or advance by inertia (for example downhill) the indicator may show a higher available charge (in the absence of load on the engine the battery voltage increases).

The best time, therefore, to achieve the amount of residual charge is when reaching a constant speed and on a flat and straight path after stabilizing the work of the battery.

Battery charging

Recharge the battery without removing it from the frame.

At the end of each use of the bicycle, we do consider it worthwhile to always recharge the battery. Keeping the battery charged at all times extends its life.

It is compulsory to use the battery charger supplied and follow the instructions on it. Do not use battery chargers not approved by SHARP. They may damage the battery and limit its life. By using personal accessories, not supplied with the bicycle, the legal guarantee will automatically expire.

Before charging the battery, carefully read the following instructions and follow them during the process.

• Use only the supplied battery charger.
• Keep both the battery charger and the battery away from children and pets
• The charging operation must be carried out in a spacious, cool and dry place; away from direct heat sources and humidity.
• If the charging operation takes place with the battery housed in the bicycle, make sure that it is stable on the stand and turned off.
• It is normal for the battery charger to heat up during charging.
• Do not cover the battery charger.
• Keep the plugs always clean and dry.
• Do not get the battery charger wet.
• Do not use the battery charger and/or the battery if they are damaged.
• Always connect the battery charger to the battery first and then to the power socket.
• Do not carry out the charging process in direct sunlight.
• Do not use the battery charger for other purposes or for other devices. Voltage dips during charging cycles may damage the battery. Voltage drops during charging cycles could damage the battery.

Do not leave the battery connected to the charger for more than 8 hours. If the temperature of the battery rises too high, an unpleasant smell will be

felt: stop charging immediately and contact the Service Centre.

Battery FAQs

Is it normal for the battery to get warm during charging?

Yes, it is normal for the battery to be warm during the charging process.

Battery charger maintenance

Follow the following maintenance instructions for the battery charger:

• When the battery is fully charged, first disconnect the cable from the socket and then the battery power cable.
• Store the battery charger in a dry and clean place.
• The battery charger requires no maintenance. Any opening or tampering is prohibited.

If you suspect that the battery charger is damaged, contact the service centre.

If the cable is damaged, contact the service centre to replace it.

- If the temperature of the battery charger rises too high (over 65°C), an unpleasant smell will be felt: stop charging immediately and contact the Service Centre.

Maintenance and cleaning

Technological advances have made the E-Bike and its components more complex than in the past and the pace of innovation is increasing. With this continuous evolution, it is essential, for any mechanical and / or electrical repair and / or maintenance, to contact an authorized service centre. For routine maintenance and cleaning, follow the instructions below.

Inspection and Maintenance

For your safety and to ensure long life of your bicycle, it is recommended to inspect it regularly to understand the state of the mechanical part and, if necessary, request the assistance of a technician.

Maintaining good mechanical and electrical parts is fundamental for your safety during use. Periodically check the wiring and electrical connectors to make sure they are not damaged.

Bicycle part	Always check before use	Peri-odically check	Clean and lubruicate	Adjust and Tighten	Repair if necessary
Tire pressure √√
Tire conditions √√
Brake calibration √	√
Handlebar lock √√
Display √
Saddle lock √√
Brake pads √√
Brake cable tension		√√√
Spokes tension √√
Wheel centering √	√
Hubs		√√√
Chain lubrication		√√
Rear deraillerur calibration		√√√
Reflectors		√√√√
Battery and battery charger		√			√
Steering		√√√
B,B.		√√√
Screws, nuts, bolts, locks		√√√

Components subject to normal wear and tear (e.g., tires, chain, brakes) are not covered by the warranty.

The basic maintenance of the bicycle can and must be carried out directly by the owner; does not require special tools or specific technical knowledge beyond what is explained in this manual.

Here are some examples of interventions that you can perform yourself. All other inspection, maintenance and repair services must be carried out in a specialized centre by a qualified technician. Always contact the service centre for any doubts or uncertainties.

Adjust the brakes

The bicycle is equipped with MECHANICAL DISC BRAKES

The disc brake pads require minimal wear before achieving optimum braking. In addition, the discs overheat when they are in action, do not touch them after they have just stopped. If one of the two braking systems breaks, immediately repair it, as one brake is not sufficient to guarantee safe braking.

It is recommended to carefully check the pads, the sheaths and the tension cables and their lubrication. If you notice frayed or elongated spirals, curved ends, rust or wear, replace the damaged parts promptly. To replace the pads, loosen the retaining bolt until the pad is out and replace it. Be sure that the brake pads are firmly fixed (tightening 5/8 Nm). In case of doubts or perception of any anomaly during use, have the bicycle checked by mechanic.

Adjust the gearbox

If the chain has difficulty climbing on the large rear chainring (shifter on the handlebar turned to maximum), unscrew screw B slightly, avoiding that the chain goes beyond the last chainring.

If the chain descends with difficulty on the small rear chainring, slightly unscrew screw A to align the derailleur unit on the small chainring.

Bolts and nuts tightening

During use, due to vibrations, some screws may become loose. We advise you to periodically check the tightness of the screws. Replace any damaged or lost parts immediately. The following is a table of tightening torques to be applied for the assembly of different types of components. For each component, the "minimum-maximum" interval at which those components are generally kept is reported. The table is purely indicative,

because we repeat that numerous variables contribute to affecting the precise degree of torque to be applied to the various screws, such as the material used for the screw and / or the type of thread, the sections and the thicknesses of the material on which you act and of course the material of the parts to be interfaced.

The tightening torques are expressed in Newton-meters; remember that to correctly carry out this operation, a torque wrench is required, which detaches when the desired torque is reached.

Front hub nut 20 - 27 Nm
Rear hub nut 27 - 33 Nm
Saddle clamp 7 -22 Nm
Brake 10 Nm
Brake pad 8 Nm
Brake cable 5 Nm
Rear derailleur cables 5 – 6 Nm
Seat post clamp 10 - 14 Nm
Stem nut and screw 18 - 20 Nm
Derailleur on the dropout 12 – 15 Nm
Front derailleur nut 5 - 7 Nm
Disc brake caliper nut 6 - 8 Nm
Stem on the fork 5 - 8 Nm
Stem on the handlebar 5 - 8 Nm
Shifters on the handlebar 10 Nm
B.B. chainwheel and crank 32 – 50 Nm
BSA B.B. parts	70 Nm
Pedals	34 - 40 Nm

Running-in period

Your bicycle will be more efficient and will remain in optimal conditions for a long time with a break-in period before continuous and intensive use. Brake or gear cables, spokes and other mechanical parts may become loose in the very first period of use and a change to the service centre may be required for final adjustment.

We suggest after 30/35 hours of use and in any case after the first 30 days, to have the electric bicycle checked in a service centre.

In any case, for any problem or doubt that you cannot solve on your own, always contact the specialized technical assistance centre and do not use the bicycle in the event of real or presumed anomalies.

We recommend to check the mechanics before each use.

After each long or difficult ride on unpaved terrain, in case of exposure to water or sand and in any case every 150 km.

• Clean the bicycle.
• Lubricate the chain, the freewheel, the gearbox and then remove the excess oil. You can ask your trusted technician for advice on the best lubricants on the market and the frequency of maintenance.
• Apply the front brake and move the bicycle back and forth and make sure everything is in order. If you hear a dull noise with every movement, there are likely to be problems with the steering: contact the service centre.
• Lift the front wheel off the ground and turn it to the right and left and make sure that the steering is soft. If the steering turns stiff, there are likely to be problems with the steering: contact the service centre.
• Make sure that nuts, bolts, locks and all mechanical and fixing components are closed and not worn and / or damaged.

The bicycle and its mechanical components are subject to wear. The materials of which they are composed have different life cycles. IT IS RECOMMENDED TO CHECK THE BIKE PERIODICALLY OR AT LEAST ONCE A YEAR TO EVALUATE THE CORRECT FUNCTIONALITY AND THE STATE OF WEAR OF THE COMPONENTS AND REPLACE IT IF NECESSARY.

Flat tire

Do not use the bicycle in the event of a flat or partially flat tire. Carry it by hand.

If a tire punctures, release the wheel from the hub to remove it and deflate the tire. Remove the tire with the aid of a tire lever to remove it from the rim. Remove the perforated inner tube and replace it. Inflate the chamber slightly and reposition the tire on the rim above the chamber. Be careful not to pinch the new inner tube between the rim and the tire. Turn the wheel to make sure that the whole tire is correctly positioned on the rim and that the chamber is completely inside it. Inflate slowly to the recommended pressure, checking the position of the tire on the rim. Reposition the wheel. In case of difficulty, contact the service centre which will replace them.

We recommend that you use only a tire lever for this operation. Otherwise, using a screwdriver or any other tool, you risk puncturing the inner tube.

Clean the bicycle

Dust the frame with a soft cloth, remove the dirt with a damp cloth and non-abrasive detergent. Do not use high pressure cleaners. Dry all parts carefully and periodically apply car wax.

Clean the plastic parts and tires with soap and water, dry carefully.

If used on wet or rainy days, carefully dry the bicycle before parking it.

Do not leave the bicycle exposed to humidity, rain, direct sun. If it is not possible to take it to the shelter, cover it with a dark waterproof sheet.

The salt is highly corrosive. If you live or use the bicycle in coastal areas, it is recommended to wash the bicycle very often to remove salt, always dry carefully and apply an anti-rust to the unpainted parts.

Periodically grease the bottom bracket, the freewheel, the chain and other parts that need it. Periodically check screws, nuts, bolts, locks to make sure they are tight.

Bicycle storage

Keep the bicycle in a dry and covered place avoiding direct exposure to sun, bad weather and salt.

If you plan not to use the bicycle for a long period, before parking it, clean it thoroughly.

Deflate the tires by half and, if possible, hang the bicycle and cover it with a preferably cotton towel. Do not use plastic sheeting.

Recharge the battery and keep it recharged once every two months to prevent it from draining completely. Make sure that the battery charger is not connected to the power supply or to the bicycle.

The recommended storage temperature for the lithium battery is between 0°C and 25°C. Avoid storing the battery in places that are too cold or too hot.

Do not expose the battery to heat sources (+35/40°C) for long periods of time.

Do not leave the battery with condensation that could damage, cause a short circuit, or corrode the battery.

Troubleshooting

Description Causes Solution
Problem on the rear derailleur	Loose and/or damaged cablesIncorrect adjustment	Calibrate or replace the cablesCalibrate the rear derailleur
Problem on the chain	Chain link looseChain link bent or brokenUnregulated gearbox	Tighten the screwsReplace the chain linkCalibrate the rear derailleur
Noises while pedalling	Chain not lubricatedBroken pedal bearingsBroken B.B. bearingsFolded crank armLoose B.B.	Lubricate the chainReplace the pedalReplace the B.B.Replace the crankSecure the B.B.
The freewheel does not turn	Freewheel pins blocked	Lubricate the freewheel or replace it ifnecessary
The brakes do not properly work	Worn brake padsWet or dirty brake padsLoose and/or damaged cablesBrake lever blockedIncorrect brake adjustment	Replace brake padsClean brake pads and rimsCalibrate or replace the cablesCalibrate the brake leverCalibrate the brakes
There is a screech when using the brake	Worn brake padsIncorrect brake adjustmentWet or dirty brake padsBrakea arms loose	Replace brake padsCalibrate the brakesClean brake pads and rimsCheck the screws of the arms and fix them correctly
There is a dull noise when using the brakes	Projection on the rimWheel not alignedIncorrect brake adjustmentBrakea arms looseLoose steering	Repair or replace the rim (ask to service)Repair the wheel (ask to service)Calibrate the brakesCheck the screws of the arms and fix them correctlyTighten the steering
Wobbly wheel	Damaged hubWheel not alignedSteering lockedWheel not correctly fixed	Replace the hubRepair the wheel (ask to service)Calibrate the steeringCheck wheel
Driving not smooth	Wheel not alignedSteering lockedBent frame or fork	Repair the wheel (ask to service)Calibrate the steeringAsk the service for repeating
Frequent punture	Ols or damaged inner tubeDamaged tireTire not suitable for the rimTire not checked after a previous punctureTire pressure too lowSpokes out of the rim	Replace the inner tubeReplace the tireReplace the tireReplace the tireCheck pressure and adjustReplace the spoke
The bicycle has reduced autonomy and/o speed	Low batteryDefective battery or end-life batteryLow tire pressureBrakes rubbing on rimsWindward path, uphill...	Charge the batteryReplace the batteryInflate tiresCalibrate brakesIt is possible that the autonomy of travel is reduced in these cases of use
It is The bicycle works but the display does not show the battery charge capacity	Loose connectorsDamaged cable / casingDamaged display	Check all connectorsCheck all cable and casingReplace the display
The display indicates the battery charge but the bicycle does not work	Defective brake inhibitorLoose motor cable connector	Check the brakes, replace the inhibitorCheck connector
The motor works with no pedalling	Defective sensorDefective/damaged controller	Replace the sensorReplace the controller

Technical specifications

Model BK-DM02
General
Nominal speed 25 km/h
Bicycle weight 25,5 kg
Mileage* approx. 45 km
Max load 100 kg
Rider height 150-190 cm
Tire/wheel size 28" 700 x 40C
Frame
	Steel frame with suspended front fork
Electronics
Motor Rear-hub motor 36V*250W
Battery 36V*7,8Ah (280Wh) Lithium cells, hidden into the frame
Battery charging cycles 600 to 700
Display Led 5 level assist
Battery charger AC 100V-240V /DC 42V	2A
Charging time 4 -5 hours
Brakes
	Mechanical Disc Brakes 160mm
Brake Levers Aluminium brake levers with cut-off system
Derailleur
	Revoshift 6 speed, Shimano Tourney TZ

NOTES:

The range of travel of the bicycle with the aid of pedal assistance may vary according to the different conditions of use and the weights to be transported. These values can be influenced by the weight of the user, the type of route (steep climbs), transport of heavy objects, tire pressure, adverse weather conditions, as well as repetitive stops and restarting of travel, thus significantly reducing the travel range.

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Quick start guide

Warranty guide

Charger manual

Battery charger

Pedaling

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What's in the box:

E-Bike parts

- 1 × E-bike

Accessory box

The assisted pedaling

The lights operation

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Battery charger

Spokes

Hex key - 6mm

Hex key - 5mm

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What's in the box:

E-bike parts

- 1 × E-bike

Accessory box

Assembling the e-bike

Light operation

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Battery charger

Pedals

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Light operation

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Battery charger

Pedals

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What's in the box:

E-Bike parts

Assembling the E-bike

Light operation

https://www.sharpconsumer.com/toetus/

Quick guide

Warranty guide

battery charger.

Pedals

Important safety instructions

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What's in the box:

E-bike parts

- 1 × E-bike

Accessory box

• 1 × Quick start guide - 1 × Warranty guide - 1 × Charger guide - 1 × Charger - 2 × Pedals

Accessory box

(Refer to page 1)

Bicycle parts

(Refer to page 2)

Bicycle frame number

Assembly of the e-bike

Use of lights

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User guide

Warranty guide

Charger instructions

Battery charger

Pedals

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What's in the box:

E-bike components

• 1 × E-bike

Accessory package

Valotoiminnot

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Opération légère

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Punjač baterije

Pedale

Korisni alati (Nisu uključeni) Ključ otvorenog kraja 15-13mm

Imbus ključ - 6mm

Imbus ključ - 5mm

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How to use the e-bike

Fully charge the battery before first use.

Pedal assist

This electric bike is equipped with a "pedal assist" system, which consists of a motor, battery, and speed sensor.

It is important to know that when the system is on, the motor only helps supply energy while you are pedaling. When you stop pedaling, the motor turns off and electric pedal assist is absent.

On all pedal-assist bikes, the motor turns off and electric assistance stops when it reaches the maximum speed of 25 km/h, which is allowed for electric bikes.

When the speed drops below that value, electric assistance starts again until you stop pedaling.

Turn on the e-bike by long-pressing the ⏻ button on the display to activate it.

Function display:

1. "ON/OFF" power button - Turns the bike on and off
2. "F-E" LEDs - Show the current battery capacity
3. "+/-" button - Selects pedal assist

Level 1

Level 2

Level 3

Level 4

Level 5

Batteries are a product considered dangerous; after use, they should be disposed of in a container designated for that purpose.

Battery and charger maintenance

LITHIUM BATTERY

At the end of each use of the bicycle or if the battery is empty, charge the battery. After prolonged use, the battery capacity will slowly decrease. The average battery life depends on personal use and storage conditions. Even with proper maintenance, rechargeable batteries are not eternal. On average, a lithium battery remains active for approximately 500 charge cycles. However, it should be taken into account that with each charge, the battery's "capacity" proportionally decreases. Even partial charges (e.g., 1 hour of charging) should be considered, for the number of possible cycles, as a full charge. Periodically fully discharge and recharge the battery.

If the bicycle is not used for a long time, keep the battery charged at least once every two months, leaving it to charge for approximately 4 hours. In that case, do not pay attention to the battery charger lights. When the battery is completely discharged, it must be recharged immediately. Do not leave the battery discharged, but immediately start the charging cycle. In that case, ensure a longer charging cycle, approximately 6 hours, to allow full activation of the battery.

It is recommended to use the bicycle once or twice a year until the battery is completely discharged. Then fully charge it. This procedure has a beneficial effect on the battery's lifespan.

Battery capacity on the display

Disc brake pads require minimal wear before achieving optimal braking. Additionally, the discs overheat while in action,

do not touch them after they have just stopped. If one of the two braking systems breaks, repair it immediately, because one brake is not enough to ensure a safe stop.

Battery charger

Pedals

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What's in the box:

E-bike parts

- 1 × E-bike

Accessories box

https://www.sharpconsumer.com/support/

Quick guide

Warranty guide

Battery charger

Pedals

Useful tools (not included) Fork wrench 15-13mm

Hex key 6mm

Hex key 5mm

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Light operation

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Battery charger

Pedals

Useful tools (not included) Open-end wrench 15-13mm

Hex wrench 6mm

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What's in the box:

Light operation

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What's in the box:

Using the lamp

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Quick start guide

Warranty guide

Charger manual

Charger

Pedals

Useful tools (not included) Open ring spanner 15-13mm

Hex key - 6mm

Hex key - 5mm

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Trap support

Light operation

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Battery charger

Pedals

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What's in the box:

Lighting

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www.sharpconsumer.com/documents-of-conformity/

Assembling the E-bike

How to use the E-bike

Light operation

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Quick start guide

Warranty guide

Charger manual

Battery charger

Pedals

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www.sharpconsumer.com/documents-of-conformity/

What's in the box:

E-bike parts

• 1 × E-bike

Accessory box

• 1 × Quick Start Guide (this document)
• 1 × Warranty Guide
• 1 × Charging Manual
• 1 × Charger
• 2 × Pedal

Accessory box

Assisted pedaling

Light operation

Sharp Consumer Electronics Poland sp. z o.o.

Ostaszewo 57B, 87-148 Łysomice, Poland

EBK/MAN/0004

www.sharpconsumer.eu

SHARP