SHARP BK-RS08EB Electric Bike User Manual

June 1, 2024
Sharp

SHARP BK-RS08EB Electric Bike

Product Information

Specifications:

  • Model: BK-RS08EB, BK-RS08ES
  • Type: Electric Bike
  • Languages: EN DA DE EL ES ET FI FR HR HU IT LT LV NL PL PT SV

Product Usage Instructions

Important Safety Instructions:
CAUTION – RISK OF ELECTRIC SHOCK DO NOT OPEN
Please read and follow these safety instructions before operating the appliance.

Pay attention to the following warnings:

  • Ensure candles and open flames are kept away from the product to prevent fire.
  • Do not touch the product after use to avoid electric shock.
  • Properly dispose of the product and batteries in an environmentally friendly manner.

Assembling the E-Bike:
STEP 1: Install and adjust the handlebar

  1. Remove the rubber cap on the top of the stem.
  2. Loosen the screws on the side of the stem and the long screw.
  3. Place the handlebar in the center of the stem clamp, ensuring correct orientation.
  4. Tighten the screws in a specific sequence as shown in Figure 1-5.

Bike Frame Number:
The unique identifier for your e-bike is the bike frame number, located on the bottom bracket. It is crucial for identification and recovery in case of theft. Make sure to keep a record of it.

FAQ

  • Q: Where can I find the online manual for more detailed information?
    A: You can access the online manual by visiting the following link or scanning the QR code provided: www.sharpconsumer.com/RS08EB/#down

Trademark:
The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG,. Inc. 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:

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www.sharpconsumer.com/RS08EB/#down

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Important safety instructions

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Please, read these safety instructions and respect the following warnings before the appliance is operated:
The lightning flash with 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 fi re always keep candles and other open fl ames away from this product.

IMPORTANT: Read the following carefully and keep 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 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 handed.
  • 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 countries age limits.
  • Do not ride the e-bike over the countries 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 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.
  • During discharge, when the battery is in its final stage, there may be a drop in the power output transmitted to the motor, stop riding and recharge the battery.
  • 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 to 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 together.
  • 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. 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.

Removal of battery for disposal
The battery is hidden inside the down-tube. Both tube sides have hot melt adhesive to fix the battery and cable. To remove the battery, please remove all the screws on the bike frame and remove the down-tube.

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 download section of your model and choosing “CE Statements”.

www.sharpconsumer.com/contact/

www.sharpconsumer.comsupport/

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

What’s in the Box:
Quick Start Guide (this document)

E-Bike Parts

  • 1 × Frame and Rear Wheel
  • 1 × Front Wheel
  • 1 × Thru-axle
  • 1 × Handlebar
  • 1 × Saddle and Saddle Pipe
  • 2 × Fender
  • 1 × Kickstand Accessories Box
  • 5 × Cable Snaps
  • 1 × Charger
  • 1 × Manual
  • 3 × Allen key
  • 3 × Open End Wrench
  • 1 × Phillips Screwdriver

Accessories Box
Bike Parts
Bike Frame Number
The bike frame number can be found stamped on the bottom bracket, 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.

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Assembling the E-bike

STEP 1: Install and adjust the handlebar

  • Remove the rubber cap on the top of the stem.
  • Loosen the two screws on the side of the stem and the long screw on the top of the stem with a 5 mm Allen key, then turn the display 180 degrees, as shown in Figure 1-1 and 1-2.
  • Re-tighten the screws.
  • Put back the rubber cap on the top of the stem.

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NOTE:
Make sure the torque of the screw on the top is about 4-6 N·m.
Make sure the torque of the ones on the side is about 10-12 N·m.

  • Loosen the four screws on the handlebar clamp in a counterclockwise direction with a 5 mm Allen key, then remove the screws and front cover, as shown in Figure 1-3 and 1-4.

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  • Place the handlebar in the center of the stem clamp when the user is on the saddle and make sure it is oriented correctly. The control buttons on the left. Reinstall the front cover and tighten the screws securely, but not completely.

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  • Push the handlebars left and right to center them; rotate them slightly so that the brake levers are angled downwards. Then, gradually tighten the screws in an A-B-C-D sequence, as shown in Figure 1-5.

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NOTE: Make sure the torque of bolts ABCD is about 6-8 N·m.
STEP 2: Cable management

  • Connect the display sensor cable, as shown in Figure 2-1 and Figure 2- 2.
  • Add cable snaps to manage the cables.

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STEP 3: Install the seat

  • Loosen the bolts F and J in a counterclockwise direction with a 5 mm Allen key, insert the seat post in frame, as shown in Figure 3-1.
  • Adjust the saddle height to your proper height. Do not exceed the maximum height limit of the saddle, as shown in Figure 3-2. Then tighten bolts F and J.SHARP-BK-RS08E -Electric-Bike-\(24\) SHARP-BK-RS08E -Electric-Bike-\(25\)

NOTE: Make sure the torque of bolts F and J is about 20 N·m
STEP 4: Install the front wheel
You need to turn the e-bike upside down before installing front wheel.

  • Pull off the plastic chip from the brake caliper, as shown in Figure 4-1.
  • Use a 15 mm open-end wrench to loosen screws and in sequence, as shown in the Figure 4-2, and remove the front fork protector.
  • Place the front wheel into front fork, making sure to carefully insert the disc in between the brake calipers, as shown in Figure 4-3.
  • Insert the quick release lever from the disc side as far as you can. You may need to slightly adjust the front wheel so that the quick release lever can pass smoothly. Screw clockwise it in until it feels tight, as shown in Figure 4-4.
  • Lock the quick release lever, as shown in Figure 4-5. It is much better to put the quick release lever pointing upwards aligned with the fork arm.

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NOTES:
If there is no tension when locking the quick release lever, you will need to tighten it more.
This step is very important and related to ride safety. If you cannot complete the installation as required, please seek the help of a professional.
STEP 5: Install the front fender

  • Use a 10 mm open-end wrench to loosen the fender bolt nut on the inside of the front fork bridge, and then remove the bolt and nut.
  • After aligning the fender with the screw hole, retighten the mounting screws to affix it onto the front fork, as shown in Figure 5-1.
  • After confirming that the front fender is aligned with the screw hole, use a 5 mm Allen key to push the bolt and a 10 mm open-end wrench to retighten the nut on the other side. Don’t forget the spacers.
  • After fastening the upper bracket, use a 4 mm Allen key to remove the 2 screws at the bottom of the front fork. Then, align the legs of the front fender with the installation holes at the bottom of the front fork, as shown in Figures 5-2 and 5-3, and then re-tighten the screws to about 3-5 N·m.

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STEP 6: Install the rear fender

  • Use a 10 mm open-end wrench to loosen the fender bolt nut on the seat tube joint, and then remove the bolt and nut.
  • After aligning the fender with the screw hole, retighten the mounting screws to affix it onto the seat tube joint, as shown in Figure 6-1.
  • After confirming that the front fender is aligned with the screw hole, use a 5 mm Allen key to push the bolt and a 10 mm open-end wrench to retighten the nut on the other side to the torque of 4-6 N·m. Don’t forget the spacers.
  • After fastening the upper bracket, use a 4 mm Allen key to remove the 2 screws at the dropout. Then, align the legs of the fender with the installation holes, as shown in Figures 6-2 and 6-3, and then re-tighten the screws.

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STEP 7: Connect the Cable
Turn your bike up side down.

  • Loosen the four screws on the cover next to the bottom bracket in a counterclockwise direction with a 3 mm Allen key, then remove the screws and the cover, as shown in Figure 7-1.
  •  Connect the cable between the battery and the controller, as shown in Figure 7-2.
  • Put the cover back and re-tighten the screws.

STEP 8: Install the pedals

  • Use the 15 mm wrench to mount the pedals, as shown in Figure 8-1.

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NOTES:
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 counterclockwise.
Make sure the torque is 18 N·m.
STEP 9: Install the lights, reflector, etc.

  • Mount the front light on the handlebar, as shown in Figure 9-1.
  • Mount the tail ight on the saddle pipe, as shown in Figure 9-2.
  • Mount the front reflector and bell on the handlebar, as shown in Figure 9- 3.

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STEP 10: Install the kickstand

  • Loosen screws and washers and then remove them from the dropout, as shown in Figure 10-1. Use a 5 mm Allen key to mount the kickstand onto the dropout, and retighten the screws to the torque of 10-12 N·m.

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Pumping a bicycle tire

To pump your tires, you will need:
Bicycle pump with Presta valve compatibility or Presta valve adapter (if your pump does not have a built-in Presta valve head) not included.

How to pump a tire

  • If your pump has a dual head (fits both Presta and Schrader valves), make sure it’s set up for Presta valves. If your pump is not Presta-compatible, you’ll need a Presta valve adapter. Attach the adapter to the pump head.
  • On the bicycle, unscrew the small nut at the top of the Presta valve by turning it anti-clockwise. This allows the valve to open and allows air to flow into the tire.
  • Press down on the Presta valve to release a small amount of air. This helps ensure that the valve is not stuck and allows the pump to engage properly.
  • Press your pump onto the Presta valve as far as you can.
  • If your pump has a lever, flip it down to secure the pump head onto the Presta valve. This creates an airtight seal.
  • Begin pumping air into the tire.
  • Once you’ve reached the desired tire pressure, disconnect the pump head by releasing the lever or unscrewing it.
  • Screw the small nut at the top of the Presta valve clockwise to close it.

How to use the E-bike
Fully charge the battery before first use.

How to charge

  • Open the rubber cap and plug the charger into the e-bike charge port Figure 11-1. Make sure that the charger port is in the given direction, as shown in Figure 11-2.
  • Plug the charger into the mains wall socket.
  • When connected to the battery charger, the battery will start to charge and the charge indicator on the charger will turn red.
  • After the charging is complete, the charge indicator will turn green. Remove the battery charger when fully charged.
  • Close the rubber cap after charging.

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How to start an E-bike

ON/OFF
Press and hold the power button ON/OFF for 3 seconds to turn on the display.

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Pedal Assist Level
The Motor offers five Bike Assists Models: ECO, NORMAL, TOUR, POWER, BOOST. Short press Up or Down to switch the pedal assist level.

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Display Interface
By default the display shows real-time speed (km/h), the single mileage (km), and the Total mileage (km). Press the MODE button briefly to switch.

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Walk Assist
Pressing and holding the Down Button for 3 seconds activates Walk-Assist Mode. The e-bike will go in a speed of up to 6 km/h automatically.

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Settings Menu
Press and hold the Mode button for 2 seconds, and enter the Settings interface.

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How to set
Press the UP or Down to switch and press the Mode button to save. When done, press the Mode button to go back to main settings menu. If there is no action in one minute, it will exit the setting page automatically.

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Connect to SHARP Life APP
Press and hold the Mode button for 2 seconds, and enter the Settings interface. Select the About and scan the QR Code to download the SHARP Life APP on your phone. Then link your lovely e-bike to your phone on the APP.

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Error Code
If something is wrong with the electrical system, it will show an error code on the display. Don’t hesitate to get in touch with our service center to troubleshoot the problems. Here are definitions of the error codes.

Error code Definition
21 Abnormal current
23 Motor out of phase
24 Motor Hall signal Fault
30 Communication Problem

How to use the lights
How to charge

  • Open the rubber cap and connect the light to a power supply with the attached USB cable.
  • It finishes charging when the indicator light turns green.
  • Close the rubber cap after charging.

How to use the front light
Push the button to turn the light on. Then Push to dim the brightness. Push again to turn the light off.

How to use the tail light
Push the button to turn the light on or off.

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SHARP Life App

Add the SHARP Life app to your mobile device to start enjoying the benefits of additional functionality.

This includes:

  • Speed monitoring on your device.
  • Changing the speed/distance units between kilometers and miles. Click on “Add Device”, when the e-bike is turned on and the Bluetooth icon is flashing on the display.

Your device will scan automatically for your e-bike. Make sure that the Bluetooth function is enabled on your phone. Allow location services if requested. Once the device is found, Bluetooth pairing is complete.

NOTE:
If you want to connect to the e-bike with a new account, there are two ways:

  1. Remove device from previous account.
  2. Press and hold the button ‘i’ Mode and the button ‘-‘ at the same time for 2 second to unbind the Bluetooth of the display, and then the new account can connect with it.

To add your e-bike to the app.

https://www.sharpconsumer.com/sharp-life-app

Disassembly instructions

STEP 1: Remove the handlebar

  • Disconnect the display and assist switch cables.
  • Remove the four screws on the front cover in a counterclockwise direction with a 5 mm Allen key.
  • Remove the cover.
  • Then Remove the handlebar.

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Step 2: Remove the stem and display

  • Remove the rubber cap on the top of the stem.
  • Loosen the two screws on the side of the stem and the long screw on the top of the stem with a 5 mm Allen key.
  • Then Remove the stem and display.

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Step 3: Remove the front fork and front wheel
Remove the front fork and front wheel.

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Step 4: Remove the grip

  • Loosen the screws on the grip with a 3 mm Allen key.
  • Then remove the grip.

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Step 5. Remove the brake lever

  • Loosen the screws on the brake lever with a 5 mm Allen key.
  • Then remove the brake lever.

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Step 6. Remove the assist switch

  • Loosen the screw on the brake lever with a 5 mm Allen key.
  • Then remove the assist switch with a 2.5 mm Allen key.

Step 7. Remove the brake lever on the other side

  • Repeat step 4 and 5 on the other side of the handlebar.
  • And then remove the handlebar from the bike.

Step 8. Remove the cover next to BB

  • Turn the bike upside down.
  • Loosen the four screws on the cover next to the bottom bracket in a counterclockwise direction with a 3 mm Allen key.
  • Then Remove the cover.

Step 9. Disconnect the cables
Disconnect the cable between the battery and the motor.

Step 10. Remove the kickstand

  • Loosen the screws on the kickstand with a 5 mm Allen key.
  • Then remove the kickstand .

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Step 11. Remove the belt
Loosen the end caps on the rear hub with a 19 open-end wrench. Then remove them.

Loosen the screws on the R-gaskets with a 3 mm Allen key. Then remove them.

Loosen the screws in the dropout with a 4 mm Allen key. Then remove them.
You can remove the belt easily now.

Step 12. Remove the rear fender

  • Loosen the screws on the dropout with a 4 mm Allen key.

  • Use a 5 mm Allen key to push the bolt. Loosen the nut on the other side with a 10 mm open-end wrench.

  • Then remove the rear fender.

Step 13. Remove the cable cover, rear brake caliper and rear wheel

  • Loosen 2x Philips screws then remove cable cover.
  • Loosen the screws with a 5 mm Allen key. Then remove the rear brake caliper.
  • Then you can remove the whole rear wheel easily from the bike.

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Step 14. Remove the pedals
Loosen the pedals with a 15 mm open-end wrench. Then remove them.

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Step 15. Remove the dropout

  • Use a 4 mm Allen key to push the bolts on the chain stay. Loosen the screws on the other side with another 4 mm Allen key.
  • Loosen the screws on the seat stay with a 5 mm Allen key.
  • Then remove the dropout.

Then remove the belt.

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Step 16. Remove the chain stays and seat stays
Repeat the action. And then remove the chain stays and seat stays.

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Step 17. Remove the saddle post
Loosen the bolt on the seat-tube joint with a 5 mm Allen key. Then remove the saddle post.

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Step 18. Take the frame apart
Loosen all the bolts on the front triangle of the frame with a 5 mm Allen key.

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Remove the rubber clamp from the top tube.

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Then disconnect the cable of the battery and let it be tugged easily out of the hole later.

Take the frame apart in following sequence.

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The battery is hidden inside the downtube. Both tube sides have hot melt adhesive to fix the battery and cable.
Mission Completed!

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Tightening Torques

Part Torque Nm
Triangle Frame 20Nm
Steam Top / Side 6Nm/12Nm
Steam clamp 8Nm
Seat stay 20Nm
Chain stay 10Nm
Crank bolt 40Nm
Adjust R-gasket belet screws 6Nm
Rear whell end caps 45Nm
Service door 5Nm
Brake caliper 8Nm
Grips end cap 3Nm
Brake levers 8Nm
L/R pedals 18Nm
Fenders 5Nm

Re-assembly

SHARP-BK-RS08E -Electric-Bike-\(89\)

Lock the bolts by sequence A-B-C-D-a-b-c-d

Maintenance

Interval Inspect Service Replace
**** Weekly, 160-321km (100-200 mi) Check hardware for proper torque. Check

drivetrain for proper alignment and function (including the belt, freewheel, chainring). Check wheel trueness and for quiet wheel operation on (without spoke noise) Check condition of the frame for any damage.| Clean frame by wiping frame down with damp cloth. Use barrel adjuster(s) to tension derailleur/brake cables if needed.| Replace any components confirmed by our product support or a certified reputable bike mechanic to be damaged beyond repair or broken.
Monthly, 402-1207 km (250-750 mi)| Check brake pad alignment, brake cable tension. Check belt stretch. Check brake and shifter cables for corrosion or fraying. Check spoke tension. Check accessory mounting (rack mounting bolts, fender hardware, and alignment).| Check crankset and pedal torque. Clean brake and shift cables. True and tension wheels if any loose spokes are discovered.| Replace brake and shift cables if necessary. Replace brake pads if necessary.
Every 6 Months, 1207-2011 km (750-1250 mi)| **** Inspect drivetrain (belt, chainring, freewheel). Inspect all cables and housings.| Standard tune- up by certified, reputable bike mechanic is recommended. Grease bottom bracket.| Replace brake pads. Replace tires if necessary. Replace cables and housings if necessary.

If you use the bike under challenging conditions or ride more than 2,000 km/1,250 mi per year, shorten the inspection intervals and have an inspection carried out by bike service shop every 6 months.

Screw joints

  • Check the vehicle regularly for loose screw connections according to the maintenance schedule and tighten loose screws with a torque wrench.
  • Do not ride the bike if you find that any screw joints have loosened.
  • Have loose screw joints checked by a professional if you lack the necessary expertise and required tools.

Frame and forks

  • Check the frame and rigid fork for cracks, deformation, or discoloration.
  • If the frame or the forks is cracked, deformed, or discolored, contact a professional immediately.
  • Do not use the bike if you find any cracks, deformation, or discoloration. Saddle
  • Check whether you can twist the saddle.
  • If you can twist the saddle, tighten the seat post clamp. Observe applicable torques.
  • Check whether you can move the saddle horizontally in the direction of travel or the opposite direction.
  • If you can move the saddle, adjust the saddle clamp. Wheels
  • Check whether the front or rear wheel can move sideways and whether the wheel nuts move.
  • If the wheel nuts move, have a professional check the screw joints.
  • If the quick-release axle moves, adjust the axle.
  • If the front or rear wheel moves sideways, have a professional check the wheel.
  • Check whether there is equal distance on both sides between the front wheel and the front fork and between the rear wheel and the frame.
  • If the distances are not identical, have a professional check the front and rear wheels.
  • Lift the bike and turn the front or rear wheel. Check whether the front or rear wheel swings sideways or outwards.
  • If the front or rear wheel swings sideways or outwards, have a professional check the wheel.
  • Check the front and rear rims for cracks, deformation, or color changes at regular intervals.
  • Check whether the rim is under the inner tube and the rim tape.
  • Do not use the bike if the rim is cracked, deformed, or discolored.
  • Have a professional check whether there is any damage on the rim, materials, or aluminum.
  • Squeeze the spokes together gently with your thumb and fingers to check whether the tension is the same for all spokes.
  • If the tension varies or spokes are loose, have a professional check the spokes’ tension.

Tires

  • Check whether the tire pressure is correct according to the data on the tire side wall.
  • Check whether the tires are free of cracks and damage from foreign bodies.
  • Check whether you can clearly feel the tire tread.
  • If a tire is cracked or damaged, or the tread depth is too low, have the tire replaced by a professional.

Brake
It’s important that you learn and remember which brake lever controls which brake (front/rear) in order to ensure your safety. To check which configuration your bike is set up with, squeeze one brake lever and see if the front or rear brake engages. Now do the same with the other brake lever. Remember this configuration. While you are testing the brake configuration, make sure that your hands can comfortably reach and squeeze the levers with no issues. If you experience any issues or discomfort when operating the brakes, please reach out to us before riding. Review the brake manufacturer’s user manuals and be sure to properly maintain your brakes. It’s your responsibility to be able to recognize when your brake pads need to be replaced.

Battery
It’s essential to follow these instructions and safety tips in order to preserve the longevity of your battery’s life and ensure proper performance.

  • Fully charge the battery before each ride to ensure it is ready to go the entire trip. It will help reduce the chance of over discharging the battery.
  • If the battery becomes physically damaged or non-functional, if it has been dropped or involved in a crash, or if you notice that it is performing abnormally, please discontinue use and contact the seller immediately.
  • Store the battery in a dry, climate-controlled indoor location at a temperature between 0˚C and 40˚C.

The voltage drops when the battery is low, which may result in weakened electric power assist. It’s recommend that you start charging at 20-40% charge.

Charge| 80- 100%| 80%| 60%| 40%| 20%| 0- 20%
---|---|---|---|---|---|---
Battery Voltage/V| 42| 38| 36| 34| 32| 30

Charging your battery

  • The charger is rated for 100–240V. Be sure to check the charger, the charger cables, and the battery for damage before beginning each charge.
  • Charging takes about 3–4 hours. On rare occasions, it may take longer to fully charge the battery, particularly when the bike is new or left unused for a long time.
  • Only charge the battery with the supplied charger, as others may cause damage to the battery or increase the possibility of fire or explosion.
  • While the charger is designed to automatically stop charging once the battery is full, do not leave it plugged in for more than 12 hours.
  • Make sure your charger is isolated from liquids, dirt, and debris.

The range on one charge strongly depends on several circumstances, such as (but notlimited to):

  • Weather conditions, such as ambient temperature and wind;
  • Road conditions, such as elevation and road surface;
  • Bike conditions, such as tire pressure and maintenance level;
  • Bike usage, such as acceleration and shifting;
  • Rider and luggage weight;
  • Amount of charge and discharge cycles;
  • Age and condition of battery.

Charger notes

  • The charger should only be used indoors in a cool, dry, well-ventilated area on a flat, stable, hard surface.
  • Avoid exposing the charger to liquids, dust, debris, or metallic objects. Do not cover the charger with anything while in use.
  • Store and use the charger in a safe area away from children.
  • Charging the battery to full before each use helps to prolong its lifespan and reduces the risk of over discharge.
  • Do not use any charger other than the original charger you received with your order or a charger designed specifically for the particular bike that you purchased directly from SHARP.
  • This charger is designed for standard household AC power sockets with 110-240V 50/60 Hz input voltage, and it automatically detects and calculates the input voltage. Do not attempt to open the charger or modify the voltage input.
  • Do not yank or pull on the charging cable. When unplugging, pull on the plastic plug to carefully remove the AC/DC cable.
  • It is normal for the charger to become moderately warm during charging. If the charger is too hot to touch, or if you smell an odor or notice any other signs of overheating, stop using the charger and contact the SHARP Service Center.
  • Keep the indicator facing up when using the charger. Do not invert the charger, as this can inhibit cooling and shorten its lifespan.
  • Only use the original charger provided by SHARP or one designed for your specific bike model that is approved by SHARP. Do not use aftermarket chargers, which may cause damage, serious injury, or death.
  • Not following the battery charging information listed here may cause unnecessary damage to the charging components, battery, or charger and may result in poor battery performance or failure to work properly. Battery damage incurred this way is not covered by warranty.

Balancing your battery
When you first receive your bike, it is important to follow these steps to ensure that your battery cells are properly balanced in order to keep them as efficiently as possible.

  1. For the first initial charge upon receiving your bike (or after prolonged storage time), be sure to charge the battery for at least 4 hours before riding.
    NOTE: We recommend letting the battery charge for at least 4 hours for the first three charges to ensure that the cells balance properly.

  2. After the first three rides, you may begin routine charging procedures.

Checking the electric drive system

  • Check all cables to ensure that there is no damage.
  • Examine the display for cracks and damage. Check if it is firmly in place.
  • Check the control unit for cracks and damage. Check if it is firmly in place.
  • Check the rechargeable battery to ensure that there is no damage.
  • Check that all plug contacts are correctly in place and reconnect them if necessary.
  • Check the cable and the outer casing to confirm that there is no damage.
  • Check the motor to ensure that there is no damage.

Cleaning

  • Always turn the battery off and remove the charger from the charge port and wall socket before cleaning the battery or bicycle.
  • Use a dry or slightly damp cloth for cleaning the battery or bicycle frame. If there is dirt in or around the charge port, trying using low air pressure or a soft brush to remove it. For instructions on how to clean drivetrain components, please refer to the drivetrain manufacturer’s instructions.
  • When cleaning, make sure the charge port on the bicycle is fully closed and no water comes into contact with the electrical components. If wet, leave the charge port open to dry out completely before connecting the charger.
  • Be careful not to damage or expose electrical components to water. Do not pressure wash your battery, motor, or any other electrical components. Damaging electrical components or exposing them to water may start a fire which can result in serious injury or even death. Do not use or charge a battery you believe had water seep inside. Likewise, all connectors, including the charge port, must be completely dry and clean before using or charging the bicycle.
  • Do not use alcohol, solvents, or abrasive cleaners to clean the charger. Instead, use a dry or slightly damp cloth. Surface cleaning the bike ONLY.

Service Info
WARNING
TECHNOLOGICAL ADVANCES HAVE MADE BICYCLES AND BICYCLE COMPONENTS MORE COMPLEX, AND THE PACE OF INNOVATION IS INCREASING.
IT IS IMPOSSIBLE FOR THIS MANUAL TO PROVIDE ALL THE INFORMATION REQUIRED TO PROPERLY REPAIR AND/OR MAINTAIN YOUR BICYCLE.
To help minimize the chances of an accident and possible injury, you must have any repair or maintenance, including those not specifically described in this manual, performed by a professional. Equally important is that your individual maintenance requirements will be determined by everything from your riding style to geographic location. Consult a professional for help in determining your maintenance requirements.

WARNING
MANY BICYCLE SERVICE AND REPAIR TASKS REQUIRE SPECIAL KNOWLEDGE AND TOOLS.
Do not begin any adjustments or service on your bicycle until you have learned from a professional how to properly complete them. Improper adjustment or service may result in damage to the bicycle or in an accident which can cause serious injury or death.

If you want to learn to carry out major service and repair work on your bike, you have three options:

  1. Ask the Service Center for copies of the manufacturer’s installation and service instructions for the components on your bike or contact the component manufacturer.
  2. Ask the Service Center to recommend a book on bicycle repair.
  3. Ask the Service Center about the availability of bicycle repair courses in your area.

We recommend that you ask a professional to check the quality of your work the first time you work on something and before you ride the bike, just to make sure that you did everything correctly. Since that will require the time of a mechanic, there may be a modest charge for this service. We also recommend that you ask a professional for guidance on obtaining spare parts, such as inner tubes, light bulbs, etc., as it would be useful once you have learned how to replace such parts when they require replacement.

Troubleshooting

Symptoms Possible Causes Most Common Solutions
**** The bike does not work.
  1. Insuffcient battery power
  2. Faulty connections
  3. Improper turn on sequence
  4. Brakes are applied

|

  1. Charge the battery
  2. Clean and repair connectors
  3. Turn on bike with proper sequence
  4. Disengage brakes

Irregular acceleration and/ or reduced top speed.|

  1. Insuffcient battery power
  2. Loose or damaged throttle

|

  1. Charge or replace battery
  2. Replace throttle

The motor does not respond when the bike is powered on.

|

  1. Loose wiring
  2. Loose or damaged throttle
  3. Loose or damaged motor plug wire
  4. Damaged motor

|

  1. Repair and or reconnect
  2. Tighten or replace
  3. Secure or replace
  4. Repair or replace

**** Reduced range.|

  1. Low tire pressure
  2. Low or faulty battery
  3. Driving with too many hills, headwind, braking, and/or excessive load
  4. Battery discharged for long period of time without regular charges, aged, damaged.
  5. Brakes rubbing

|

  1. Adjust tire pressure
  2. Check connections or charge battery.
  3. Assist with pedals or adjust route.
  4. Contact Product Support if range decline persists.
  5. Adjust the brakes

**** The battery will not charge.|

  1. Charger not well connected
  2. Charger damaged
  3. Battery damaged
  4. Wiring damaged

|

  1. Adjust the connections
  2. Replace
  3. Replace
  4. Repair or replace

Wheel or motor makes strange noises.|

  1. Loose or damaged wheel spokes or rim
  2. Loose or damaged motor wiring

|

  1. Tighten, repair, or replace
  2. Reconnect or replace motor.

Service Info

Typical lifespan of wearing parts| Normal Use| Inspection| Comment
---|---|---|---
1| Disc brake / Brake pads| 5,000 km| 12 months| Rotor/Pads – min 1.5mm thickness / min 1mm thickness.
2| Gates belt drive| 30,000 km| Replace when worn out or cracked.
3| Flywheel / Crank wheel| 15,000 km| Replace when shifting is not smooth or when there is abnormal noise.
4| Tire|
5,000 km| Replace when cracked or the pattern is worn and smooth.
5| Inner tube| Replace when leaking.
6| Saddle| Replace when worn out or loose.
7| Grips, pedals| Replace when worn out or loose.
8| Rims/Spokes| Check whether the spokes are loose.
9| Side support| Replace when worn out or loose.
10| Battery| 500 recharge cycles| Recharge every 6 months if not used for a long time.
11| Motor| 15,000 km| 36 months| Replace when shifting is not smooth or when there is abnormal noise.

Warranty period

Parts Warranty Period
Frame **** 24 Months

Front fork
Stem| 12 Months
Handlebar
Saddle Tube
Bottom Bracket
Crank wheel
Rim
Pedal
Kickstand
Brakes
Belt
Hub
Tire|
6 Months
Chain
Derailleur
Battery| 12 Months
Motor| 24 Months
Controller
Charger|
12 Months
Sensor
Display

Technical specification

Model BK-RS08EB BK-RS08ES

General
Colors| Black| Silver
Size| M| M
Max Speed (EU/UK)| 25 km/h| 25 km/h
Mileage| up to 80 km| up to 80 km
Weight| 19 kg| 19 kg
Max Load| 120 kg| 120 kg
Rider height| 170-190 cm| 170-190 cm
Electronics
Motor| 36V 250W| 36V 250W
Battery| 36V 7Ah/252Wh LG Cell Lithium-Ion Downtube Battery| 36V 7Ah/252Wh LG Cell Lithium-Ion Downtube Battery
Sensor| Cadence Sensor| Cadence Sensor
Display| IP66 Waterproof TFT Color LCD Display| IP66 Waterproof TFT Color LCD Display
Charger| 100V-240V/2A Smart Charger| 100V-240V/2A Smart Charger
Charging Time| 2-3 Hours| 2-3 Hours
Frame Set
Frame| 21″ 6061 Aluminum Alloy Frame| 21″ 6061 Aluminum Alloy Frame
Front Fork| Rigid Front Fork Aluminum Alloy with Disc Mounting, Thru-Axle| Rigid Front Fork Aluminum Alloy with Disc Mounting, Thru-Axle
Wheels
Tires| 700C ×28C Kenda® Tires, Presta Valves| 700C ×28C Kenda® Tires, Presta Valves
Rims| Aluminum Alloy Double-Wall| Aluminum Alloy Double-Wall
Front Hub| 3/8 ×13G ×36H Thru-Axle| 3/8 ×13G ×36H Thru-Axle
Spokes| Stainless Steel, 13g| Stainless Steel, 13g
Brakes
Brakes| Tektro® HD-M285 Hydraulic Disc Brakes with 180mm rotors| Tektro® HD-M285 Hydraulic Disc Brakes with 180mm rotors
Brake Levers| Tektro® HD-M285| Tektro® HD-M285
Drivetrain
Belt| Gates® CDN™Carbon Belt| Gates® CDN™Carbon Belt
Chainwheel| Gates® CDX™63T| Gates® CDX™63T
Cassette| Gates® CDX™22T, Single-speed| Gates® CDX™22T, Single-speed
Crank| 170mm| 170mm
Pedals| Wellgo®| Wellgo®
Components
Saddle| Black Selle Royal® Saddle| Brown Justek® Urban Saddle
Seat post| Promax® Aluminum Alloy, Φ30.4mm with Offset| Promax® Aluminum Alloy, Φ30.4mm with Offset
Handlebar| Promax® Aluminum Alloy, 630mm| Promax® Aluminum Alloy, 630mm
Stem| Aluminum Alloy with Integrated Display, Φ31.8| Aluminum Alloy with Integrated Display, Φ31.8
Lights| 20lux, Battery Powered| 20lux, Battery Powered
Fenders| Matte Black| Silver
Frame Size| 21 inches (53 cm)
---|---
Suggested Rider Height| 5’8”–6’3″| 170 cm–190 cm
A| Seat Tube Length| 21 inches| 533 mm
B| Reach| 15.3 inches| 389 mm
C| Stand over Height| 31.9 inches| 810 mm
D| Wheelbase| 40.7 inches| 1034 mm
E| Bottom Bracket Height| 11.4 inches| 290 mm
F| Seat Height| 34.6-43.3 inches| 880-1100mm

SHARP-BK-RS08E -Electric-Bike-\(90\)

AS PART OF A POLICY OF CONTINUOUS IMPROVEMENT, WE RESERVE THE RIGHT TO ALTER DESIGN AND SPECIFICATIONS WITHOUT NOTICE.
Sharp Consumer Electronics Poland sp. z o.o. Ostaszewo 57B, 87-148 Łysomice, Poland
SDA/MAN/0319
www.sharpconsumer.eu

References

Read User Manual Online (PDF format)

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