FOSNA SR 115 Embla Electric Ladies Electric Bike User Manual

June 12, 2024
FOSNA

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FOSNA SR 115 Embla Electric Ladies Electric Bike

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Product Information

  • Model: Fosna Embla Fosna SR 115
  • Motor: 48 V / 250 W Krankmotor
  • Weight: 120 kg
  • Frame: Carbon
  • Max Speed: 25 km/h
  • Battery: 48 V 17.5 Ah – 840 Wh LG
  • Range: Up to 140 km
  • Gear System: Sram X5 9-speed
  • Brakes: Sram DB LV Hydraulic Disc Brakes (front and rear)
  • Wheel Size: 27.5 inches
  • Tires: Maxxis 27.5 x 2.4 M315P

Product Usage Instructions

  1. Assembly:
    • Remove the bike from the box.
    • Refer to the user manual for detailed instructions on how to assemble the bike.
  2. Display and Error Codes:
    • The bike is equipped with an LCD display.
    • Refer to the user manual for a list of error codes and their corresponding solutions.
    • If you encounter an error code, follow the instructions provided to troubleshoot and resolve the issue.
    • If the problem persists, contact the supplier or bring the bike to a service center for assistance.
  3. Brakes:
    • The bike is equipped with hydraulic disc brakes.
    • Ensure that the brakes are properly adjusted and functioning before riding.
    • Refer to the user manual for detailed instructions on brake maintenance and testing.
  4. Battery:
    • The bike’s battery is a 48 V 17.5 Ah – 840 Wh LG battery.
    • Refer to the user manual for detailed instructions on battery maintenance and charging.
    • Use the provided charger and follow the recommended charging instructions.
  5. Service and Maintenance:
    • It is recommended to service the bike with the supplier or authorized service centers.
    • Keep a record of performed services, including service number and date.
    • Refer to the user manual for recommended service intervals and maintenance procedures.
  6. Warranty:
    • If you need to make a warranty claim, refer to the user manual for instructions on how to proceed.
    • Contact the supplier with the serial number of the bike and battery, as well as the date of purchase.
  7. Disposal of Waste:
    • Follow local regulations for the proper disposal of electronic waste.
    • Do not dispose of the bike or its components in regular household waste.
    • Contact local authorities or recycling facilities for guidance on proper disposal methods.

Hi,

  • we are so glad that you have bought your electric bike from Fosna! It is important that you write down the serial number of your bike as it is not registered anywhere with the supplier, only on the bike and the box.
  • When servicing with the supplier, we recommend that you bring the user manual so that our bike mechanic can note the performed service, as well as for you to get a signature after the service.
  • For example: Service number YX999.
  1. Serial number bike:
  2. Serial number battery:
  3. Model:
  4. Date of purchase:
  5. Performed service:

PARTS OVERVIEW AND TECHNICAL SPECIFICATIONS

PARTS OVERVIEW

  1. LCD screen

  2. Brake lever

  3. Gear lever

  4. Holker

  5. Suspension fork

  6. Battery

  7. Motor

  8. Crank/crank arm

  9. Pedal

  10. Hydraulic disc brake (front)

  11. Hydraulic disc brake (rear)

  12. Rear derailleur

  13. Chain

  14. Package holder

  15. Front fender

  16. Rear fender

  17. Stand

  18. Front light

  19. Rear light
    Wheel :

  20. Oak

  21. Hub

  22. Rim

  23. Tires

TECHNICAL SPECIFICATIONS

Model Fosna Embla
Motor Fosna SR 115 – 48 V / 250 W
Motor type Crank motor
Maximal weight driver 120 kg
Material Carbon
Speed 25 km/h
Weight 24,3 kg
Optimal range 140 km
Brakes Scram DB LV
Gear Scram X5 9-speed
Volt battery 48 V
Battery capacity 17,5 Ah – 840 Wh
Battery type LG
Chain
Fork Air FS 27.5”
Wheel size 27,5”
Display Fosna
Tires Maxis 27.5 x 2.4” M315P

SAFETY INSTRUCTIONS

  • Read the user manual carefully for best performance and to take the best care of the product
  • Electric bicycles from Fosna are personal vehicles and are only intended to be used by one person. Never have more than one person on the bike at a time
  • The rider of the electric bicycle should adjust the seat and handlebar height according to their height to ensure a good, stable, and comfortable ride
  • Familiarize yourself with local and national regulations for the use of electric bicycles, regarding speed and alcohol limits. Also, follow laws and regulations for the use of helmets
  • and other protective gear. Wear bright clothes to be more visible in traffic
  • Make sure to inflate the tires sufficiently before use. Never ride the product with low or no air in the tires, as it is harmful to the product and can be dangerous for the rider. It
  • damages the tube, tire, and rim. Punctures are not covered by the right of complaint. Do not use the product if the tire is visibly worn
  • Take a practice run in a traffic-free area on gear 1 before going out on public roads and sidewalks

SAFETY INSTRUCTIONS

  • Keep both hands on the handlebars and both feet on the pedals when riding. This is a means of transportation, do not use it for jumping, tricks, or similar activities
  • Avoid riding under unfavorable conditions, such as slippery surfaces like ice and oil, heavy rain, strong wind, snow, puddles, or bad roads. If you are unsure, reduce your speed, assess your surroundings, and possibly walk the bike beside you
  • Do not ride over potholes and straight into or down from curbs, as it can cause harm to the rider and/or damage to the vehicle. Get off and lift the bike over the edge. Always ride on level ground and roads suitable for the product’s use
  • If the e-bike is not used for 1 month (such as during winter storage), you need to maintenance charge it at least once a month. Never let it completely run out of power and never charge it to 100% during storage (up to 80% is sufficient)
  • After riding in rainy weather, the battery, connection, and display must always be wiped dry. Then store the battery in a dry place for the next ride
  • Never use the product in a state where you are not completely sure you can drive safely. Reasons not to use the e-bike include if you have consumed alcohol, taken tranquilizers, are ill, impaired, tired, or in similar circumstances

HOW TO USE THE E-BIKE

ASSEMBLY STRAIGHT OUT OF THE BOX

  • The electric bikes are assembled in the same way as Momas electric bikes.

  • On the YouTube channel ”Momas Electrical” you will receive detailed and good instructions on how to set up the electric bike, as well as how to adjust the gears before using the bike.
    You will also receive a quick training on how the display works.

  • NOTE! Fill the tires with air BEFORE the first ride and maintain them. 3 – 4 bar

DISPLAY AND ERROR CODES

  1. Battery indicator
  2. USB-indicator
  3. Error status indication
  4. Wireless status indication
  5. Indication for headlight status; Incl. automatic headlight mode and manual
  6. Real-time speed
  7. Speed unit
  8. Mileage
  9. Assistance level

WARNING

  • Use the display with care. Do not attempt to disconnect or connect the connector while the battery is on
  • Avoid turning on the screen
  • Do not modify the system parameters for the risk of errors
  • Repair the display when error code for this is displayed

DISPLAY AND ERROR CODES

  1. Hold down the On/Off button to turn on the electric bike, the display will look like the picture to the right. It is the same procedure for turning it off.
  2. If the e-bike is left untouched for a few minutes, the display will turn off, but it will still draw power. If left for more than 30 minutes, it will automatically turn off.
  3. Press the On/Off button to switch between odometers: Odometer – Single trip distance – Single trip time – Single trip max speed- Single trip average speed – Single trip average  power – Instantaneous power – Motor power – Riding power – Remaining distance – Riding frequency.
  4. The walk mode is activated by holding down the ”walk assistance” button. If you release the button, the assistance is stopped.
  5. Press ”+” and ”-” to adjust how much assistance the motor provides.
  6. ”M” day-running light will be activated the same time as the display. Press Light button to turn on the headlight. Rear light will be turned on at the same time. It´s the same procedure to turn it off.

DISPLAY AND ERRORS

SETTINGS

  • To get to the settings, press and hold “+”- and ”-” button at the same time. Briefly press ”ON/OFF”- button in the settings menu to access the sub-options. In the last option menu, press briefly on the ”ON/OFF” button to confirm the option.
  • After selecting the “Return” option, press on the ”ON/OFF” button to return to the previous menu.
  • Press the ”ON/OFF” button in any settings menu to return directly to the main screen.

DISPLAY AND ERROR CODES

ERROR CODE FAULT SOLUTION
21 System error Restart the bike – Bring in for service if problem persist
22 Throttle failure Check throttle before the electric bike turns on – Bring

in for service if problem persist
24| Signal error in motor| Disconnect and reconnect motor wires – Bring in for service if problem persist
25| Brake failure| Check the brakes before turning on the electric bike
28| Other errors| Restart the bike / Update software / Replace motherboard
30| Communication error| Make sure that the cables for the display are in place
31| Slow on/off button| Replace display control
32| Display error| Replace display
33| Display error| Replace display
34| Slow walk assist button| Replace display control

DRIVING INSTRUCTIONS
Always inspect the vehicle before use. Check the brakes, that everything is in place, check air pressure and use safety equipment.

BEFORE USING THE E-BIKE

  • Before putting the product into use, the buyer must familiarize them self with the user manual
  • Choose a suitable place for your first rides and get to know the electric bike
  • Set up the e-bike according to the instructions shown in the user manual
  • We recommend a helmet and other protective equipment
  • You should familiarize yourself with brakes, braking distance and how the product behaves when braking before using the product in traffic/among people. Test at low speeds first and work your way up to high speed emergency braking

DRIVING

  • Press and hold the on/off button to turn on the e-bike

  • Remember to shift between gears while driving and to use the bell and lights on roads, carriageways and among other road users

  • Be aware that sudden, unforeseen obstacles may appear along the way. Use common sense with regard to speed and adapt your driving to the conditions and surface

  • The auxiliary motor works like this: When the pedals are activated, a sensor sends signals to an electronic control, which then starts the motor. The power of the auxiliary motor is adjusted in relation to the selected assistance level. You can adjust the level of assistance as needed while riding. You can put in maximum assistance when riding uphill, while you can turn off the assist motor when riding downhill. The electronic control unit automatically disconnects from the motor when you stop using
    the pedals. Likewise, the control unit disconnects the engine when your speed exceeds 25 km/h.

  • Show consideration for all traffic rules that are relevant in relation to bicycles/electric bicycles

  • These models are developed for cycling on public roads and pavements. Avoid off-road driving and rough terrain

  • It is completely normal for the engine to make a little noise while driving

BRAKES

  • Use the brake lever/brakes when braking. When the brake lever is depressed, the hydraulic brakes are activated. If the lever is too easy to push in, the brakes need to be adjusted. This can be done with us at E-Wheels or at your local bike mechanic
  • The harder you press the brake handle, the more braking force of the product. Be aware that in the event of sudden braking, the e-bike may slide forward and dangerous situations may occur
  • Avoid sudden braking if not necessary as it leads to worn tires and punctures

MAINTENANCE

SERVICE

A thorough service of the bicycle means that a bicycle mechanic adjusts, tightens and lubricates all moving parts. After that, we recommend that you carry out maintenance yourself at regular intervals, depending on how often and how far you ride. Below is a checklist for future service inspections:

  1. Inspection, which must be carried out no later than 2 months after the date of purchase. Includes the following: Adjustment, tightening and lubrication of moving parts.
  2. Service inspection which should be carried out approx. 1 – 2 times per year or after 1000 km (must be documented) includes the following: Adjustment of steering parts, crankshaft, gearbox, front axle, lubrication of external moving parts and safety check of tire depth and tire pressure (tire pressure should be 3 – 4 bar), lights (test cables or batteries), as well as a general safety check of the rest of the bike.

TIRES

  • When the tires are worn or damaged, they must be replaced before continuing to ride the e-bike. Fill with air once a week for frequent use. It is very important that the tires have the correct air pressure before use. When the tires are taken out of the box, they have about 2 bar of air pressure and will puncture if you don’t fill them with air. You should have between 3.4 – 4 bar (50 – 60 psi), but it is important to check the side of the tire for the recommended pressure. Correct air pressure provides better range, top speed, acceleration, climbing ability and driving comfort. Most importantly: It drastically reduces the risk of puncture.
  • Punctures are not covered by the right of complaint, with the exception of manufacturing defects. In the event of a puncture, due to different air pressures in the tire and the surroundings, air will seep out at the valve as this is the only opening for the air to escape through. This usually does not mean that the valve is defective. To check if the valve is defective, the hose must be removed and held under water. Then see where the air leaks out of the hose.
  • Avoid curbs, jumps, uneven weight distribution and fill up with air to avoid punctures.
  • Make it a habit to look over the e-bike, check the air pressure and see if all visible screws are properly seated. It is very important that all visible screws are properly tightened. We recommend doing this every week, regardless of how much the bike is used.

BRAKES – BRAKE MAINTENANCE AND TESTING INSTRUCTIONS

  • The brakes must be adjusted and tightened as necessary. Please contact your sales representative for guidance
  • Always check the brakes before you start using the product
  • Products with disc brakes need to have the brake pads replaced if necessary. These can be ordered from your supplier

BATTERY

  • Fosna’s bikes are equipped with Li-ion batteries. The average lifetime of the battery is around 600 cycling trips. Under normal use and with regular maintenance, the life of the battery can usually reach over 600 cycling trips
  • Before using the electric bike for the first time, it is important to charge the battery to 100%
  • Always take the battery indoors and make sure it is kept dry
  • Always try to leave at least 10% left and avoid draining the battery completely before charging it
  • Do not leave the e-bike with a completely empty battery for several hours. Please charge it as soon as possible
  • When you are going to put the electric bike away for a longer period of time, it is important that the battery percentage is at least 50% or more (max. 80%). It is extremely important to maintenance charge it at least once a month, otherwise the battery will be damaged
  • Always use the original charger that belongs to your model
  • Do not leave the e-bike in places where the temperature is colder than -5 and do not leave it in the sun. Better put it in the shade
  • Li-ion batteries must be handled with extreme care. Overcharging, damage or overheating may result in fire. Always be awake and present when the e-bike is charging, do not charge it unattended during the night
  • Do not use or charge a damaged battery unattended. Immediately follow disposal protocol and deliver the battery for proper disposal

CHARGER

CHARGING INSTRUCTIONS

  • The charger is developed for indoor use
  • Dry the battery after use before charging
  • Insert the plug from the charger into the socket (AC 110 V – 230 V)
  • Make sure the e-bike is turned off and the key removed before charging the bike
  • Open the charging port cover and insert the charging plug into the charging port
  • The chargers from Fosna have a built-in timing function for when the battery is fully charged. The lamp on the charger lights up red to indicate that charging is in progress. When the light changes from red to green, it indicates that the battery is fully charged
  • When charging the battery, the electric bicycle must be placed in a dry and ventilated room/place

COMPLAINT

WHAT DOES THE RIGHT OF COMPLAINT INCLUDE?

  • An electric bicycle is made up of parts with very different lifespans, and the time-limited complaint rights will therefore vary in length depending on which part of the bicycle is complained on. An example of this is the frame and load-bearing structure, which gives a 5-year right of complaint. Some parts in these products, such as batteries and motors, are considered wearing parts and therefore will not have a life expectancy of significantly longer than 2 years. These parts will therefore have a limited right of complaint period of 2 years.
  • In order to make a complaint, you must follow the service plan and necessary maintenance, see point 4 on Service and maintenance. Consumable parts that are worn or damaged as a result of improper use are not covered by the right of complaint. Consumable parts include light bulbs, brake pads, brake/gear cables, brake discs, chain, chain tensioner, drive, bearings, tires, gears, pedal, crank arm, ball bearing (steering wheel), etc.

WHAT IS NOT COVERED?
Damage to the product caused by:

  • Careless use, abuse, neglect, rental, impact, heat, moisture damage, improper installation with self-repair, punctures, road salt, poor maintenance or modifications to the e-bike. No external influences are covered
  • Inadequate maintenance, improper charging, improper storage, improper use, i.e. exceeding weight, height and/or age restrictions, driving on stairs, against walls or curbs, other types of extreme sports, etc.
  • Accident, crash, running over objects, racing, fire, that the e-bike has been under water, in water with high pressure, cold, earthquake, fall, oxidation or chemical corrosion. Water damage is not covered by complaints unless there is a manufacturing defect
  • Using the bike when the display does not show speed. (If the bike is used without cruise control)
  • That the product has been tampered with and is delivered without original parts
  • Errors caused by other equipment
  • Incorrect packaging or incorrect handling when returning to retailer
  • Modification – use of third party product not purchased from retailer

COMPLAINT AND SERVICE REQUESTS
We refer you to your supplier for complaints and service requests.

TIPS FOR EXTENDING THE LIFETIME OF THE E- BIKE

  1. Charge the battery fully at least once a month during seasons when the bike is not in use. If not maintained, the battery capacity can decrease drastically. This is due to irresponsible handling of the bike and is not covered by complaints.
  2. Make sure there is enough air pressure in the tires. At least 2.2 bar recommended weight.
  3. The bicycle must be kept clean and dry. Rust is not covered by complaints.
  4. The chain should be lubricated at least once per season.
  5. Crank arms and pedals should be tightened after the first ride, before 4 miles. Next, the crank arms and pedals should be tightened as needed. Worn threads and cracked axles are not covered by complaints.
  6. The customer is responsible for ensuring that adjustments are made correctly. Broken gears as a result of poor/incorrect adjustment are not covered by complaints.

SAFE WASTE DISPOSAL

  • This product must not be disposed of by incineration, landfill or together with household waste. Improper disposal of the battery in this product may cause the battery to heat up, rupture, or catch fire, causing serious injury. Substances contained in the battery constitute chemical hazards for the environment. E-
  • Wheel’s products must be delivered to a recycling center or recycling facility.
  • Local regulations and laws regarding the recycling and disposal of lithium batteries and/or products containing them vary by country, state, and local government.
  • You must check the laws and regulations corresponding to where you live to properly dispose of the battery and/or device. It is the user’s responsibility to dispose of their waste in accordance with local regulations and laws.
  • For further information on where to dispose of batteries and electronic waste, please contact your local or regional waste management office, your household waste service or your point of sale.

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