Fatboy Bikes Owner's Manual

In Box Contents

• 1 Electric Bike
• 1 Battery
• 1 Charger
• 1 Headlight
• 1 Fenders
• 1 Set of Pedals
• 1 Set of Keys (2)
• 1 Instruction Manual
• 1 Basic Tool Kit

Bikes Covered in This Owner's Manual

Congratulations on the Purchase of Your New Fatboy Bike!

Welcome to the Fatboy family. Fatboy Bikes strives to set the standard in electric bikes for safety, innovation, and quality. The company is constantly evolving with the goal of providing superior customer service and a premium product in terms of quality and ride experience.

As a new Fatboy Bike owner, you benefit from a comprehensive warranty period on all bikes. For detailed information, please refer to the Terms and Conditions available on the Fatboy Bikes website. All users should familiarize themselves with this owner's manual before operating their electric bike. A team of technicians is available to assist with any questions. Feedback is welcome; please share any suggestions or concerns at hello@fatboybikes.com.au.

Join the Fatboy community on Instagram and Facebook to share your experiences and photos using the handle @fatboy_bikes.

Fatboy Bikes Pty Ltd | www.fatboybikes.com.au

Important Notice Before Riding

• Before using the electric bike, ensure correct safety and protective equipment is worn, including an Australian-approved helmet, enclosed shoes, and protective clothing.
• Check and adhere to the road and traffic rules within your state's legislation.
• If you are uncomfortable assembling your new bike, consult your local bike store for assistance.
• Your safety is paramount. Follow all safety and maintenance directives in this manual and the Fatboy Bikes Pty Ltd Terms and Conditions.
• Fatboy Bikes recommends that children under the age of 16 should not ride or operate Fatboy Electric Bikes.
• Ensure your Fatboy Electric Bike is well-maintained for safe riding. Check the bike for any hazards before every ride.
• If you are new to riding an electric bike, practice in an open, quiet space to build confidence before riding in high-traffic areas.
• When riding in rainy, snowy, or slippery conditions, reduce your speed and increase the distance between yourself and other vehicles.
• Fatboy Bikes prohibits illegal modifications of its electric bikes and is not responsible for any resulting losses.

Video Tutorials & Guides

• Unboxing & Assembly Video Guide: https://youtu.be/xstMzE8uqfg
• Handlebar Install Video Guide: https://youtu.be/cXtkNDEYQFE
• All Video Tutorials: www.fatboybikes.com.au/videos

Fatboy Bikes Pty Ltd | www.fatboybikes.com.au

Initial Setup and Maintenance Check Before Each Ride

1. Ensure the bike is turned off before charging. Charge the battery to full before first use. The charger light changes from red to green when fully charged. The charger only works when plugged into the battery and then switched on at the wall socket.
2. Check tyre pressure and ensure it is pumped to the specification indicated on the tyre wall. Do not exceed the maximum specified pressure.
3. Check and tighten all nuts and bolts across the bike, including: Front & Rear Wheel - Axles / Hubs / Spokes; Brake Disc Rotor Bolts Front & Rear; Brake Callipers Front & Rear; Handlebars; Forks; Crank; and general bike bolts.
4. Check that brake levers, display, buttons, and bells on the handlebars are firm. Do not over-tighten plastic components like the display, as this can cause damage.
5. Perform a brake test by holding the levers on to ensure no loss of pressure.
6. Ensure the battery is securely fastened in place using the key lock mechanism before riding.
7. Ensure the master switch on the battery is ON before powering up the bike using the ON button on the handlebars.
8. Ensure the bike chain has adequate lubricant and is free of debris.
9. Check the battery terminal contacts for damage, burn marks, foreign objects, or signs of arcing before each battery fitting.
10. Ensure the bike's load does not exceed the specified weight limit of 180kg.
11. Check weather conditions are favourable for riding and avoid adverse conditions such as rain, strong winds, or extreme temperatures above 45 degrees Celsius.
12. Avoid terrain that may cause extreme vibrations to the battery pack, as this is not a mountain bike.
13. Examine the frame and wheels of the bike for any signs of cracks, weathering, or corrosion.
14. To clean your bike, remove the battery and use a damp cloth, avoiding any electrical components. Allow the bike to dry completely before use.

WARNING

IMPROPER USE OR ASSEMBLY OF THIS ELECTRIC BIKE MAY LEAD TO SERIOUS INJURY OR DEATH. ALWAYS RIDE WITH CARE AND ATTENTION AND WEAR APPROPRIATE SAFETY EQUIPMENT.

By purchasing and operating the Fatboy electric bike, you agree to our Terms and Conditions of Service. Read the full terms at: www.fatboybikes.com.au/terms.

• Do not ride this electric bike if you are pregnant, tired, sick, or under the influence of alcohol or drugs.
• Always wear proper protective clothing, including an Australian-approved helmet, enclosed hard-sole shoes, and enclosed leather gloves.
• Only ride at speeds that permit you to safely stop without power or brakes, as the bike can lose brakes and/or power at any time due to low battery, mechanical failure, or electrical interference.
• Avoid riding on busy roads, as this is dangerous to yourself and other road users.
• The higher pedal assist levels are sensitive. Start the bike on low pedal assist for a smooth take-off and ride according to your ability.
• Do not ride this electric bike in bad or wet weather conditions, as it can be unsafe and may cause damage or loss of control. Water damage is not covered under your warranty.
• Allow pedestrians the right of way, maintain a safe distance when riding on shared paths, and be cautious of your surroundings.
• It is recommended to have your bike serviced regularly, every 12 months or 3000kms, whichever comes first, at your local bike store.
• Ensure regular tyre pressure checks and tightening of the front axle for safety.
• Always check, tighten, clean, and lubricate your bike's mechanisms to ensure safe operation. Dirt and foreign objects can impact ride quality, reduce battery performance, or cause failures.

Before using this vehicle, check applicable local laws regarding its intended use on roads and road-related areas.

WARNING: Do not dispose of this vehicle or its components in household or kerbside garbage bins. Check applicable local waste and disposal laws.

Step #1 - Installing Handlebars and Pedals

Once your bike is unboxed and on its wheels, the first items to fit are the handlebars and pedals.

Handlebars

Watch the instructional video here.

1. Remove the black rubber cap and hex socket screw from the fork steering tube before sliding on the stem and handlebars. Reinstall the hex socket screw and tension it once the bars are aligned and straight.
2. Tighten the 2 stem hex socket screws on each side of the stem until firm. Tension each screw multiple times to ensure even tension.
3. Check and tighten the 4 handlebar bolts in a diagonal series (e.g., bottom left > top right > top left > bottom right), repeating once more until completely firm. This ensures even distribution of force for the clamp.
4. Plug the screen cable into the wiring harness if required.

Pedal Installation – All Models

When installing the pedals, look for the "L" and "R" markings. "L" is for the LEFT side and "R" is for the RIGHT side.

NOTE: The left pedal is reverse-threaded, meaning it tightens in the opposite direction. Check the thread direction before fitting to avoid damage.

Step #2 - Turning Your Bike On

On the battery pack, turn the switch to the 'ON' position (Bagus models may not have a switch). To start the bike, hold down the 'POWER' button on the display for 3 seconds.

Note: Batteries left in the 'ON' position when the bike is powered down via the display will isolate after 30 minutes to conserve power. You will need to switch the isolator OFF and ON again before powering up.

Fatboy Bikes Pty Ltd | www.fatboybikes.com.au

Pedal Assist

Use the display keypad on your handlebars to set your bike's assist level. The [+] and [-] buttons increase or decrease pedal assist. Levels range from 0 (no motor assistance) to 9 (maximum motor power assist). Level 0 also deactivates the throttle.

Gears

Never engage gears when not pedaling. For starting on a hill or from a slower position, use a lower gear (gear 1 is recommended). For higher speeds, use seventh gear (gear 7).

Understanding Transmission & Gears

For climbing steep hills, decrease the Pedal Gear Level to 1 and increase the motor assist to level 9 for easier riding. This utilizes pedal power to assist the motor for maximum rear-wheel power output. For maximum speed, use Pedal Gear Level 7 and motor assist level 9. To maximize battery range, use lower motor assist levels. Always ensure your bike pedals are in operation when changing gears.

If your bike struggles to change gears or jumps between gears, it may need servicing and derailleur adjustment.

Brakes

Fatboy bikes are equipped with front and rear hydraulic disc brakes. Both brakes feature Electronic Cut Off Controllers, which deactivate the bike's motor when the brakes are engaged for enhanced safety.

To engage the front wheel brake, use the lever on the right handlebar. To engage the rear wheel brake, use the lever on the left handlebar. To avoid flipping, slipping, or injury, never use the front brake when turning or traveling downhill.

Display

The 'M' (MODE) button on your display allows you to cycle through bike status information such as ODO, Current Speed, AVG Speed, and Trip. The [+] and [-] buttons adjust the motor pedal assistance level. Holding the [-] button activates the hill start mode, providing motor assistance when starting on an incline.

Fatboy Bikes Pty Ltd | www.fatboybikes.com.au

Lights

To switch on your headlight, hold down the [+] button on the display. Brake lights at the rear are integrated into the battery and activate automatically when the brake is applied. Some Fatboy Bike displays have a light sensitivity device that automatically switches the headlight on at night. To deactivate this feature, hold the plus button or adjust in the screen settings.

Throttle

If your Fatboy Bike is equipped with a throttle, it features an on/off switch. Check local state laws for throttle legality.

Step #3 - Record Your Serial Number & Register Your Bike

Once your bike is set up and ready to go, scan your QR code from your welcome booklet and register your new Fatboy Bike for warranty. Record your bike's serial number, typically found imprinted on the handlebar stem. This number is essential for warranty registration and useful for identification in case of theft.

To register your bike, visit: https://www.fatboybikes.com.au/pages/warranty-register

Fatboy Bikes Pty Ltd | www.fatboybikes.com.au

Battery Information

Battery Safety

• Only use the supplied approved battery charger.
• Maximum charging time is 6 hours.
• Do not charge the battery in high heat, high humidity, wet, or damp areas.
• Do not submerge the battery in water.
• Avoid overcharging; unplug the battery once fully charged (charger light turns GREEN).
• If the battery emits smoke, odour, or heat, move it to a safe, non-flammable area immediately and allow it to cool before handling.
• Never submerge the battery in water or expose it to moisture.
• Never attempt to disassemble, modify, or repair the battery yourself. Seek a qualified technician.
• Check the contacts before each fitting for damage, burn marks, or foreign objects.
• Avoid charging the device on flammable materials (e.g., bed, couch, paper). Always place the charger on hard, dry surfaces.
• If the battery has been damaged, discontinue use immediately and have it inspected or disposed of safely.
• If you notice signs of battery problems (overheating, odours, leaks, discoloration, swelling), shut off the device, move it away from flammable items, and dispose of it at a certified disposal site.
• Store and charge your vehicle and batteries in a cool, dry place away from direct sunlight.
• Keep batteries away from moisture, heat, and impact.
• Contact the Fatboy Bikes technical team for any battery concerns.

Maintaining Your Battery Health

• Never use third-party chargers, as they risk overvoltage and void the warranty.
• Charge your battery when it is running low; avoid running it to empty.
• After riding, allow the battery to cool for 30 minutes before charging.
• For extended periods of non-use, charge the battery once per month to keep cells active. Store the battery at around 50-70% charge.
• Avoid excessive vibrations to prevent damage to the battery housing and contacts.
• Regularly inspect terminals and contacts for dirt, corrosion, or burn marks. Clean gently with a dry cloth if needed.
• Store the battery in a secure, dry, cool place, away from flammable materials or objects, including metals.
• Never dispose of lithium-ion batteries in the trash, as this causes pollution and fire hazards.
• For proper lithium battery disposal, visit: epa.nsw.gov.au/safe-battery-recycling

Fatboy Bikes Pty Ltd | www.fatboybikes.com.au

E-micromobility Vehicle Information for NSW

Before using this vehicle, check the applicable local laws relating to your intended use on roads, footpaths, shared paths, bicycle lanes, and bicycle paths: transport.nsw.gov.au/ebikes

Battery Safety Information

WARNING! Follow these safety instructions to reduce the risk of fire, explosion, and electric shock.

DO:

• Only use batteries and chargers supplied or recommended by the manufacturer.
• Compatible products:
• The Harlem V2: 52V Battery - HL5220, 52V Charger - DPLC177V59-M
• The Scrambler V2: 52V Battery - HL5220, 52V Charger - DPLC177V59-M
• The Bagus V2: 52V Battery - HL5220, 52V Charger - DPLC177V59-M
• Maximum charging time for this vehicle should not exceed 6 hours.
• Charge your vehicle and batteries in an open area, away from combustible and highly flammable materials like beds, sofas, and carpets.
• Store and charge your vehicle and batteries in a cool, dry place away from direct sunlight.
• Store and charge your vehicle and its batteries away from doorways.
• Allow batteries to cool before recharging or storing.
• Keep batteries away from moisture, heat, and impact.

WARNING!

Modifying or tampering with your vehicle can result in a fire, explosion, or electric shock.

DON'T:

• Modify or tamper with any component of this vehicle.
• Charge this vehicle for more than the recommended charge time.
• Leave charging batteries unattended or on charge overnight.
• Use or charge a damaged battery.
• Use or charge this vehicle if it is damaged.
• Use batteries or vehicles that are overheating or showing signs of failure (e.g., swelling, leaking, venting gas).
• Buy or use a vehicle or battery that has been altered or modified.

Learn more about lithium-ion battery safety: nsw.gov.au/lithium-ion-battery-safety

Do not attempt to repair your damaged vehicle; take it to a qualified repair person.

For further information on service and repair, contact Fatboy Bikes directly or an authorized e-bike specialist.

Fire Safety Information

WARNING! Fires involving lithium-ion batteries can occur rapidly and can be violent, involving toxic smoke and vapours, flames, and molten projectiles.

If your vehicle or battery emits sparks, smoke, or flames, evacuate the area and call Triple Zero (000). Close doors if safe to do so.

Warning signs include:

• Pungent odours
• Discolouration, blistering, bulging, or swelling of the casing
• Leaking electrolyte
• Heating up and becoming extremely hot to touch
• Abnormal popping, hissing, or crackling sounds, smoke, and fumes.

Never touch a swollen or ruptured device or battery with bare hands.

Seek urgent medical assistance if anyone has been exposed to spilled electrolyte, flying debris, smoke, vapours, or flames.

Know what to do if your device or battery is smoking or on fire: fire.nsw.gov.au/batteries/what-to-do

Battery Removal Information

Safely remove your vehicle battery for disposal using these instructions:

• Using the battery key supplied with your Fatboy Bikes, unlock the battery.
• Once unlocked, physically remove the battery by sliding it out of the terminal.

WARNING: Do not dispose of this vehicle or components in household or kerbside garbage bins. Check applicable local waste and disposal laws.

Learn how to safely dispose of your device and battery at: epa.nsw.gov.au/safe-battery-recycling

Other Important Safety Information

Safe Storage of the Vehicle and Accompanying Products

Proper precautions should be taken when storing a Fatboy e-bike and its battery to ensure safety and longevity.

Preventing Environmental Damage

• Dry and Cool Location: Store the e-bike and battery in a dry, well-ventilated area away from direct sunlight, extreme cold, or high humidity.
• Avoid Outdoor Storage: Leaving the bike outside exposes it to rain, dust, and temperature fluctuations, leading to corrosion and electrical issues.
• Use a Bike Cover: If indoor storage isn't an option, a waterproof and UV-resistant cover helps protect it from the elements.
• Battery Care: Store the battery separately in a fire-resistant, cool, and dry place, ideally between 10°C to 25°C.
• Keep Away from Flammable Materials: Ensure the battery is stored away from heat sources or combustible items to reduce fire risks.

Warnings Against Heat & Water Exposure

• Avoid Excessive Heat: Do not store the bike or battery near heaters, direct sunlight, or enclosed hot spaces (e.g., a car on a sunny day), as overheating can cause battery failure or fire hazards.
• Water Damage Risk: Prolonged exposure to water (rain, floods, high humidity) can lead to electrical malfunctions and corrosion. Never submerge the bike or battery.
• Charging Safety: Never charge the battery in damp or excessively hot environments. Use the recommended charger and avoid overcharging.
• Inspect for Damage: Regularly check for signs of rust, swelling, or leakage in the battery and connectors to ensure safe operation.

Proper storage and care help maximize the lifespan of both the Fatboy Bike and its battery, ensuring reliable performance and safety.

More Information

For further information, please contact Fatboy Bikes Pty Ltd.

Fatboy Bikes Pty Ltd
44 Meta Street
Caringbah NSW 2229
hello@fatboybikes.com.au
0485 985 941

Latest update: 30th July 2025

Fatboy Bikes Pty Ltd | www.fatboybikes.com.au