SOHAMO E-Bike Owners Manual

WARNING!

Read this entire manual before assembling or using your new electric bike. Do not modify, disassemble, or replace original electrical components. Doing so invalidates the warranty and can cause danger. Riding any bike carries risks. Proper care lowers the risk of component failure but cannot prevent it. Sudden failures can cause serious harm, injury, or death. If abnormalities are noticed, take the bike to a licensed mechanic immediately. SOHAMO Inc assumes no liability for harm, injury, or death. This manual is not a detailed service manual.

SOHAMO recommends a detailed safety check by a local bike shop mechanic before the first ride. Ensure the mechanic is experienced and reputable. The SOHAMO A3 can withstand most rain showers without damage, having an IP rating of 65 (dust tight and withstands jetting water). This does not mean it is waterproof. Avoid storing or using the bike in excessively wet conditions. Water damage is not covered by warranty.

Thank You & Contact Information

Thank you for your purchase! We hope you enjoy riding your E-Bike.

For assistance or questions, please contact SOHAMO customer service:

Email: support@sohamo.com

Website: sohamobikes.com

Phone: (763) 888-8694

Unboxing

Congratulations on your new SOHAMO E-Bike! Your bike and accessories are inside the box. Before removing packing foam, check all parts for missing items. Contact SOHAMO customer service for missing or damaged parts.

⚠️ Note: For first-time installers or riders, professional help from a certified bike mechanic is recommended.

What's in the box:

• EBike A3
• Pedals (marked 'L' and 'R')
• Charger
• Tools

Frame Number and Motor Number

Your bike has two unique serial numbers: one on the frame and one on the motor. Record these numbers as they serve as proof of warranty and are essential for law enforcement if the bike is stolen.

[Diagram showing frame serial number location and motor serial number location]

Ebike Structure Introduction

[Diagram of the SOHAMO E-Bike with numbered components. Key components include: 1. Handlebar, 2. Quick release lever, 3. Handlebar post, 4. Headlight, 5. Front fender, 6. Brake disc, 7. Folding latch, 8. Crank shaft, 9. Saddle, 10. Seatpost clamp, 11. Battery, 12. Rear rack, 13. Reflector, 14. Rear fender, 15. Motor.]

Handlebar controls include: 16. Front brake lever, 17. Headlight, 18. Gear button, 19. Horn button, 20. Rear brake lever, 21. Battery indicator, 22. Twist throttle, 23. On/Off Button.

Installation of Integral Body

Follow these steps to assemble the main body:

Step 1: Folding Stem Assembly

1. Pull the folding stem upright until the hinge mechanism closes.
2. Lift the metal stem release lever up and rotate it down, with the lever tip pointing towards the ground.
3. Pry open the stem quick-release lever by hand.
4. Slot the T-tube into the folding stem, align the handlebar correctly, and lock the quick-release lever.
5. Clockwise rotate the quick-release lever, holding the adjusting nut with one hand.
6. Close the lever to confirm the stem is securely locked.

Step 2: Seatpost and Pedal Installation

1. Open the quick release lever for the seatpost.
2. Insert the seatpost and adjust to the proper height.
3. Clockwise rotate the quick-release lever with one hand holding the adjusting nut.
4. Close the lever to check if the seatpost is securely locked.
5. Locate the battery and plug in the 3-pin black plug.
6. Install the right pedal onto the right-side crank arm by rotating it clockwise.
7. Install the left pedal by gripping it and counter-clockwise rotating the pedal axle by hand to attach it to the crank arm.

⚠️ Note: Recommended tire pressure is 20-28 PSI, with a peak pressure of 30 PSI. Adjust based on weight, terrain, and other factors.

Fold Your Bike Up

Follow these steps to fold the e-bike:

1. To fold the pedals, push the pedal body inward and lift them up.
2. Release the quick-release clamps to lower the handlebar and seat height to the lowest position.
3. Open the folding stem release lever upwards. Pull the lever to the other side to fully release the stem riser hinge mechanism.
4. Fold the folding stem up.
5. To fold the frame/crossbar, pull open the frame hinge lever.
6. Fold the frame up by pulling the lever upward vertically.

Remove the Battery

Steps to remove the battery:

1. Unplug the power cord.
2. Pull the release lever underneath the saddle.
3. The saddle can now be folded up.
4. Turn the key anti-clockwise from "ON" to "OFF", then push inward to the "UNLOCK" position.
5. The lock pin retracts into the battery once unlocked.
6. Vertically pull the ring on top of the battery to remove it from the sliding tracks.

Installed Batteries

Steps to install the battery:

1. Insert the battery into the grooves at the back of the bike, aligning with the sliding tracks.
2. Slide the battery up and down to ensure it is correctly placed.
3. Insert the key and turn it clockwise twice to lock the battery into place.
4. Once locked, the lock pin should pass through the hole.
5. Plug in the power cord.

How to Adjust the Seat Height

Adjusting the seat height:

1. Release the quick-release seat post clamp.
2. Raise or lower the seatpost as needed.
3. Clockwise rotate the quick-release lever, holding the adjusting nut.
4. Close the lever to ensure the seatpost is securely locked.

How to Adjust the Height of the Handlebar

Adjusting the handlebar height:

1. Open the quick-release lever on the stem.
2. Telescope the stem to adjust handlebar height.
3. Clockwise rotate the quick-release lever, holding the adjusting nut.
4. Close the lever to ensure the stem is securely locked.

⚠️ Note: When adjusting seat or handlebar height, do not exceed the position indicated by the dotted line on the tube.

How to Charge

SOHAMO offers two charging methods: whole bike charging and external battery charging.

Whole bike charging mode:

Plug the charging cable directly into the bike's charging port.

External charging mode:

Remove the battery and plug the charging cable into the battery's charging port.

Charging Safety:

• Use only SOHAMO-approved chargers.
• Fully charge the battery before the first ride.
• Do not leave the battery unattended while charging.
• Avoid charging in high temperatures.
• Keep flammable objects away during charging.

Battery Safety:

• Do not charge if the battery is damaged, leaking, or discolored.
• Store away from heat sources and direct sunlight.
• Do not immerse the battery in liquid.
• Follow instructions for battery removal; do not force it.
• If the battery fails to charge, stop immediately.

Caution:

Misuse during charging can lead to property damage and personal injury. Dispose of batteries according to local regulations; lithium batteries should not be placed with regular trash.

Instrument Introduction

The handlebar instruments include:

• 1. Horn button
• 2. Gear button
• 3. Headlight
• 4. Battery indicator
• 5. On/Off Button

⚠️ Caution: Avoid knocking the meter. Do not modify instrument parameters not explained in this manual, as it may affect rideability.

On/Off Meter

Turn Your Bike On:

1. Insert the battery key and turn it from "OFF" to "ON" to activate the electrical system (stand-by).
2. Press the red button on the handlebar switch to turn the bike on.

Turn Your Bike Off:

1. Press the red button on the handlebar switch.
2. Turn the battery key to the "OFF" position to power off the bike.

Operating Safety

Before riding for the first time, read and understand this manual. Learn how to activate pedal assist and throttle. Start slowly in a low pedal assist level in a safe area away from traffic and obstacles. Increase pedal assist levels only when comfortable. Ride with care at any speed. Failure to follow guidelines can lead to serious harm, injury, or death. Damage from not following instructions is not covered under warranty. Do not lean on the bike when parked with the kickstand.

Helmets and Local Laws

Always wear a helmet that fits securely. Comply with local laws regarding cycling and e-biking. If carrying children, ensure they also wear properly fitted helmets.

Pre-ride Safety Check and Inspection

Before each ride, check for loose fasteners or accessories. Ensure front and rear axles, handlebars, and handlebar stem are secure. Check tire pressure; inflate to recommended pressure on tire walls. Test brake levers to ensure brakes work properly. Adjust as needed. Ensure seatpost and handlebar stem are inserted past minimum insertion points (indicated by markings).

Riding in Wet Conditions

This e-bike can handle light rain and splashes but is not designed for heavy rain, showers, or submersion. Braking may take longer, and tires may slip when wet. Electrical components are not waterproof. The bike has an IP rating of 65. Water damage is not covered under warranty.

Riding at Night

Riding at night increases risk due to reduced visibility. Use increased caution. Ensure reflectors are installed. Turn on the front headlight and rear tail light. Wear bright colored clothing for better visibility.

Max Weight

The bike can carry a total weight of 220 lbs. The rear rack supports up to 75 lbs. A payload of 40 lbs with a rider of 180 lbs is the maximum. Exceeding weight limits may void the warranty, damage the bike, or cause injury. Total weight affects range and top speed.

Pre-Ride Safety Check

Ensure all components are securely fastened before riding to prevent harm. This includes pedals, handlebars, clamp, cranks, seat, and seatpost clamp. Check that the seat or stem cannot be twisted by hand.

To set proper seat height: Sit on the saddle facing forward, place the ball of your foot on the pedal at its lowest point. Your leg should be mostly straight with a slight bend at the knee. You should be able to pedal without overextending your leg. If your hips move side-to-side, lower the seat. Adjust the saddle so your feet can rest firmly on the ground.

To adjust seat height: Unlatch the seatpost clamp, move the seat to the desired height, and close the clamp. The open/closed positions of the clamp are indicated [visual description: open on left, closed on right].

Ensure seatpost and handlebar stem are inserted past their minimum insertion points (marked on the tubes). Failure to do so can cause undue stress and risk of sudden failure.

Check seatpost clamp and handlebar stem quick release torque. They should be tight enough to prevent twisting or falling. Tighten by turning the bolt clockwise. Refer to the manual's "Recommended Torque Values" section for specifics.

To adjust seat angle/position: Loosen nuts on the seat rails, move the seat, and retighten nuts.

Ensure all front cables and connectors are secure for proper function of the headlight, motor inhibitor switches, LCD display, and throttle. Motor inhibitor switches cut motor power when brakes are applied. If non-operational, slowing down will be delayed, potentially causing injury. Ensure installed accessories do not interfere with cables and connectors when turning handlebars.

Warranty

All bikes must be operated according to the SOHAMO owner's manual. SOHAMO warrants to the original registered purchaser that bikes will be free from defects in material and workmanship for 12 months from shipment date, when used as intended. SOHAMO is not liable for consequential damages. Warranty is nontransferrable and applies only to the original owner. Damage from not following instructions/warnings is not covered. Warranty parts ship within the continental United States.

Warranty Period for Parts (calculated from sales date):

Accessories sold on sohamo.com are not covered under warranty (except for shipping damages). Stolen bikes are not covered. Avoid severe weather conditions; exposure to extreme wet, hot, or cold may void the warranty.

Shipping damage must be reported to SOHAMO within 14 days of arrival. Replacement parts require photographic evidence and may require additional documentation. Warranty parts are sent via USPS First Class, FedEx Express, or FedEx Ground. Expedited shipping is not available.

Items like chain, tires, wheels, tubes, battery handle, brake pads, cables, housing, grips, and spokes are considered wear items and are not covered under warranty. Unauthorized alterations or repairs void the warranty.

For warranty services, contact SOHAMO online support at support@sohamo.com. Bikes/parts returned without proper documentation may face delayed service or denied warranty coverage. Return shipping costs, duties, and taxes are the claimant's responsibility.

Electric Bike Maintenance

Regular Cleaning:

Cleaning helps prevent dirt and debris from entering the motor and mechanical parts. Wash the e-bike once or twice per week. Do not use a pressurized hose; use a low-pressure stream or wet rag and dry thoroughly. This prevents water damage to electrical systems.

Lubrication:

Lubricate major moving parts like the chain. Clean the chain with a special solution before applying lubricant. Aim to do this at least once a week if used frequently.

Check the Bolts:

Periodically check for loose screws, bolts, and nuts. Tighten them slightly if loose, but do not overtighten.

Tire Pressure:

Check tire pressure with a gauge. If low or tires visibly sink, inflate to the pressure indicated on the tire walls.

Brake Pads:

Inspect brake pads every few weeks. Ensure they are effective for safe braking. Replace as needed.

Waterproofing:

The battery and motor are sealed against water damage, but not completely waterproof. Avoid jet washing or submerging the bike. The motor is a factory-sealed unit and should not be disassembled for maintenance.

Battery Care

Charge the battery at room temperature in a dry location. To prolong battery life, avoid leaving it fully charged or fully discharged for extended periods. For long-term storage (over an extended period of disuse), disconnect the battery. Top it up periodically. Maintaining a 30-60% charge is ideal for long-term storage (according to Bosch). Extreme heat and cold are detrimental to batteries. Store in a cool, dry place away from direct sunlight. In winter, especially below 0°C, charge and store at room temperature, then re-insert before riding.

Disclaimer

Riding any bicycle involves inherent risks that cannot be predicted or avoided, potentially leading to accidents, injury, or death. The rider is responsible for becoming educated and prepared for safe riding. SOHAMO strongly encourages customers to have a certified mechanic inspect the bicycle for safety. SOHAMO makes no guarantees regarding the security or adjustment of components (brakes, battery, frame, motor, etc.). Before every ride, inspect the bicycle to ensure everything is secure and adjusted properly. SOHAMO is not responsible for damage resulting from damaged, defective, or improperly secured parts, including personal property damage, injury, or death.