Hyper Ultra 20 Inch Fat Tire Electric Bike Instruction Manual

1. Introduction

This manual provides essential instructions for the assembly, operation, and maintenance of your Hyper Ultra 20 Inch Fat Tire Electric Bike. Please read this manual thoroughly before your first ride to ensure safe and optimal performance. Retain this manual for future reference.

Figure 1: Hyper Ultra 20 Inch Fat Tire Electric Bike (Blue model shown)

2. Safety Information

Your safety is paramount. Always wear a helmet and appropriate safety gear when riding. Adhere to all local traffic laws and regulations. Regular maintenance is crucial for safe operation.

• Perform a pre-ride inspection before each use, checking brakes, tires, and battery.
• Do not ride under the influence of alcohol or drugs.
• Ensure all fasteners are securely tightened before riding.
• Do not exceed the maximum rider weight of 200 lbs.
• Familiarize yourself with the electric assist system and controls before riding in traffic.
• Avoid riding in adverse weather conditions or on slippery surfaces.

3. Package Contents

Carefully unpack the box and ensure all components are present. If any items are missing or damaged, contact customer support.

• Hyper Ultra Electric Bike (partially assembled)
• 36V / 10.4Ah Lithium-ion Battery
• Battery Charger
• Front Wheel
• Pedals (Left and Right)
• Seat with Seatpost
• Front Fender
• Headlight
• Rear Rack (pre-installed)
• Tool Kit (Allen wrenches, spanners)
• Instruction Manual (this document)

Figure 2: Exploded view of Hyper Ultra Electric Bike components.

4. Setup and Assembly

Follow these steps to assemble your Hyper Ultra Electric Bike. Refer to the provided videos for visual guidance.

4.1. Handlebar Installation

1. Insert the handlebar stem into the head tube of the frame.
2. Align the handlebar with the front wheel.
3. Tighten the stem bolts securely using the appropriate Allen wrench from the tool kit. Ensure the handlebar is firm and does not rotate.

Figure 3: Handlebar controls and gear shifter.

4.2. Front Wheel Installation

1. Carefully lift the front of the bike and align the front wheel with the fork dropouts.
2. Ensure the brake rotor slides correctly into the brake caliper.
3. Insert the axle through the wheel hub and fork dropouts.
4. Secure the wheel with the provided nuts and washers, tightening them firmly with the appropriate wrench.

Figure 4: Attaching the front wheel to the fork.

4.3. Pedal Installation

1. Identify the Left (L) and Right (R) pedals. The left pedal has a reverse thread.
2. Thread the Left pedal (L) counter-clockwise into the left crank arm.
3. Thread the Right pedal (R) clockwise into the right crank arm.
4. Tighten both pedals securely with the appropriate wrench.

Figure 5: Pedals with reflectors and crank arm attachment points.

4.4. Seat Installation

1. Insert the seatpost with the attached oversized padded seat into the seat tube of the bike frame.
2. Adjust the seat height to a comfortable riding position.
3. Secure the seatpost using the quick-release lever or bolt, ensuring it is tight enough to prevent movement during riding.

Figure 6: The oversized padded seat and its under-seat storage compartment.

4.5. Front Fender and Headlight Installation

1. Attach the front fender to the fork using the provided bolts and nuts.
2. Mount the headlight to the designated bracket on the front fork or handlebar.
3. Connect the headlight cable to the corresponding connector on the bike's wiring harness. Ensure a secure connection.

4.6. Battery Installation and Connection

1. Insert the 36V / 10.4Ah battery into its integrated flush mount compartment on the bike frame.
2. Ensure the battery is fully seated and locked into place using the provided key.
3. Connect any external battery cables if applicable.

Figure 9: Location of the charging port on the bike frame.

5. Operating Instructions

5.1. Powering On/Off and Display Functions

1. To power on the bike, ensure the battery is locked and press the ON/OFF button on the controller. The display will illuminate.
2. The display shows current speed (MPH), odometer (ODO), battery level, and assist mode.
3. Use the '+' and '-' buttons to cycle through pedal assist levels (Low, Mid, High).
4. Press the 'MODE' button to switch between different display information or activate specific functions like 6km walking mode.
5. To power off, press and hold the ON/OFF button.

Figure 8: Electric Pedal Assist Controller with ON/OFF, Mode, and Assist Level buttons.

5.2. Pedal Assist Modes and Throttle Usage

The Hyper Ultra offers three riding modes: Low, Mid, and High pedal assist. The bike also features a throttle for power on demand.

• Pedal Assist: The motor provides assistance as you pedal. Select your desired assist level using the controller buttons.
• Throttle: The twist shifter on the handlebar can be used as a throttle. Twist it to engage the motor without pedaling.

5.3. Gear Shifting

Your bike is equipped with a 7-speed Shimano twist shifter and Shimano rear derailleur. Shift gears smoothly by twisting the shifter on the right handlebar. Shift to a lower gear for climbing hills and a higher gear for flat terrain or descents.

5.4. Braking

The bike features front and rear disc brakes for reliable stopping power. Apply both brakes simultaneously for optimal control and stopping distance. Avoid sudden, hard braking, especially on loose or wet surfaces.

6. Charging the Battery

The integrated 36V / 10.4Ah battery takes approximately 4 hours to fully charge. Always use the original charger provided with your bike.

1. Ensure the bike is powered off.
2. Locate the charging port on the bike frame, typically near the battery compartment.
3. Connect the charger to the charging port.
4. Plug the charger into a standard electrical outlet. The charger indicator light will show charging status (e.g., red for charging, green for fully charged).
5. Once fully charged, disconnect the charger from the outlet first, then from the bike.

Figure 9: Location of the charging port on the bike frame.

7. Maintenance

Regular maintenance ensures the longevity and safe operation of your electric bike.

• Tires: Check tire pressure before each ride. The 20in x 4in multi-surface fat tires require specific pressure for optimal performance and comfort.
• Brakes: Regularly inspect brake pads for wear and ensure brake levers are responsive. Adjust or replace as needed.
• Chain: Keep the chain clean and lubricated to prevent rust and ensure smooth gear changes.
• Battery Care: Store the battery in a cool, dry place. If storing for extended periods, charge it to 50-70% and recharge every 2-3 months.
• Cleaning: Clean the bike with a damp cloth. Avoid using high-pressure water jets directly on electrical components.
• Fasteners: Periodically check all bolts and nuts for tightness.

8. Troubleshooting

9. Specifications

10. Warranty & Support

The Hyper Ultra Electric Bike comes with a Lifetime Warranty. For warranty claims or technical support, please contact Hyper Bicycles, Inc. customer service.

For additional support or inquiries, you may visit the Hyper Store on Amazon.