1. Introduction
Welcome to the user manual for your new Cyrusher XF900 Electric Mountain Bike. This manual provides essential information for the safe operation, assembly, maintenance, and troubleshooting of your e-bike. Please read this manual thoroughly before your first ride to ensure proper usage and to maximize your riding experience.
2. Safety Information
Your safety is paramount. Always adhere to the following safety guidelines:
- Always wear a certified helmet when riding.
- Familiarize yourself with local traffic laws and regulations regarding electric bicycles.
- Perform a pre-ride inspection before each use, checking brakes, tires, battery, and all connections.
- Do not ride under the influence of alcohol or drugs.
- Be aware of your surroundings and ride defensively.
- Avoid riding in adverse weather conditions, such as heavy rain or snow, which can reduce traction and visibility.
- Ensure the battery is securely locked in place before riding.
- Only use the charger provided by Cyrusher for your XF900 e-bike.
3. Product Overview
The Cyrusher XF900 is a robust electric mountain bike designed for various terrains, featuring powerful components and a durable build.
Key Features:
- Motor: 750W BAFANG Brushless Geared Hub Motor, providing strong power and low noise.
- Battery: 48V 17Ah Integrated LG/Samsung Waterproof Detachable Battery, offering long range and easy charging.
- Tires: 26" x 4.0" All Terrain Fat Tires, designed for stability and grip on diverse surfaces.
- Suspension: Full Suspension system (Front and Rear) for a comfortable ride over rough terrain.
- Frame: Durable 6061 Aluminum Frame, capable of supporting up to 330 lbs payload.
- Gears: SHIMANO 7-Speed Drivetrain for versatile riding.
- Display: 3.7" LCD Smart Display for monitoring ride data.
- Brakes: Responsive Disc Brakes for reliable stopping power.
Figure 3.1: Front-side view of the Cyrusher XF900 Electric Mountain Bike, showcasing its fat tires and full suspension.
Figure 3.2: Rear-side view of the Cyrusher XF900, highlighting the rear rack and disc brake system.
Figure 3.3: Detailed diagram of the 750W BAFANG motor, illustrating its internal components and performance metrics like 28mph safe top speed and 80Nm motor torque.
Figure 3.4: Illustration of the 48V 17Ah LG/Samsung battery, showing its internal structure, charging methods (direct or removable), and features like high temperature protection and modular design.
Figure 3.5: Overview of the 26" x 4.0" fat tires, highlighting their explosion-proof design, 12-gauge stainless steel spokes, and suitability for various terrains including beach, snow, dirt, and mountain roads.
Figure 3.6: Depiction of the 6061 Aluminum Frame, showing its robust construction and the bike's adaptability to different riding environments such as dirt, mountain, beach, and snow roads.
Figure 3.7: Detailed dimensions of the Cyrusher XF900, including handlebar width, total length, wheelbase, and seat heights. Also provides recommended rider height (5'7"-6'6") and maximum load capacity (330 lbs).
4. Setup and Assembly
The Cyrusher XF900 requires some assembly upon arrival. It is recommended to have basic bicycle assembly knowledge or seek professional assistance.
Assembly Steps (General):
- Unpacking: Carefully remove all components from the packaging. Retain packaging for future transport or storage.
- Handlebar Installation: Attach the handlebar to the stem, ensuring proper alignment and tightening all bolts securely.
- Front Wheel Installation: Install the front wheel, ensuring the disc brake rotor is correctly seated in the caliper and the quick-release or axle nuts are tightened.
- Pedal Installation: Identify left (L) and right (R) pedals. Thread them into the crank arms (left pedal is reverse threaded) and tighten firmly.
- Seat Post and Saddle: Insert the seat post into the frame and adjust the saddle height to your comfort. Secure with the quick-release lever or bolt.
- Battery Installation: Insert the battery into its compartment and ensure it clicks securely into place. Use the key to lock it.
- Final Checks: Before riding, double-check all bolts, connections, tire pressure, and brake functionality.
The package includes the Electric Bike and its Charger. A multi-function bicycle repair tool and a bicycle pump are also included as accessories.
5. Operating Instructions
Operating your Cyrusher XF900 is intuitive, but understanding its features will enhance your ride.
5.1 Powering On/Off
- To power on the bike, ensure the battery is installed and locked. Press and hold the power button on the 3.7" LCD Smart Display.
- To power off, press and hold the power button again until the display turns off.
5.2 Using the LCD Smart Display
The display shows speed, battery level, pedal assist level, trip distance, and more. Use the control buttons near the display to cycle through information and adjust settings. Refer to the display's specific manual for detailed functions.
5.3 Pedal Assist System (PAS)
The XF900 features a Pedal Assist system. As you pedal, the motor provides assistance based on the selected assist level.
- Increase/Decrease Assist: Use the '+' and '-' buttons on the control panel to adjust the level of motor assistance. Higher levels provide more power.
- Throttle: The bike may also include a thumb throttle for on-demand power without pedaling. Use with caution and according to local regulations.
5.4 Shifting Gears
The SHIMANO 7-Speed drivetrain allows you to adapt to different terrains and inclines.
- Use the trigger shifter on the handlebar to change gears.
- Shift to a lower gear (larger cog on the rear) for climbing hills.
- Shift to a higher gear (smaller cog on the rear) for flat terrain and higher speeds.
- Always pedal lightly when shifting to ensure smooth transitions and prevent damage to the drivetrain.
5.5 Braking
The XF900 is equipped with reliable disc brakes.
- Apply both front and rear brakes simultaneously for effective and controlled stopping.
- Avoid sudden, hard braking, especially with the front brake, as this can lead to loss of control.
- Regularly check brake pads for wear and ensure brake levers are responsive.
5.6 Charging the Battery
The 48V 17Ah battery has a charge time of approximately 5-7 hours.
- Connect the charger to the charging port on the bike (direct charging) or remove the battery to charge it separately.
- Plug the charger into a standard wall outlet.
- The charger indicator light will typically change color when charging is complete.
- Do not overcharge the battery. Disconnect the charger once fully charged.
- Charge the battery in a well-ventilated area, away from flammable materials.
6. Maintenance
Regular maintenance ensures the longevity and optimal performance of your Cyrusher XF900.
6.1 Routine Checks (Before Each Ride)
- Tires: Check tire pressure and inspect for any cuts or punctures.
- Brakes: Ensure brake levers are firm and responsive, and brake pads are not excessively worn.
- Bolts and Fasteners: Verify that all critical bolts (wheels, handlebars, seat post, crank arms) are tight.
- Battery: Confirm the battery is securely seated and locked.
- Cables: Check for any frayed or damaged cables.
6.2 Cleaning
Clean your e-bike regularly with a damp cloth and mild soap. Avoid using high-pressure washers directly on electrical components. Dry thoroughly after cleaning.
6.3 Chain Lubrication
Lubricate the chain periodically, especially after riding in wet conditions or after cleaning. Use a bicycle-specific chain lubricant.
6.4 Battery Care
- Store the battery in a cool, dry place when not in use.
- If storing for extended periods, charge the battery to 50-70% and recharge every 1-2 months to prevent deep discharge.
- Avoid exposing the battery to extreme temperatures.
7. Troubleshooting
This section addresses common issues you might encounter with your Cyrusher XF900.
| Problem | Possible Cause | Solution |
|---|---|---|
| Bike does not power on. | Battery not charged, battery not properly installed, loose connection. | Charge battery, ensure battery is fully seated and locked, check all electrical connections. |
| Motor not assisting. | PAS level too low, brake levers engaged, motor error. | Increase PAS level, ensure brake levers are fully released, check display for error codes. |
| Gears not shifting smoothly. | Derailleur misalignment, dirty chain, worn cable. | Adjust derailleur, clean and lubricate chain, inspect and replace cables if necessary. |
| Brakes feel spongy or weak. | Air in hydraulic lines (if applicable), worn brake pads, misaligned caliper. | Bleed brakes, replace brake pads, adjust caliper alignment. |
For issues not covered here or if problems persist, please contact Cyrusher customer support.
8. Specifications
Detailed specifications for the Cyrusher XF900 Electric Mountain Bike:
| Feature | Detail |
|---|---|
| Bike Type | Electric Bike |
| Model Name | XF900 |
| Brand | Cyrusher |
| Age Range (Description) | Adult |
| Motor Wattage | 750W (7.5E+2) |
| Battery | 48V 17Ah (816 Watt Hours) |
| Wheel Size | 26 Inches (with 4.0" Fat Tires) |
| Number of Speeds | 7 |
| Suspension Type | Rear, Front, Dual (Full Suspension) |
| Brake Style | Disc |
| Frame Material | Aluminum (6061) |
| Special Feature | Fat tire, Electric |
| Included Components | Electric Bike, Charger |
| Power Source | Electric motor |
| Year | 2023 |
| Assembly Required | Yes |
| Bicycle Gear Shifter Type | Trigger |
| Bicycle Drivetrain Type | Derailleur |
| Electric Assist Type | Pedal Assist |
| Max Payload Capacity | 330 lbs (150 kg) |
| E-bike Weight | 74 lbs (34 kg) |
9. Warranty and Support
The Cyrusher XF900 comes with a Limited Warranty. For specific terms and conditions of your warranty, please refer to the documentation included with your purchase or visit the official Cyrusher website.
Optional protection plans may be available for extended coverage. For details on these plans, please consult the product listing or contact your retailer.
For technical support, parts, or service inquiries, please contact Cyrusher customer service through their official channels.
