1. Important Safety Information
⚠️ Warning: Please be aware of potential fire risks and strictly adhere to the instructions provided in this manual for charging and storage of the battery. When operating the Varstrom Cola Bear 2.0 Electric Bike, always wear appropriate protective equipment and fully comply with all applicable local laws and regulations regarding electric bicycle use.
Always perform a pre-ride safety check, including brakes, tires, battery level, and all connections, to ensure safe operation.
2. Product Overview
The Varstrom Cola Bear 2.0 is a robust and versatile electric mountain bike (MTB) designed for adult riders, suitable for both challenging mountain trails and comfortable trekking. It features a powerful mid-motor, a high-capacity battery, and a full suspension system for an enhanced riding experience.

Figure 2.1: Varstrom Cola Bear 2.0 Electric Bike
Key Features:
- Powerful Mid-Motor: Equipped with a BAFANG 48V 750W mid-motor (peak 1200W) for strong assistance and climbing capability.
- Long-Range Battery: Features a 48V 20Ah (960Wh) Samsung 50GB cell lithium battery, offering extended range.
- Full Suspension System: Includes a SF19-XCM32 BOOST NLO front fork and a rear air shock absorber for superior comfort and control on varied terrain.
- Advanced Gearing: Shimano 11-speed gear system for precise and smooth shifting.
- Reliable Braking: Front and rear disc brakes ensure strong stopping power.
- Informative Display: P860ML Color LCD Display provides essential riding data.
- Durable Frame: Constructed from 6010 aluminum alloy.

Figure 2.2: Key Features Overview

Figure 2.3: Suspension and Drivetrain Components
3. Setup and Initial Use
3.1 Unpacking and Assembly
Your Varstrom Cola Bear 2.0 E-bike will arrive partially assembled. Carefully remove all packaging materials. Assembly typically involves attaching the front wheel, handlebars, pedals, and seat post. Refer to the detailed assembly instructions provided in the separate assembly guide or video (if available) for your specific model. Ensure all bolts and quick releases are securely fastened before your first ride.
3.2 Battery Installation and Initial Charge
The 48V 20Ah lithium battery is removable and waterproof. Before your first ride, fully charge the battery. Connect the provided 3A EU charger to the battery and then to a power outlet. The charging time is approximately 6-8 hours for a full charge. Ensure the battery is securely installed in the frame before riding.

Figure 3.1: Battery Specifications and Charging
4. Operating Instructions
4.1 P860ML Color LCD Display
The P860ML display provides real-time information about your ride. It shows:
- Time: Current ride duration.
- Battery: Remaining battery charge level.
- Headlight Indicator: Shows if the front light is on.
- Brake Indicator: May indicate brake activation.
- PAS Level: Current Pedal Assist System level (1-5).
- Speed: Current riding speed (Km/h).
- Power: Motor power output.
- Mileage: Trip distance.
- Mileage Mode: Odometer (ODO) or Trip distance.
- LOGO / Error: Displays brand logo or error codes.
The display also features a USB port for charging mobile devices.

Figure 4.1: P860ML Color LCD Display Interface
4.2 Pedal Assist System (PAS)
The bike features an intelligent 5-level pedal assist system. Use the controls on the handlebar to select your desired assist level. Higher levels provide more motor assistance, making pedaling easier, while lower levels conserve battery life.
4.3 Twist Throttle
For immediate power without pedaling, gently twist the throttle on the handlebar. The throttle provides power directly from the motor. Use it cautiously, especially at higher assist levels or in crowded areas.
4.4 Gear Shifting
The Shimano 11-speed gear shifter allows you to adjust your pedaling effort to match the terrain. Shift to a lower gear for climbing hills and a higher gear for flat terrain or descents. Always shift gears smoothly and avoid shifting under heavy load.
4.5 Braking
The bike is equipped with front and rear disc brakes. Apply both brakes simultaneously for effective and controlled stopping. Practice braking in a safe area to become familiar with their responsiveness.
5. Maintenance
5.1 Battery Care
- Charge the battery regularly, even if not in use, to maintain its health.
- Avoid fully discharging the battery frequently.
- Store the battery in a cool, dry place, away from direct sunlight and extreme temperatures.
- Use only the original Varstrom charger.
- The battery is waterproof, but avoid submerging it.
5.2 Tires
Regularly check tire pressure (CST 27.5/29" * 2.4"). Maintain recommended pressure for optimal performance, range, and puncture resistance. Inspect tires for wear and damage.
5.3 Brakes
Inspect brake pads for wear and replace them when necessary. Ensure brake levers are responsive and brake cables (or hydraulic lines) are in good condition. Adjust as needed for proper stopping power.
5.4 Drivetrain (Chain & Gears)
Keep the KMC e11 chain clean and lubricated for smooth operation and to prevent premature wear. Regularly check the Shimano 11-speed freewheel and rear derailleur for proper function and alignment.
5.5 Frame and Suspension
Clean the 6010 aluminum alloy frame with a damp cloth. Avoid high-pressure washing directly on electrical components. Periodically check the front fork (SF19-XCM32 BOOST NLO) and rear air shock absorber for proper function and adjust settings according to your weight and riding style.
6. Troubleshooting
- Bike not powering on: Check if the battery is fully charged and properly seated. Ensure all connections are secure.
- Motor not assisting: Verify the PAS level on the display is not set to zero. Check battery charge. Ensure there are no error codes on the display.
- Display not working: Check battery connection and ensure the display cable is securely plugged in.
- Reduced range: This can be due to low tire pressure, riding in higher assist levels, frequent use of the throttle, or riding against strong headwinds. Ensure battery is fully charged before each ride.
- Unusual noises: Stop riding immediately and inspect the bike for loose components, rubbing parts, or issues with the drivetrain or brakes.
If you encounter persistent issues not covered here, please contact Varstrom customer support or an authorized service center.
7. Specifications
| Attribute | Value |
|---|---|
| Model Number | Varstrom Cola Bear 2.0 |
| Brand Name | varstrom |
| Certification | CE |
| Rated Passenger Capacity | One Seat |
| Style | Standard Type |
| Max Speed | >50km/h (Motor rated 45-48Km/h) |
| Range per Power | > 60 km |
| Wattage | > 500w (750W nominal, 1200W peak) |
| Power Supply | Lithium Battery |
| Voltage | 48V |
| Power Source | Lithium Battery |
| Motor Type | Brushless Mid-Motor (BAFANG G340.48V750W) |
| Origin | Mainland China |
| Folded | No |
| Wheel Size | 27.5" / 29" (For 175-195CM riders) |
| Frame Material | Aluminum alloy (6010 aluminum alloy) |
| Battery | 48V20Ah Sam*sung 50GB Cell |
| Display | P860ML NEW Version |
| Charger | 48V 3A |
| Pedal Assist | Intelligent 5 level pedal assists |
| Freewheel | Shimano 11-speeds 11-50T |
| Suspension | Full suspension |
| Chainwheel | KMC e11 |
| Tire | CST 27.5/29" *2.4" |
| Front fork | SF19-XCM32 BOOST NLO |
| Spokes | 13-gauge stainless steel |
| Rear Derailleur | Shim*ano |
| Gear Shifter | Shim*ano 11-speeds |
| Rear Rack Shelf | Included |
| LED Front Light | Included |
| Throttle | Twist throttle |
| Color Options | Black-Sliver / Black-Gray |
| Package Weight | 45.0 kg |

Figure 7.1: BAFANG Mid Motor Specifications
8. Warranty & Support
Varstrom provides comprehensive warranty coverage for your Cola Bear 2.0 Electric Bike:
| Item | Warranty Period |
|---|---|
| E-Bike Frame | 24 Months |
| Motor & Battery | 12 Months |
| Parts & Accessories | 1 Month |
Under Warranty Conditions:
- If a quality problem occurs within 6 months from the delivery date, all warranty costs (repair, material, shipping) are covered by the seller.
- If a quality problem occurs between 6 and 12 months from the delivery date, the seller is responsible for repair and material costs, while the buyer covers shipping costs.
Out of Warranty Conditions:
If the warranty period has expired, after-sales service is still available. However, the buyer will be responsible for the costs associated with repairs and parts. The exact cost will depend on the specific issue.

Figure 8.1: Detailed Warranty Information
Maintenance Points:
Varstrom offers maintenance points in Poland, France, Spain, the UK, and the US. These centers provide support for warranty claims and repairs. For repairs beyond the warranty period, a nominal fee may apply. Contact customer service for the nearest service center location.

Figure 8.2: Global Service Network
9. User Tips
- Size Selection: Always refer to the provided size guide to ensure the bike is appropriate for your height. The 29'' wheel size is generally recommended for riders between 175-195cm. For shorter riders, it might be too large for comfortable and safe operation.
- Battery Longevity: To maximize battery life, avoid storing the bike with a completely empty or completely full battery for extended periods. Aim for a charge level between 40-80% for long-term storage.
- Accessory Purchases: If you need to purchase additional accessories like an extra battery or charger, contact Varstrom customer support or an authorized dealer directly to ensure compatibility and authenticity.
- Bike Weight: While the package weight is approximately 45 kg, the actual bike weight will be slightly less. Be mindful of the bike's weight when lifting or transporting it.
10. Frequently Asked Questions (FAQ)
- Q: Do I have to choose the size?
- A: Yes, selecting the correct size is crucial for comfort and safety. Please refer to the size guide provided to ensure the bike fits your height and riding style.
- Q: How much does it weigh?
- A: The package weight is approximately 45 kg. The net weight of the bike itself will be slightly less. This weight includes the frame, motor, battery, and all components.
- Q: What sizes are available?
- A: The Varstrom Cola Bear 2.0 is primarily offered with 29'' wheels, which is suitable for riders typically between 175-195cm in height.
- Q: For a woman who is 1.60 cm tall, does it fit well?
- A: For a rider who is 160 cm (approximately 5'3") tall, a 29'' wheel size might be too large for optimal comfort and control. We recommend consulting the detailed size chart or contacting customer support for personalized advice.
- Q: Can I order an extra battery for the Cola Bear electric bike?
- A: Yes, spare parts including extra batteries and chargers may be available. Please contact Varstrom customer support or an authorized dealer to inquire about purchasing compatible accessories.