1. Important Safety Information
Read this manual thoroughly before operating the Jasion RetroVolt Pro Electric Bike. Failure to follow instructions and safety warnings may result in serious injury or property damage.
- Always wear a helmet and appropriate safety gear when riding.
- Ensure all components are securely fastened before each ride.
- Do not operate the bike under the influence of alcohol or drugs.
- Familiarize yourself with local laws and regulations regarding electric bikes.
- Perform regular maintenance checks as outlined in this manual.
2. Setup and Assembly
The Jasion RetroVolt Pro Electric Bike arrives approximately 90% pre-assembled. Follow these steps for final assembly.
2.1 Unboxing and Initial Inspection
Carefully remove all components from the packaging. Inspect for any damage during transit. Ensure all parts listed in the packing list are present.
2.2 Handlebar and Headlight Installation
Attach the handlebars to the stem, ensuring the stem is aligned with the direction of the front tire. Tighten the clamping screws below the stem to secure the direction. For the headlight, remove its side screws and foam washers, adjust the bracket to face outward, position the headlight, and connect its cable to the bike's power cable.
Video: This video demonstrates the unboxing and initial assembly steps, including handlebar and headlight installation.
2.3 Battery Installation and Initial Charge
The 48V/13AH or 52V/20AH removable battery is typically partially charged upon arrival. For optimal performance, fully charge the battery before the first use. Connect the charger to the battery and a power outlet. The charging time is approximately 4-5 hours.

Image: A man is shown charging the removable battery of the Jasion RetroVolt Pro electric bike, highlighting the convenience of charging anywhere.
3. Operating Instructions
3.1 Powering On and Off
To power on the bike, press and hold the power button on the LCD display. To power off, press and hold the same button. The LCD display will show real-time data.
Video: This video provides an overview of the Jasion RetroVolt Pro Electric Bike, including how to power it on and off.
3.2 Riding Modes
The Jasion RetroVolt Pro offers multiple riding modes:
- Pure Electric Mode: Uses only the motor for propulsion.
- Electric Assist Mode (PAS): Provides motor assistance while pedaling.
- Pure Pedal Mode: Operates as a traditional bicycle without motor assistance.
- Cruise Mode: Maintains a set speed without continuous throttle input.
- Walking Mode: Provides low-speed assistance for pushing the bike.

Image: This image visually explains the five distinct riding modes available on the Jasion RetroVolt Pro electric bike.
3.3 Gear Shifting
The bike features a 7-speed transmission system. Use the shifter on the handlebars to change gears according to terrain and desired pedaling effort.
3.4 Braking System
The Jasion RetroVolt Pro is equipped with a dual disc braking system for effective stopping power. Apply both front and rear brakes simultaneously for balanced and controlled deceleration. Avoid sudden, hard braking, especially at high speeds or on loose surfaces.

Image: This image highlights the sensitive hydraulic dual braking system, emphasizing its efficiency and stopping power.
3.5 LCD Display
The intelligent LCD provides real-time information including speed, battery level, and current riding mode. Monitor these indicators to manage your ride effectively.
3.6 Safety Lighting
The bike includes bright headlights, taillights, and turn signals for enhanced visibility and safety, especially during low-light conditions or night riding.

Image: This image displays the integrated safety lighting system, including turn signals, brake light, and headlight, for visibility from dawn to dusk.
4. Maintenance
Regular maintenance ensures the longevity and safe operation of your Jasion RetroVolt Pro Electric Bike.
4.1 Battery Care
- Charge the battery fully after each ride, especially if it has been significantly discharged.
- Avoid completely draining the battery to 0% to prolong its lifespan.
- Store the battery in a cool, dry place, away from direct sunlight and extreme temperatures. If storing for extended periods, charge it to 50-70% every 1-2 months.
- Use only the official Jasion charger provided with the bike.
4.2 Tire Pressure
Check tire pressure before each ride. Maintain the recommended pressure (typically indicated on the tire sidewall) for optimal performance, safety, and range. The bike uses 20 x 4-inch fat tires.
4.3 Brake System Inspection
Regularly inspect brake levers, cables, and pads for wear. Ensure brakes respond smoothly and effectively. Adjust or replace components as needed. If you experience issues like "Brake Error 5", consult the troubleshooting section or contact support.
4.4 General Cleaning
Clean the bike regularly with a damp cloth and mild soap. Avoid using high-pressure washers directly on electrical components. Lubricate the chain periodically.
4.5 Suspension System
The full front and rear suspension system absorbs bumps for a smoother ride. Periodically check the suspension components for proper function and any signs of damage or leaks.

Image: This image illustrates the full suspension system, designed to absorb bumps and provide a smooth riding experience.
5. Troubleshooting
This section addresses common issues you might encounter with your Jasion RetroVolt Pro Electric Bike.
| Problem | Possible Cause | Solution |
|---|---|---|
| Bike does not power on | Battery not charged, battery not properly seated, loose electrical connection. | Ensure battery is fully charged and correctly installed. Check all visible electrical connections. |
| Motor not assisting | PAS level set to zero, battery low, motor connection issue. | Increase PAS level on the display. Check battery charge. Inspect motor cable connections. |
| "Brake Error 5" displayed | Faulty brake sensor or connection. | Inspect brake sensor cables for damage or disconnections. If the issue persists, contact Jasion customer support. |
| Reduced range | Low tire pressure, heavy load, frequent use of throttle, cold weather. | Check and adjust tire pressure. Reduce load. Use pedal assist more often. Battery performance can be affected by cold temperatures. |
6. Specifications
| Feature | Detail |
|---|---|
| Model Name | RetroVolt Pro |
| Motor | 2000W Peak Brushless Motor, 99Nm Torque |
| Max Speed | Up to 38 MPH |
| Battery | 48V/13AH or 52V/20AH Removable Li-ion Battery (864 Wh) |
| Max Range | Up to 70-90 Miles (PAS mode, depending on battery option) |
| Charging Time | Approximately 4-5 hours |
| Tires | 20 x 4-inch All-Terrain Fat Tires |
| Frame Material | High Carbon Steel |
| Max Load Capacity | 330 lbs |
| Suspension | Full Front & Rear Dual Suspension |
| Brakes | Dual Disc Braking System |
| Gears | 7-Speed Transmission |
| Recommended Rider Height | 5'1" - 6'6" |
| Included Components | Battery, Ebike, User Manual |

Image: This image provides a detailed diagram of the bike's dimensions and indicates the recommended rider height and maximum load capacity.
7. Warranty Information
The Jasion RetroVolt Pro Electric Bike comes with a 1-year (12-month) warranty from the date of purchase, covering manufacturing defects in materials and workmanship. This warranty does not cover normal wear and tear, misuse, accidents, or unauthorized modifications.
For detailed warranty terms and conditions, please refer to the official Jasion website or contact customer support.
8. Customer Support
For any questions, technical assistance, or warranty claims, please contact Jasion customer support:
- Phone: 1 (888) 825 6366 (Monday-Friday, 9am-6pm EST)
- Email: support@jasionbike.com
- Website: Visit the official Jasion website for additional resources and e-manuals.

Image: This image provides a QR code to access the e-manual and lists contact details for customer support.
