ONESPORT OT05 User Manual
User Manual – ONESPORT OT05
Adult Electric Bicycle
1. Important Safety Information
⚠️ Risk of fire or electric shock: strictly follow charging and storage instructions.
- Wear a helmet and appropriate protective gear.
- Check brakes, tires, and fastenings before each ride.
- Comply with local legislation for electric bicycles.
- Do not disassemble the motor or electrical components.
- Keep the battery away from moisture and excessive heat.
- Ride cautiously, especially on uneven terrain.
2. Product Overview
The ONESPORT OT05 is an electric bicycle designed for city and mixed-terrain rides. Compact, stable, and responsive, it offers a good balance of power, range, and comfort.
Main Features
- Model: ONESPORT OT05
- Frame: Aluminum
- Fork: Front suspension
- Motor: 36V 250W brushless (torque 45 N·m)
- Battery: Removable 36V 13Ah Lithium-ion
- Display: Multifunction LCD
- Max speed: 25 km/h (EU legal limit)
- Range: 60–80 km depending on usage
- Transmission: Shimano 7-speed
- Brakes: Front/rear mechanical disc brakes
- Charging time: 5–6 h (42V 2A charger)
- Tires: 26 × 2.35 inches
- Net weight: 24 kg
- Max load: 120 kg
- Water resistance: IPX4
- Foldable frame: No
3. Unpacking and Assembly
- Unpacking: remove protective materials and check for all parts.
- Handlebar assembly: insert and center, then tighten firmly.
- Pedal assembly: L = left (counter-clockwise screw), R = right (clockwise screw).
- Saddle adjustment: adjust height for smooth pedaling.
- Pre-ride check: brakes, fastenings, tire pressure.
4. Starting Up
- To turn on: press the Power button on the LCD screen for 2–3 seconds.
- To turn off: hold Power until it shuts down.
5. Display and Controls
- Display: speed, distance, assist level, battery.
- Assist levels: 0 to 5 depending on desired power.
- Lights: activate by long-pressing the “+” button.
- Transmission: Shimano 7-speed manual control.
6. Battery and Charging
- Only use the original charger (42V 2A).
- Charge in a dry, ventilated area, at room temperature.
- Do not leave plugged in after full charge.
- Long-term storage: keep battery between 50% and 70% charged and recharge every 2 months.
- Avoid extreme temperatures (< 0 °C or > 45 °C).
7. Maintenance
- Clean with a damp cloth (never use a high-pressure jet).
- Regularly lubricate the chain and joints.
- Check brake and cable tension.
- Inspect bolts and screws after every ten rides.
8. Troubleshooting
- Bike won't turn on: battery discharged or poorly connected.
- No assist: pedaling sensor or brakes blocked.
- Display not working: check wiring or internal fuse.
- Unusual noises: tighten screws or check chain.
9. Usage Tips
- Adjust speed according to road conditions.
- Do not immerse the bike in water.
- Avoid starting on a hill with a high assist level.
- Check tire pressure to optimize range and comfort.
10. Warranty and Support
Your ONESPORT OT05 bike is covered by a manufacturer's warranty.
- Frame and motor: 2 years
- Battery and charger: 1 year
- Keep your purchase invoice and contact your dealer for any assistance requests.


