ONESPORT OT08 PRO User Manual


User Manual – ONESPORT OT08 Pro

Adult All-Terrain Electric Bicycle

1. Important Safety Information

⚠️ Potential fire risk: strictly follow charging and storage instructions.

  • Wear full protective gear when riding.
  • Comply with local laws and regulations regarding electric bicycles.
  • Before each ride, perform a pre-ride check:
    • Check tire pressure
    • Check brake function
    • Check battery charge level

2. Bicycle Overview

The ONESPORT OT08 Pro is the advanced version of the OT08, featuring dual batteries and a 500W motor, ideal for all terrains.

Key Features

  • Motor: 500W Brushless, 65–70 Nm torque
  • Battery: Dual 48V / 18Ah + 18Ah batteries, removable and lockable
  • Range: Approximately 170–190 km in pedal-assist mode (PAS), 85–95 km in electric-only mode, depending on terrain, rider weight, and chosen assist level.
  • Max Speed: 25 km/h homologated, assist up to 35 km/h
  • Tires: 20 × 4.0 inch fat tires
  • Brakes: Front and rear hydraulic disc brakes
  • Suspension: Reinforced front and rear
  • Display: Multifunction LCD: speed, distance, battery level, assist modes
  • Net Weight: ≈ 33 kg
  • Max Load: 150 kg
  • Water Resistance: IPX4

3. Box Contents

Item Description
1 × ONESPORT OT08 Pro Electric Bicycle Main bicycle, partially assembled (frame, wheels, motor, batteries installed).
2 × 48V / 18Ah Lithium-ion Batteries Removable and lockable with keys, for double range.
1 × 48V / 2A Charger Full charge in 6 to 8 hours. Power cable included.
2 × Battery Keys Allow for secure locking and removal of batteries.
1 × Assembly Tool Kit Allen wrenches and open-end wrenches for final assembly (pedals, handlebars, front wheel).
1 × Pair of Pedals Anti-slip aluminum pedals to be installed.
1 × Front and Rear Mudguards Protects against mud and water splashes.
1 × User Manual Complete instructions: Official OT08 Pro Manual 👉
1 × Quick Connect Cable (display / motor) Connects the controller to the motor and LCD screen.

4. Setup and Assembly

  1. Pedal Installation: screw the left/right pedals onto the corresponding cranks.
  2. Handlebar Assembly: attach to the stem and tighten screws correctly.
  3. Wheel Installation: ensure they are correctly installed and tightened.
  4. Mudguard Attachment: install the front and rear mudguards.
  5. Battery Installation: insert and lock with the provided keys.

5. Bicycle Use

  • Power On: press the power button.
  • Assist Modes: selection via the LCD screen (1 to 5 or turbo).
  • Braking: use the front/rear levers.
  • Lighting: activate lights via the LCD screen.

6. Care and Maintenance

  • Cleaning: damp cloth only, avoid high-pressure jets.
  • Lubrication: oil chain and moving components.
  • Tire Check: adjust pressure according to recommendations.
  • Brake Inspection: check brake pad wear.
  • Battery Check: monitor cycles and charge status.

7. Troubleshooting

Problem Solution
Bike does not turn on Check connections and charge of both batteries
No pedal assist Check pedal sensor and battery connections
Strange motor noise Check motor cables and connections

8. FAQ

Q: What is the range of the bike?
A: Approximately 170–190 km in pedal-assist mode (PAS), 85–95 km in electric-only mode, depending on terrain, rider weight, and chosen assist level.

Q: Can I use the bike in the rain?
A: It is splash-resistant (IPX4), avoid prolonged immersion.

Q: How should I store the batteries?
A: In a dry and cool place, away from extreme heat and cold.