BQi Fat Bike 300 (Step-Over) Specifications 2025

Top Speed  32km/h (20mph)
Range Up to 80km (50mi)
Rated Power 500W
Peak Power for 30 mins 750W
Motor Brand BAFANG SUTTO (rear motor)
Battery Type NIU ENERGY® lithium
Battery Capacity 48V16AH (768WH)
Portable/Removable Battery Yes
Battery Charging Time Under 6h
Battery Weight 1.2kg (2.6lbs)
Riding Modes 5 modes
  • Thumb throttle
  • Pedal assistance levels 1/2/3
  • No assistance
Display TFT Colorful Display
  • Speedometer
  • Distance traveled
  • Trip time
  • Battery level
  • Assistance level
NIU App Yes (24/7 connectivity / 4G)
  • Real-time GPS tracking
  • Anti-theft alerts
  • Speed modes
  • Ride statistics
  • Remote diagnosis
  • Bluetooth Connectivity
  • Speed modes
  • Ride statistics
  • Cruise control
  • Smart lock & unlock
  • OTA updates
Drive System Shimano ALTUS 8 Speed
3 electric gears
Advanced torque sensor
Braking System (Front) Hydraulic disc brakes with 180mm rotors
Braking System (Rear) Hydraulic disc brakes with 180mm rotors
Suspension (Front) 180mm lockable suspension 
Suspension (Rear) -
Wheel/Tire Type Air-filled pneumatic tires
Puncture resistant
Wheel Tire Size (Front) 26in x 4in
Wheel Tire Size (Rear) 26in x 4in
Frame  Aluminum
Lighting LED headlight/rear light/brake light
Water/Dust Resistant Yes (IP67/IP65/IP45)
Seating Capacity 1 person
Bike Sizing Fits riders from 172cm to 186cm (5' 8” to 6' 1”
Ground Clearance 313mm (12.3in)
Seat Height 878~1116mm (34.5~43.9in)
Dimensions (HxLxW) 1158mm x 1970mm x 680mm
(45.6in x 77.5in x 26.8in)
Max. Loading Capacity 140kg (308lbs)
Vehicle Weight (Incl. Battery) 36kg (79lbs)