If you are looking for a fat tire electric bike that has both power and speed which will allow you to tackle those steep terrains, you are in the right place.

The King is one of Aostirmotor's latest models and comes with a powerful 1000W motor. Its 52V/15Ah battery is integrated into the 6061 aluminum alloy frame.

The range will vary by several factors, including total payload, surface conditions, and riding style, but on average you should expect about 31 miles of range per charge. The battery can be removed from the bike for remote charging.

Using the electronics on the Aostirmotor King fat tire electric mountain bike is intuitive and easy to learn. You can turn on the pedal assist system (PAS), and monitor all essential readouts on the display. And if you prefer to ride without the need for pedaling, just give the right-side throttle a push, and you're off!


  • Motor: 1000W Truck Brand Rear Hub Motor
  • Battery: 52V/15Ah Downtube Integrated Removable Lithium-Ion Battery w/ Samsung Cells
  • Drive Modes: 7-Speed Shimano Drivetrain w/ 5-Level Pedal Assist System (PAS) & Thumb Throttle
  • Controller: 52V 30A Controller
  • Charger: 110V-220V (US/Europe)
  • Charge Time: 4-6 Hours
  • Display: Yolin YL90T-H Color LCD Display
  • Frame: 6061 Aluminum Alloy Frame
  • Suspension: Suspension Fork
  • Brake: Front & Rear Hydraulic Disk Brakes w/ 180mm Front and 160mm Rear Rotors (4pcs brake pads)
  • Tires: 26" x 4.0" Innova Fat Tires
  • Rims: Aluminum Alloy Spoked Rims
  • Handlebar: 1.25" x 26.77"
  • Stem:1.25" x 3.14"
  • Saddle: AL6061 T4T6, 1.07" x 9.84" City Type Saddle
  • Tube Clamp: D1=30mm D2=38mm
  • Max Assisted Speed: 31 mph
  • Range Distance: 30-45 km (pure power mode) 
  • Weight: 83.77 Lbs
  • Box Weight: 94.79 Lbs
  • Max Load Capacity: 300 Lbs
  • Accessories: Rear Rack, Front Light, Fender
  • Assembly: This King comes mostly assembled. Final assembly includes attachment of the front wheels, handlebars, gauges and chains
  • Tools Required: Included
  • Package Includes: Electric Bike, Li-Ion Battery, Tool Kit, Manual, Charger, Pedal