Do you crave speed and power? Do you want a fat tire electric mountain bike that can tackle the steepest and roughest terrain out there? Well, get ready for an ebike riding experience like no other. 

The Aostirmotor S18-1500W is an off-road beast. I've tested a lot of powerful fat tire electric mountain bikes, and the S18-1500W really blew me away. I rode this ebike on some of the gnarliest single-track trails I could find, and I was really impressed with the sustained power output.

Aostirmotor 1500W is not just about power. It offers a full suspension frame, which along with the fat tires, will absorb a lot of the bumps you might encounter on a rugged trail.

The Aostirmotor S18-1500W battery is integrated into the curved 6061 aluminum alloy frame and offers 48V of power and a long-range 15Ah capacity. The range will vary by several factors, including total payload, surface conditions, and riding style, but on average you should expect about 36 miles of range per charge. The battery can be removed from the bike for remote charging.

Using the electronics on the Aostirmotor S18-1500W fat tire electric mountain bike was intuitive and easy to learn. You can turn on the 5-level 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 twist, and you're off!


  • Motor: Boneng Brand 1500W Rear Hub Motor
  • Battery: 48V/15Ah Removable Samsung Lithium-Ion Battery
  • Controller: 48V/30A
  • Charger: 110-220V
  • DisplayYolin YL90T-H LCD Color Display or Yolin YL81F LCD Color Display
  • Drive Modes: 5-Level Pedal Assist System, Right Side Half-Twist Throttle & 7-Speed Shimano Sunrace Derailleur
  • Charge Time: 4-6 Hours
  • Frame: Full Suspension 6061 Aluminum Alloy Frame
  • Handlebar: 31.8mm x 660mm
  • Stem: 28.6mm x 31.8mm x 110mm
  • Brake: Tektro Mechanical Disc Brakes w/ 180mm Front & Rear Rotors
  • Tire: 26” x 4” Fat Tires Mounted on Aluminum Alloy Spoked Wheels
  • Front Suspension: Zoom Hydraulic Fork w/ Lockout
  • Rear Suspension: Rear Spring Shock
  • Saddle: City Type 27.2mm x 250mm
  • Light: Front Light and Rear Brake Light
  • Fender: Included
  • Rear Rack: Included
  • Max Speed: 30 mph
  • Weight: 77 Lbs.
  • Product Size: 77” x 43”
  • Box Dimensions & Weight: 64” x 11” x 32” (88 Lbs.)
  • Seat Height: 34” - 39”
  • Standover Height: 33”
  • Weight Capacity: 300 Lbs.
  • Assembly: This S18-1500W comes mostly assembled. Final assembly includes attachment of the pedals, handlebar, front wheel, seat, fenders and light. Please see the assembly video below.
  • Tools Required: 4mm, 5mm and 6mm hex (Allen) keys, and 8mm/10mm and 13mm/15mm wrenches (Included)