aostirmotor s18 750w bike is a 750W 48V full suspension fat tire electric mountain bike designed for off-road riding, trail exploration, and everyday all-terrain commuting. aostirmotor s18 bike delivers strong rear hub motor power, smooth suspension comfort, and stable handling, making it ideal for mountain trails, dirt paths, snow, sand, and rugged outdoor use. In addition, it features a high-capacity lithium battery, dual suspension system, and hydraulic disc brakes for improved control and safety.

Powerful 750W Motor Performance

The bike is equipped with a 750W brushless rear hub motor (peak up to around 1000W) that provides strong torque for climbing hills and fast acceleration. It can reach speeds of up to around 28 mph depending on conditions. Moreover, it delivers reliable power for both off-road adventures and daily riding needs.

48V Lithium Battery System

It features a 48V 15Ah removable lithium battery that supports practical riding range and stable energy output. Riders can expect up to around 20–40 miles per charge depending on terrain, load, and assist level. In addition, the removable design makes charging more convenient for everyday use.

Full Suspension Off-Road Comfort

The aostirmotor s18 bike includes a front suspension fork and rear shock system designed to absorb bumps from rough terrain. This improves ride comfort on rocky trails and uneven surfaces while reducing rider fatigue during longer rides.

Fat Tire All-Terrain Stability

It comes with 26” x 4.0” fat tires that improve grip, balance, and shock absorption on snow, sand, mud, and gravel. This enhances stability and control across unpredictable outdoor environments and rugged terrain.

Durable Aluminum Frame

The bike uses a reinforced 6061 aluminum alloy frame built for strength and long-term durability. This ensures stable handling even under heavy load conditions, supporting riders up to around 300 lbs.

Hydraulic Disc Brake Safety System

It features front and rear disc brakes that provide strong and reliable stopping power in all conditions. This improves rider safety during downhill riding, sudden stops, and off-road control situations.

Best For

The aostirmotor s18 bike is best suited for riders who want a 750W full suspension fat tire electric mountain bike with solid off-road capability, strong torque, and comfortable ride quality for trail riding, commuting, and outdoor adventure use.