AOSTIR – S18 Mountain Bicycle

Description

The Snakeskin Trail Dominator

The AOSTIR – S18 Mountain Bicycle is a high-performance electric mountain bike designed for off-road enthusiasts who demand power and stealth . With its unique snakeskin camouflage pattern, this bike blends into forest environments while delivering serious trail performance .

1500W High-Power Motor

At the heart of the S18 is a potent 1500W brushless rear hub motor producing 80Nm of torque . The AOSTIR – S18 Mountain Bicycle achieves a top speed of 30 mph (48 km/h) , making steep hill climbs and rough terrain effortlessly manageable .

48V 15Ah Removable Battery

The 48V 15Ah lithium-ion battery provides ample range for extended off-road adventures . The AOSTIR – S18 Mountain Bicycle delivers 25-40 km (15-25 miles) in pure power mode, with up to 50 miles in pedal-assist mode . Full recharge takes 4-6 hours .

26″ x 4.0″ Fat Tires for Ultimate Traction

Massive 26″ x 4.0″ fat tires provide exceptional traction on sand, snow, mud, and rocky trails . The AOSTIR – S18 Mountain Bicycle floats over soft surfaces and absorbs terrain irregularities that would stop standard mountain bikes .

Front Suspension Fork

The front suspension fork (ZOOM/MOZO) smooths out potholes, roots, and rocky sections of trail . Combined with the fat tires, this model provides a comfortable ride that reduces fatigue on long off-road adventures.

Mechanical Disc Brakes

Front and rear mechanical disc brakes with 180mm rotors provide reliable stopping power in all weather conditions . The bike includes 4 brake pads total, ensuring confident braking on steep descents .

Shimano 7-Speed Drivetrain

A Shimano 7-speed drivetrain gives you precise gear control for different terrains and inclines . You’ll find the perfect pedaling cadence whether climbing steep grades or cruising on flats .

Three Riding Modes

The S18 offers three distinct riding modes to match your needs :

• Pedal Mode – Traditional cycling without motor assistance
• Power Mode (PAS) – 5-level intelligent pedal-assist system
• Boost Mode (Throttle) – Rotary throttle for pure electric power

Color LCD Display

The multifunctional color LCD display shows battery power, speed, mileage, gear, and wattage . All essential ride metrics are visible at a glance.

6061 Aluminum Alloy Frame

The lightweight 6061 aluminum alloy frame provides durability without excessive weight . The frame is built for riders from 5’7″ to 6’5″ with a maximum weight capacity of 300 lbs .

Unique Snakeskin Camouflage Design

The distinctive snakeskin grain pattern sets this ebike apart visually . The AOSTIR – S18 Mountain Bicycle is designed to help hunters and outdoor enthusiasts blend into forest environments while accessing remote spots .

300 Lb Payload Capacity

Built for heavy-duty use, the S18 supports a maximum payload of 300 lbs . You can carry gear with confidence, even on challenging terrain.

Included Features

The S18 comes well-equipped from the factory :

• Front LED headlight
• Full-coverage fenders
• Kickstand
• Spoke wheels for shock absorption

Note: Rear rack is not included (optional accessory) .

Assembly and Fit

Assembly is 90% complete out of the box, with final assembly including the front wheel, handlebars, and pedals . Basic tools are included. The bike weighs 77 lbs (35 kg) and measures 76″ L x 44″ H .

Who Is the S18 For?

The AOSTIR – S18 Mountain Bicycle is perfect for:

• Hunters needing quiet, stealthy forest access 
• Off-road enthusiasts tackling rough trails
• Riders who want front suspension on a fat tire ebike
• Those needing 300 lb payload capacity
• Anyone who appreciates unique snakeskin camouflage styling 

Pros:

• 1500W powerful motor (30 mph top speed)
• 48V 15Ah removable battery (4-6 hour charge)
• 26″ x 4.0″ fat tires for all-terrain
• Front suspension fork for comfort
• Unique snakeskin camouflage pattern
• 7-speed Shimano drivetrain
• Mechanical disc brakes (180mm rotors)
• 300 lb payload capacity
• Color LCD display
• Fenders and front light included
• 90% pre-assembled

Cons:

• Heavy at 77 lbs (35 kg)
• Mechanical brakes (not hydraulic)
• Limited range in pure power mode (25-40 km)
• No rear rack included 
• Mixed customer reviews on quality control 

AOSTIR – S18 Mountain Bicycle: Technical Specifications

• Motor: 1500W brushless rear hub, 80Nm torque 
• Battery: 48V 15Ah lithium-ion 
• Controller: 48V 30A 
• Top Speed: 30 mph (48 km/h) 
• Range: 25-40 km pure power / up to 50 miles PAS 
• Charge Time: 4-6 hours 
• Frame: 6061 aluminum alloy 
• Fork: Front suspension (ZOOM/MOZO) 
• Brakes: Mechanical disc, 180mm rotors 
• Brake Pads: 4 total 
• Gears: 7-speed Shimano / Sunrace 
• Tires: 26″ x 4.0″ fat tires 
• Display: Color LCD 
• Throttle: Rotary thumb throttle 
• Pedal Assist: 5-level PAS 
• Riding Modes: Pedal / Boost / Power 
• Lights: Front LED headlight 
• Fenders: Full coverage, included 
• Rear Rack: Not included (optional) 
• Suspension: Front only 
• Weight: 77 lbs (35 kg) 
• Payload Capacity: 300 lbs 
• Rider Height: 5’7″ – 6’5″ 
• Saddle Height: 88-100cm (34.6-39.4 inches) 
• Colors: Snakeskin Camouflage 
• Model Year: 2021 
• Certification: UL certified components

Why Choose the AOSTIR S18?

The AOSTIR – S18 Mountain Bicycle stands out for its powerful 1500W motor and unique snakeskin camouflage styling. The 80Nm torque motor provides class-leading power for climbing steep hills and carrying heavy loads up to 300 lbs . The 26″ x 4.0″ fat tires and front suspension keep you comfortable on terrain that would rattle lesser bikes .

The distinctive snakeskin pattern is more than aesthetics — it’s functional camouflage for hunters who need to stay hidden in forest environments while accessing remote spots . This bike is built for the outdoorsman who wants to cover more ground quietly.

Customer reviews praise the bike’s power, speed (achieving 31-35 mph on flat ground), and comfortable ride . Some users report quality control issues, making careful inspection upon delivery important.

The AOSTIR – S18 Mountain Bicycle is for riders who want a powerful, front-suspension fat tire ebike with unique snakeskin camouflage styling.

For more options, browse our Collection of Fat Tire Ebikes or read our Ebike Buying Guide to find your perfect match.