SKU: 55383469150
all-terrain e-bike fully

all-terrain e-bike fully Aostirmotor S18 48V/15Ah 750W All Terrain Fat Tire Electric Mountain B – Your Outdoor Setup Starts Here

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Description

all-terrain e-bike fully Aostirmotor S18 48V/15Ah 750W All Terrain Fat Tire Electric Mountain B – Your Outdoor Setup Starts HereAostirmotor S18 48V 15Ah 750W All Terrain Fat Tire Electric Mountain Bike 160694 Enjoy Nature Adventures with This Electric Mountain Bike! Have the freedom to go anywhere and have a reliable daily ride with the Aostirmotor S18 Electric Mountain Bike! This stylish full size mountain bike features sporty fat tires and a powerful electric motor to help you navigate high traffic city roads and trails with ease. The S18 comes with a big battery and a full

Aostirmotor S18 48V/15Ah 750W All-Terrain Fat Tire Electric Mountain Bike 160694

Enjoy Nature Adventures with This Electric Mountain Bike!

Have the freedom to go anywhere and have a reliable daily ride with the Aostirmotor S18 Electric Mountain Bike! This stylish full-size mountain bike features sporty fat tires and a powerful electric motor to help you navigate high-traffic city roads and trails with ease. The S18 comes with a big battery and a full suspension design, which are what you need to go through congested paths to school work or distant trails. It is among the best electric mountain bikes for sale today. This electric bike is perfect for students, moms, and dads going to work, riders, and outdoor enthusiasts.

The Aostirmotor S18 Electric Bike is the ideal ride for those who tend to bike on harsh terrain. It comes with a powerful 750-watt brushless motor, which is bigger than the competition, so you can speed quickly and have the torque to cross rugged terrain. It has more power than many expensive electric bikes and is the perfect ride for city commuting or hitting the trails. The motor is installed inside the rear wheel hub, which has the advantages of being mechanically simpler, providing torque directly to the wheels, and protecting the motor from the elements.

The S18 features a modern-style bike frame designed for riding on loose and hard surfaces. This bike is suited for rolling on surfaces such as dirt and gravel and rides very well on hard surfaces. It is a perfect daily rider and a ride for daily commuting and adventures. Have the confidence to use it on the road and travel dirt trails, curbs, and pathways to cut your commute. The Aostirmotor S18 is available in beautiful black and green colors.

This bike is designed to roll over rough terrain with ease, featuring a front and rear suspension and a set of aluminum alloy wheels. Because it is an electric bike, you can take advantage of bike lanes and off-road trails to avoid city traffic. It is a perfect choice for users who want the convenience of bikes when commuting. Aside from being quick transport, this electric bicycle has zero emissions, making it a greener, ecologically-friendly alternative to cars.

The bike has a throttle and pedal assist, so you can choose to maintain speed with little effort or conserve the battery. It can travel up to 21 to 43 miles (35 to 70 kilometers) on a single charge, so it is a perfect daily driver that will not lose charge halfway in your commute. Avoid city traffic to get to your destination quickly. Purchase the Aostirmotor S18 Electric Bike here at Electric Bike Paradise!

  • The Aostirmotor S18 Electric Bike is perfect for adults and for anyone who wants a high-performance bike that they can use for adventures or for everyday use. It sports a beautiful mountain bike frame and a set of lightweight fat tires, so you get the best of both worlds. Have no problems riding it on the pavement or on the dirt. The S18 is ideal for nature lovers, outdoor adventurers, and everyday commuters who prefer comfortable riding.
  • This is a powerful bike for its size! The Aostirmotor S18 has a 48-volt, 750-watt brushless motor, giving the bike incredible power and a respectable speed of 28 miles per hour (45 km/h). Expect this bike to achieve fast speeds in traffic and off the road. The motor sits inside the rear wheel, sending torque directly to the ground for fast acceleration. It has a large motor for its size so you will have no problems riding uphill or over bumps. 
  • This electric fat bike has a single-charge range of 21 miles when you use throttle exclusively or up to 43 miles with pedal assist. Have the confidence to travel long trips or round-trip routes to work or school. The Aostirmotor S18 has an 11.6 amp/hour Samsung lithium battery power pack that can be removed so you can charge it inside. The battery charges to full in four to six hours, so you can charge the bike for an hour or two to extend its range. 
  • The Aostirmotor S18 features a twist throttle and five-level pedal assist hooked to a speed sensor for seamless action. Choose the pedal-assist to increase the range of the bike, or use the throttle to travel and speed up effortlessly on the road. The bike also has a seven-speed Shimano rear derailleur, so you can control and ride it like an ordinary bike.
  • It is a capable electric bike featuring a Zoom spring front fork suspension and a shock absorber on the rear. The equipped 4-inch fat tires offer premium grip and comfort whether you bike on the road or go over dirt. The bike comes with front and rear mechanical disc brakes that are reliable and enable you to stop on a dime. It features a high-quality bike frame crafted from rustproof 6061 aluminum. Aluminum is lightweight and does not suffer rust problems compared to steel-based frames. 
  • The Aostirmotor S18 is a stylish bike featuring a streamlined mountain bike frame and 26-inch aluminum alloy rims for a sporty look. The exposed disc brakes and sleek tires give this bike a sleek look. It is a practical choice with durable components for total mobility. The Aostirmotor S18 Electric Bike is perfect for commuting and everyday mobility.

Seek Distant Places with this Electric Fat Bike!

Do you need a capable electric bike for the city commuting to work or school? Are you looking to have something usable on both off-road routes and urban environments? Many riders prefer the conveniences of foldable electric bikes, which are easy to store and ride to school or work. The Aostirmotor S18 is perfect for adults and teens who want to enjoy riding mountain bikes for commuting in the city and have a capable ride for off-road routes. The mountain bike frame is popular and easy to ride. Enjoy driving with the full suspension setup that absorbs the bumps and potholes of your daily route. 

The Aostirmotor S18 has a single-charge range of 21 to 43 miles depending on how you use the throttle and pedal assist, so it has more than enough to last the whole day. Feel the excitement once more, as this electric fat bike has a powerful 750-watt brushless motor and a seven-speed Shimano derailleur. It has a lot of power reserve for quick acceleration, which is needed to get through traffic. 

Perfect Dimensions

The Aostirmotor S18 Electric Bike is 73” inches in length, has a handlebar height of 44 inches, and weighs 88 lbs. (39.9 kilos), including the battery. The bike requires minimal assembly right out of the box. 

The S18 has a charger and requires just six hours to charge the battery fully. Make sure to charge the bike before use. Before riding the bike for the first time, adjust the brakes and inflate the tires to the recommended level. Check every component of the bike before using it. 

Equipped with Modern Electronics

Enjoy traveling on the Aostirmotor S18 Electric Mountain Bike. It is equipped with a twist throttle that is easy to use on the road. If you prefer to pedal, choose to use the pedal-assist for more comfortable pedaling. Control speed and torque with the seven-speed Shimano derailleur. See everything you need with the LCD Intelligent Display, displaying the battery level, running speed, assisting level, and trip distance.

The S18 is powered by a 48-volt lithium-ion battery pack that is removable so you can charge it inside your home or office. The bike charges fully in just six hours, so charging it for a few hours can extend the range. For additional comfort, the stem of this bike is adjustable and comes with a wide saddle. Enjoy all of these benefits in this nifty yet powerful bike. The bike has road essential accessories such as a front headlight, a rear rack, and a kickstand. You will love to ride it every day, and it is perfect for the daily commute and weekend adventures.

Don’t Go for Surplus or Cheap Electric Bikes

Many cheap electric bikes are not reliable nor safe, so buying one is often hit or miss. They are not designed for sustained use because of poor craftsmanship or poorly-done electronics. Some cheap fat tire bikes lack even the most basic electrical safety features, putting the user at risk of electric shocks. Also, a lot of surplus models cannot climb hills or provide enough level of pedal assist. They are equipped with cheap batteries and cannot go far. 

If something goes wrong, there is no way to have them serviced. You cannot depend on them. Lastly, most are not comfortable to use. Choose safety and real performance. Only choose electric bike brands that have years of presence in the market and have certifications. 

Get the Real Deal with Aostirmotor Fat Tire Electric Bikes!

Electric bicycles are the way to go for an active and sustainable lifestyle. It has been proven that such vehicles allow people to achieve physical activity levels, especially those who aren’t fit enough for exercise. Driving a car in the city can eat up your limited time and cut productivity. Don’t forget the cost of car maintenance, insurance, and gas. 

Here at Aostirmotor, we want to be creative and create electric bikes that fit people’s lifestyles and most will find easy to operate. We also design our bikes to deliver more power when compared to competitors (hence our motto ‘Power brings Joy’), so our customers will find more value in their purchase. Our company has a presence not only in the United States but also in Europe and Asia. Get amazing deals plus tons of freebies when you purchase this Aostirmotor S18 Electric Bike here at Electric Bike Paradise!

Specifications
  • Best Seller Ranking: #18 in Bikes
  • Brand: Aostirmotor
  • Type: Mountain Bikes
  • Size: 26'
  • Color: Black
  • Age: Adult
  • Frame Material: Alloy
  • Sports Team: 2 Packs
  • Date First Available: October 16, 2021
What Our Experts Think
  • Exceptional Power: The 750W motor paired with a 48V/15Ah battery delivers strong acceleration and hill-climbing ability, making it perfect for all-terrain riding.
  • All-Terrain Fat Tires: Equipped with 26" x 4.0" fat tires, the bike ensures superior grip and stability on rough trails, sand, snow, and uneven surfaces.
  • Long Range: With a range of up to 60 miles per charge, the Aostirmotor S18 is ideal for longer rides and outdoor adventures.
  • Versatile Riding Modes: Offers throttle-only, pedal-assist, and manual modes for a customizable and efficient riding experience.
  • Durable and Comfortable: Built with a sturdy aluminum alloy frame, front suspension, and ergonomic saddle, this bike ensures a smooth, comfortable ride even on challenging terrains.
  • Reliable Components: Features Shimano 7-speed gears for easy shifting and hydraulic disc brakes for precise and effective stopping power.
  • Convenient Charging: The removable 48V battery allows for easy charging, whether at home or on the go.

The Aostirmotor S18 is an excellent choice for riders seeking a powerful, long-range, and durable electric mountain bike for both on and off-road adventures.

Q&A

Q: What is the Aostirmotor S18 Electric Mountain Bike?
A: The Aostirmotor S18 is a powerful all-terrain fat tire electric mountain bike designed for off-road adventures and rugged terrain. It features a 750W motor and a 48V/15Ah battery, delivering superior performance for tackling steep hills, rough trails, and various outdoor environments.

Q: What is the range of the Aostirmotor S18 on a single charge?
A: The Aostirmotor S18 offers a range of up to 40–60 miles on a single charge, depending on terrain, rider weight, and riding conditions.

Q: How fast can the Aostirmotor S18 go?
A: The bike can reach speeds of up to 28 mph, providing a fast and powerful ride for both off-road and urban environments.

Q: What type of motor does the Aostirmotor S18 have?
A: The Aostirmotor S18 is powered by a 750W brushless motor, offering high torque and reliable performance for climbing hills and navigating challenging trails.

Q: Is the battery removable for charging?
A: Yes, the 48V/15Ah lithium-ion battery is removable, making it easy to charge both on and off the bike.

Q: What kind of tires does the Aostirmotor S18 use?
A: The bike is equipped with 26" x 4.0" fat tires, designed for superior grip and stability on all terrains, including sand, snow, mud, and rocky trails.

Q: Does the Aostirmotor S18 offer pedal assist?
A: Yes, the Aostirmotor S18 offers multiple levels of pedal assist, along with a throttle mode, allowing riders to choose between full manual pedaling, assisted pedaling, or full electric power.

Q: Is the Aostirmotor S18 suitable for off-road use?
A: Yes, the Aostirmotor S18 is specifically designed for off-road use. Its fat tires and powerful motor make it perfect for tackling challenging terrains, including mountains, gravel paths, and forest trails.

Q: How do I maintain the Aostirmotor S18?
A: Regular maintenance includes checking tire pressure, inspecting the brakes, cleaning the bike, and charging the battery. It’s also recommended to lubricate the chain and check the motor and drivetrain regularly for optimal performance.

Q: What is the weight capacity of the Aostirmotor S18?
A: The Aostirmotor S18 has a weight capacity of up to 350 lbs, making it suitable for a wide range of riders and cargo.

Q: Is the Aostirmotor S18 suitable for long rides and tough terrain?
A: Yes, with its powerful motor, long-range battery, and durable fat tires, the Aostirmotor S18 is built for long rides and can handle the most challenging terrains with ease.

Maintenance Tips 
  1. Battery Care: Charge the 48V/15Ah battery after each ride, avoiding overcharging or complete depletion. Store it in a cool, dry place when not in use for extended periods.
  2. Tire Maintenance: Regularly check the fat tire pressure before each ride, ensuring they are inflated to the recommended levels for optimal performance. Inspect tires for punctures or excessive wear, especially after off-road use.
  3. Chain Lubrication: Apply lubricant to the chain every 1-2 months or after rides in wet, muddy, or dusty conditions to keep it running smoothly and prevent rusting.
  4. Brake Check: Test the brakes before each ride and ensure they are functioning properly. Check brake pads regularly for wear and replace them as needed to ensure safe stopping power.
  5. Suspension Care: Clean and inspect suspension components (front fork and rear shock if applicable) regularly, especially after rough terrain rides. Check for leaks, damage, or any loss of performance.
  6. Motor Maintenance: Keep the 750W motor clean and free of dirt and debris. Avoid exposing the motor to excessive moisture or high-pressure water, as it may damage the electrical components.
  7. Electrical Check: Inspect all wiring, connectors, and electrical components (such as the throttle, display, and controller) for wear, loose connections, or corrosion. Keep electrical parts dry and clean.
  8. Frame and Fat Tire Cleaning: Clean the frame and tires after each ride to remove dirt, mud, and debris that could impact performance, especially when riding on challenging off-road terrains.
  9. Storage: Store the bike in a cool, dry place when not in use. If leaving it outdoors, cover it with a weather-resistant cover to protect it from the elements.
  10. Annual Servicing: Schedule an annual professional tune-up to ensure the motor, battery, brakes, suspension, and other components are in optimal condition for the upcoming season.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 55383469150

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4.0 ★★★★★
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Verified Purchase
R. Cordosi
Louisville, US
★★★★★ 5
Outstanding Frother!
Color: Space Gray
Exceptional! This frother is in another league compared to the cheapo push button frothers. The motor is smooth, quiet and powerful. This has an intuitive thumb dial on top that operates smoothly with a wide range of smooth speed adjustment. It’s gentle enough to froth a little bit of milk for a macchiato and powerful enough to scramble 3 eggs. The head is removable for easy cleaning. It’s also rechargeable. I charged this the day I bought it on April first. I use it at least twice a day. It’s September 26th today and I have yet to recharge it and it’s not showing any signs of needing a charge. One minor quibble is that they give you 2 of the same frother heads. They are built so well, that I don’t imagine it ever wearing out. It would have been nice to get a whisk or something different. Not a deal breaker at all though.
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Reviewed in the United States on September 26, 2025
B
Verified Purchase
banjo player
Lake Worth, US
★★★★★ 5
Solid unit
Color: Black
Handheld Mixer/Frother Review A Premium Choice That Transforms Morning Coffee I am thoroughly impressed with this handheld mixer and frother. Each morning, I blend cacao and collagen powder into my coffee, and in the past, I always ended up with stubborn lumps using only a spoon or whisk. I had previously purchased a few inexpensive handheld mixers, but they disappointed me both in price and performance, struggling to mix the powders thoroughly—especially at the bottom of the cup. I came close to abandoning handheld mixers altogether, but decided to give it one last try. After reading countless reviews and carefully comparing models, I opted to invest in a higher-end handheld mixer. The anticipation was high—would this mixer truly distinguish itself from the budget options cluttering my kitchen drawer? From the moment I unboxed it, the difference was clear. The mixer felt substantial in my hand, and the build quality reflected thoughtful engineering. While this model cost roughly twice as much as the cheaper alternatives, it proved to be well worth the investment. Initially, I was concerned about the dial at the top, fearing it might be difficult to control. However, I was pleasantly surprised by its intuitive operation. The unit offers a solid feel, plenty of power, and a versatile range of speeds—from a gentle stir perfect for coffee to an impressively fast setting. I had not previously considered using this mixer as a frother, but as a cappuccino enthusiast, I decided to give it a try. I heated both 2% milk and oat milk to take the chill off, then submerged the mixing wand. Allowing the mixer to rise above the milk introduced air and created a rich, creamy foam—an unbelievable result. My homemade cappuccino now tastes like something from a café. The controls are robust, the construction is reliable, and the power is consistent. Cleanup is effortless, requiring only a quick rinse under the tap. The battery life is also noteworthy, lasting through several uses without losing strength. If you are hesitant to spend a bit more on a quality handheld mixer, I wholeheartedly recommend making the investment. This mixer has become an essential part of my morning routine. Excellent product—well done!
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Reviewed in the United States on August 13, 2025
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Philip B. Corriveau
New York, US
★★★★★ 5
Solid, powerful, rechargeable
Color: Black
Very impressed with its weight, speed and performance. The dial is great
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Reviewed in the United States on May 29, 2026
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Verified Purchase
Chief
Louisville, US
★★★★★ 4
Very nearly the perfect frother for all your basic frothing & mixing needs
Color: Black
There are a lot of middle-of-the-road frothers out there. I've been through a few of them in my recent search for something that could mix and froth well, without taking up any more outlets in my basement kitchen. Of the three Maestri frothers I've tried so far, this one wins the race by a nose. Most recently, these Maestri frothers come in basically three versions: A single-speed @ 8000 RPM, a two-speed @8000/5500 RPM, and this stepless variable-speed version. Aside from that, the only real difference in recent version pack-outs is which attachments they come with. Look over the reviews of the single-speed version and you'll find that while it can and does froth well, it starts at a single, high speed and gets there fast. This makes it pretty easy to spin liquid right out of most common cups and mugs. There is a two-speed version, but it's harder to find, only comes in one color (Grape Purple), and while it's much better than the Maestri single-speed, it still has a couple of quirks that make this variable-speed version win out. This mixes and froths whole milk, half-and-half, or heavy whipping cream, or just about anything else very well. Like all frothers, it takes a little time to learn its nuances and nail down the technique, this will definitely get you there. The best feature of this is easily the speed control. Turn the knob to turn it on at a low speed that's great to get things started, then turn the knob to crank up the speed just enough to do what you need, whether that's mixing or frothing. The low starting speed makes it easy to keep things under control without undue spilling, and the max speed is more than enough to make quick work of getting your froth on. There are really only two complaints I have with this stepless, variable speed version: - I'd really like to have a Press On / Release Off button in addition to the Speed Control knob. More than one time have I gone to turn this off, only to spin the knob the wrong way and crank the speed up to ludicrous, sloshing liquid on the counter. Being able to turn it Off just by letting go of the button would be quick and easy. This configuration would allow using a preferred speed right from the start, while still allowing speed to be adjusted on-the-fly when needed. - Give it a bigger battery. It would cost mere pennies to give this a 2000mAH+ instead of a 1200mAH battery, and I can't think of any reasonable downside to that. - Give the motor a little more torque. It's fairly easy for the current motor, at any speed, to get bogged down in a thick protein powder mix, or when pressing the frother or other attachment a bit too hard into the bottom or side of the frothing container. A bit more "oomph" would prevent that. I really like the overall design and features of thes Maestri frothers better than many other, cheaper versions. This variable-speed version is pretty great as it is and probably the one I would recommend over the single- or two-speed, for most people. But I often find myself using two hands -- one to hold it steady, and the other to turn it on and tweak the knob to the desired speed(s) -- for a device that should arguably need only one hand to use. Just a couple of minor tweaks as noted above would make this the overall best frother of its type that I've used.
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Reviewed in the United States on May 23, 2025
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Verified Purchase
D. Smith
Fort Morgan, US
★★★★★ 5
Hands down, the BEST handheld frother I've ever used!
Color: Black
Hands down, the BEST handheld frother I've ever used! I got the black one, but any color will have the same results. Over the past 12 years or so, I've used so many different handheld frothers and they've ALL fallen short of expectations for quality, longevity, power, features, and usability. I've used everything from cheap, $15 models to $50+ models and everything in-between. Some with fancy attachments for various types of mixing, frothing, beating, whipping, etc. Some with rechargeable batteries, some without. Some AC powered, some with fixed whisks, some with detachable/replaceable whisks, some with stands, etc. NONE have been spectacular. Most broke within 6 months and got tossed. ALL were major disappointments in the end, including the "revered" Zulay models of which I tried several. I finally found this Maestri House branded, variable speed frother with detachable / replaceable whisks and got one to try. I was literally on Cloud Nine the first time I turned it on. Like, WOW! Not only was it FAST on the highest speed, but it was powerful enough to churn right through milk, eggs, cream, etc, without bogging down like many others. This thing makes milk froth like a milkshake and Matcha Lattes like nothing else I've ever experienced. I used to have to sift my Matcha, then whisk it in hot water, then froth milk and then blend them together to make the perfect latte. and if the milk was cold (my preference), pre-whisking in hot water was a must to avoid lumps. However, with THIS frother? I literally pour my milk into a tall tumbler, drop in un-sifted Matcha powder, and spin up the Maestri House frother at first on a medium low speed to get it mixed, then jump straight to the highest speed to really whip that milk and match up. After about 30-45 seconds, I've got the thickest, richest, smoothest, most aerated latte around. And NO LUMPS at all!!! What a time and dish saver! And cleaning? I just run it under hot running water to get the shaft cleaned and then spin it up in a dish with hot running water for a few moments, then spin it on high for a few seconds in the air to dry it off instantly. Now, I'll be honest here, too. The specs say it can go months on a charge, using it for a couple minutes a couple times daily. Well, I guess it could do that and still spin. But I use it FULL SPEED, churning hard for at least a minute a couple times per day. After about 2 weeks, I can start to notice a speed reduction so I just plug it back in on the charger. All things considered, this is still better than all the other handheld frothers I've used over the years. After using the heck out of this thing for the past 7 months, I've even decided to start selling these in our Japanese gift shop. The manufacturer is has been very responsive both in customer support (I called them about an issue I thought I was having, and they called me back with a couple hours even though I didn't leave voicemail when they didn't answer right away) and in reseller support. I have to give these guys an A+ for responsiveness and quick resolution when problems might arise. HIGHLY recommended!!
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Reviewed in the United States on October 17, 2025

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