Aostirmotor Electric Bike Review: Aostirmotor Ebikes - Anyone Have One? If So, How Do You Like It?

Why You Want an Aostirmotor E-Bike

When you begin looking for an Aostirmotor electric bike review, why you want one may be a vivid picture: a scene of power, sturdiness, and pure boldness. This brand has managed to find its place in the crowded e-bike space with its emphasis on overpowered motors, oversized tires, and frames built to take more than just a flat city street. You are not just in search of a spec sheet; you are trying to figure out the real-world experience. And that impressive power — does it make for an exhilarating ride? However, is the tough construction pragmatic for your use case? In this full review, I aim to slice through the company-mandated hype and give you a crystal-clear deep-dive into the whole Aostirmotor lineup, a hands-on ride report on the most popular models, and the information you need to decide whether one of these burly e-bikes is right for your next adventure.

Aostirmotor has a vast lineup and sometimes, different models are hard to compare, like frame design, power of motor, and so on. To give you a fair account, here is an organized compilation of their main products and series, which are mostly related to the fat tire and mountain e-bike industry:

• S18 Series

  (Fat Tire Full Suspension Mountain E-bike)

• S07-B

  (Step-Over Commuter/Cruiser Fat Tire E-bike)

• S07-G

  (Step-Thru Commuter/Cruiser Fat Tire E-bike)

• S17

  (Step-Thru All-Terrain E-bike)

• A20

  (Folding Fat Tire E-bike)

• S05-1

  (Retro Style Cruiser E-bike)

• G350

  (Step-Thru City E-bike)

• A-PAS (D)

  (Discontinued but still available used, multiple models)

Aostirmotor Hands-On Ride Report

In our hands-on, we take a look at three from Aostirmotor's stable, all of which show a different side of the brand. It’s more than just numbers though – it’s how the bike feels to ride and the way it looks.

First, the Aostirmotor S18.

Aesthetically, this electric bike is a monster. The full-suspension frame is mounting a big rear shock and big front forks which tell you it’s in the business of tearing up rough terrain. Swing a leg over it and you’re in charge. It has an aggressive upright riding position. On a trail, it’s a thrilling feeling. That potent 750W motor doesn’t just help you, it hauls you up gradients with an epic surge of torque. You can actually feel the front and rear suspension working together, sucking up roots and rocks, resulting in a shockingly smooth, controlled ride on rough terrain. With 4-inch fat tires, you'll have tremendous traction and comfort on all kinds of terrain, and you can take this bike on pavement for a real workout, too. It’s a heavy bike, and you feel that weight, but it’s not a negative — it’s a sense of being planted and stable.

Next up, we took the brand's workhorse cruiser — the S07-B — for a ride.

This model ditches that sophisticated rear suspension for a hardtail frame and a nice big, useful rear rack. What we have here is a feeling of robust utility. It packs the same punch under the hood with fatter tires than its mountain-going siblings, but with a more laid-back attitude. On the road, the ride is plush and sprung, as a product of the immense air volume contained within the tires. It accelerates quickly, gliding over mild road imperfections. We viewed it as the ultimate all-weather commuter or delivery vehicle. The power is there available to tackle steep city hills, and fat tires are unfazed by potholes or slick rainy streets. There’s no mistaking the presence of the bike; it looks rugged and gets ridden like that completely. It’s an easy, powerful, and very practical machine.

And at last, the A20 fat tire e-bike!

The user experience in question here is twofold. That footprint is surprisingly small for a fat tire bike when folded, small enough to fit into the back of an SUV or an RV storage bay. Folding is not quite as easy, but not difficult given the weight — you’ll need to make a small jump when you lift it. It's comfortable and, once unfolded, it feels every bit the legitimate e-bike and less of a flimsy concession. The 20-inch wheels give it a bit more of a zippy, easy off the line feel than its 26-inch cousins. The ride is fun, zippy, and ideal for urban adventuring or a portable companion on a camping trip. You could still get great fat tire cushioning and roll over curbs or wander off into a sandy beach path without thinking twice. It’s the model that carries the rugged DNA of Aostirmotor into a much more compact, portable unit.

Deeper Considerations and a Key Alternative

There are deeper considerations than just the ride itself for prospective buyers. What attracts most people to Aostirmotor is its bang-for-buck factor; this one gives you a lot of motor for not a lot of money. A real plus for cyclists living in hilly terrain, heavier folks who want to feel confident when they need it, or if you're just looking for that fast get up and go! Another huge benefit is the natural versatility of the fat tire layout. These bikes don’t discriminate against any particular type of terrain; you can also ride on street, trail, beach, and over potholes. Build quality isn't premium boutique, but bodywork is strong and built to last, with solid seams and bits that are built to take punishment. And most of the models, such as the S07-B hardtail, are so simple that there are fewer complicated parts to maintain, a perspective appreciated by those who like a no-nonsense ownership experience. Lastly, there’s an active online following of Aostirmotor owners that are a wealth of knowledge in troubleshooting, modifications, and sharing ride experiences, adding a level of support over and above the manufacturer. You should be aware of the weight of these bikes, however — they are relatively heavy and can be awkward to carry upstairs or load onto a bike rack. You should also check your local laws on e-bike motor wattage, as Aostirmotor's strong motors might go beyond what is legally allowed to use on certain bike paths or trails in some areas.

Where Aostirmotor places its focus more on raw power, though, there will be riders who simply want a cleaner, more sophisticated, and flexible package when riding around their home city, but still taking proper off-road capability out into the sticks with them. For that rider, the ENGWE EP-2 Boost is a strong contender. DESIGN & PERFORMANCE: Made for commuting and you can also explore with it beyond city streets. It's powered by the torque that you exert, and there is a very fine and intuitive pedal reaction. Unlike the kicking-in effect of a cadence sensor, the torque sensor takes stock of your pedaling force and administers an equivalent dose of motor assist, so the ride feels organic and reactive, as if an extension of your own exertion. To tackle gradients up to 15 degrees, customers can utilize a special "Boost" button to deliver the motor’s full 55 N.m of torque for an instant stratospheric power boost. The EP-2 Boost is driven by a whisper-quiet, reliable, and EU-wide street-legal 250W brushless motor and removes some serious range anxiety with its easily removable 48V 13Ah lithium-ion battery which can last up to a staggering 120 km in its most frugal assist setting. Organic 20 x 4 fat tires, fixed to one-piece steel wheels, with service of less frequency compared to a traditional laced wheel, ensure that you are prepared for obstacles that the terrain may throw at you. Safety and convenience are top priority with 180mm dual-disc mechanical brakes that provide excellent stopping power, a rear rack, and fenders included. The whole thing can be folded into a neat little package that is great for commuters who lack storage, RV options, and anyone who wants a high-tech, adjustable, user-friendly electric bike.

Aostirmotor Model Comparison

To give you a better idea of what's what amongst Aostirmotor's own range, here's a side-by-side comparison table of the main models. Only those products are listed here related to Aostirmotor, in order to remove the confusion over who does what!

Frequently Asked Questions About Aostirmotor E-Bikes

Here are the responses to five questions potential buyers ask in regards to Aostirmotor e-bikes.

Are Aostirmotor e-bikes easy to put together?

In most cases, Aostirmotor e-bikes come 85% assembled in one big box. The rest of the installation is pretty standard (attach the front wheel, handlebars, pedals, saddle). For anyone with average mechanical abilities, the process of putting them on is fairly simple and takes between 1-2 hours. The company offers fixtures and instructions, but the instructions may sometimes be generic. Watch a model-specific assembly video on YouTube. It will be much more helpful than the included manual. For those that need their bike set up to ride right out of the box, swinging by a local bike shop for a check-over is definitely worth the money.

How far can an Aostirmotor e-bike go in the real world?

The quoted range is always calculated based upon best-case conditions: light rider, flat terrain, no wind, using the least amount of pedal assist. The actual range of an Aostirmotor – as with all powerful e-bikes – is very much determined by how you ride. If you’re aggressively utilizing the throttle every time you come to a stop and you regularly ride in the higher assist modes on undulating terrain, you’re likely to see 25-35 miles (40-56 km). Conservative riders that use lower pedal-assist levels and ride with a consistent pedal output or in flatter terrain can easily reach 40-50 miles (64-80 km) or beyond. The range is also highly affected by rider weight, tire pressure, and ambient temperature.

How do Aostirmotor e-bikes perform on standard roads and pavements?

They may look as if they belong in the muck, but they do surprisingly well on pavement. The key is the fat tires. They also offer a beautifully buffered ride, soaking up the cracks, bumps, and potholes often better than a standard road or hybrid bike. That is what makes them so comfy for your commute. The only compromises are a slight “hum” from the knobby tires when you’re spinning on smooth asphalt, and more rolling resistance, which means that you’ll have to depend on the motor more than you would with a skinny-tire bike. They’ve got much greater grip than you might think on tarmac, particularly in the wet.

Can I modify components on my Aostirmotor e-bike?

Yes, absolutely. Aostirmotor bikes are very modifiable, which is one of the reasons they are so popular among hobbyists. Popular mods include replacing the mechanical disc brakes with hydraulic and the saddle for something more comfortable, swapping the handlebars or stem for a better fit, and adding better lights. Almost all of its parts — including brakes, shifters, and derailleurs — are standard mountain bike components, which are available more easily. Replacing the key electronic parts such as the motor or controller is very difficult and should be done by adults, preferably with experience.

Where does Aostirmotor ship from and how is their support?

Aostirmotor generally deliver their bikes from local warehouses, in the likes of the USA or Europe. This means faster shipping times than if you ordered right from an overseas factory. Their customer support is mainly via email with their website contact form. Like most direct-to-consumer e-bike brands, response times can be hit or miss. They’re often useful for troubleshooting and shipping you free replacement parts if you are within the warranty period for technical problems. But you will generally be responsible for doing the repair or hiring your nearest local mechanic, and that is a fair model for this market.

All in all, an Aostirmotor electric bike is a tough and powerful friend designed to storm through difficulties with ease.