Triple-mode drive
Speed From 0 to 50 Mph
Motor 4000W
Mid-Mounted Motor
Max 350Lbs
Weight Capacity 350 Lbs
60V 28AH
Battery Capacity
Range 60 Miles
Single Charge Range
255 Nm
Max 70° Gradient
Order now and receive free fenders and headlight a total value of $297.
$218.00
FREE
$79.00
FREE
These are genuine reviews from real customers
This high-performance permanent magnet mid-drive motor is the powerhouse of the S1, delivering immense power and outstanding efficiency. With a maximum torque of 255 N·m and a top speed of 50 mph, it lets you conquer any terrain with ease. Built with an IP65 protection rating, it ensures stable and reliable performance even under harsh conditions.
Equipped with a 60V 28Ah removable battery pack, it can be easily detached for convenient charging. The housing is made of high-quality steel for enhanced protection and features excellent water- and dust-resistant performance to keep your battery safe. On a full charge, it delivers a range of up to 60 miles, offering about 32% more capacity than many other batteries on the market—giving you longer, safer, and worry-free rides.
Combo deals offer greater savings—ride together, double the fun.
Equipped with a 190mm oversized perforated disc rotor and standard dual-piston hydraulic calipers, braking distance is reduced by about 30% compared to other models. Even during extended, high-intensity rides, the braking system also prevents overheating while continuously delivering powerful, reliable stopping force—keeping you in full control.
All Ebikes backed by Aipas Warranty
Learn more >
On your doorstep in just 3-8 days
Learn more >
No 5%-15% sales tax on all products
Learn more>
Don't love it? Send it back to us!
Learn more >
Welcome to our S1 Amp installation guide! This short video will show you how to easily assemble your new electric bike. The video provides clear steps and helpful tips to assist you.
PAS 1 – ECO Mode
PAS 2 – Sport Mode
PAS 3 – Turbo Mode
Can it become the ultimate toy for both the kids and their dad? With its powerful 4000W motor and removable battery, the S1 isn’t just fun, will it make you want one too?
Absolutely rips around our dirt track. We take it out to the field, hit the jumps, ride through mud, and see just how fast and fun this bike really is
The box opens. The adventure begins. From soft sand to wide-open grass, the S1 is about to be pushed to its limits—will it rise to the challenge?
Want to ride where the road ends?
The S1 with a 6000W motor delivers explosive power, smooth suspension, and the confidence to fly across dirt, gravel, and trails.
This will be an excellent first electric dirt bike for you, delivering a perfect power experience and unbeatable value for money. It excels both on the road and off-road.
Do you love the thrill of riding free and wild outdoors? The video presents a detailed review and hands-on test of the S1 AMP, highlights its key specifications, usability, performance, and overall value.
This is a hard-core off-road toy built for pure fun in the dirt. If you love unpaved terrain and the freedom of outdoor riding, this is a ride you won’t want to miss
S1 AMP dirt bike emerges as a high-performance, versatile electric bike that caters to a wide range of riders
Covered unboxing, assembly, and testing, and evaluated performance, design, and features—providing helpful insights for beginners and young riders.
The 4000W high-performance motor powers you over any terrain and through every obstacle
The Best Budget 4000W Electric Dirt Bike? Incredible Value, Powerful Yet Easy to Ride
The Aipas S1 AMP is a 4000W electric dirt bike for adults who want serious off-road power, fast acceleration, and full-suspension control. With 255 Nm of torque, a 50 mph top speed, and a 60V 28Ah removable battery, the S1 AMP is built for dirt tracks, trails, gravel, steep climbs, and open outdoor riding.
Unlike a standard commuter ebike, the S1 AMP is designed around dirt-bike-style performance. Its mid-drive motor, full suspension system, hydraulic braking setup, high-output lighting, and compact dirt-bike-style frame make it a stronger fit for adult riders who want high torque, responsive control, and more off-road capability.
Always ride according to local laws, trail rules, and safety requirements.
At the core of the S1 AMP is a 4000W mid-drive motor designed for strong acceleration and high-torque riding. With up to 255 Nm of torque and a max 70° gradient rating, this electric dirt bike gives adult riders the power needed for steep climbs, loose terrain, and demanding off-road routes.
This setup makes the S1 AMP better suited for trails, dirt tracks, gravel paths, open outdoor areas, and private off-road routes than for ordinary city commuting.
The removable 60V 28Ah lithium battery provides up to 60 miles of electric-only range on a single charge. It supports longer trail sessions, outdoor riding, and extended off-road use while allowing easier charging at home or on the go.
For adult riders who want an electric dirt bike with both high output and practical range, this battery setup helps balance power, distance, and riding flexibility.
The S1 AMP includes three power modes so riders can adjust output based on terrain and riding style.
| Mode | Best For | Riding Benefit |
| ECO Mode | Warm-up riding, lower-speed control, longer range | Helps conserve battery and makes the bike easier to manage at slower speeds. |
| Sport Mode | Hills, rough ground, mixed terrain | Adds stronger torque and acceleration for more demanding off-road routes. |
| Turbo Mode | Maximum speed, full power, high-output riding | Unlocks the strongest motor response for aggressive dirt bike performance. |
This mode system helps the S1 AMP work across different off-road conditions instead of feeling locked into one riding style.
The S1 AMP uses front and rear suspension to help absorb bumps, uneven ground, and trail impact. The hydraulic front fork and center-mounted rear shock absorber help improve control, reduce rider fatigue, and make the bike more stable on dirt, gravel, and rough outdoor surfaces.
For an electric dirt bike for adults, suspension is not just a comfort feature. It directly affects control, traction, and confidence when riding over uneven terrain.
For better visibility and control, the S1 AMP includes a 2000-lumen headlight, integrated brake lights, turn signals, and a precision braking system. These features help adult riders stay more confident when riding at higher speeds or navigating changing outdoor conditions.
Because the S1 AMP can reach up to 50 mph, braking, lighting, and rider awareness are especially important parts of the riding experience.
The S1 AMP supports up to 350 lb and fits riders from 4'2" to 6'0". With its 105 lb net weight, dirt-bike-style frame, full-twist throttle, folding footrests, and high-output mid-drive motor, it is better positioned as an electric dirt bike for adults than a standard commuter ebike.
Its frame and power system are designed for riders who want stronger acceleration, more torque, and better off-road handling than a typical electric bike.
The S1 AMP is best for adult riders who want more power than a standard ebike and a more off-road-focused ride than a commuter electric bike.
| Rider Type | Why the S1 AMP Fits |
| Adult off-road riders | The 4000W motor, 255 Nm torque, and full suspension are built for trails, dirt tracks, and rough outdoor terrain. |
| Riders who need strong climbing power | The high-torque mid-drive motor helps with steep climbs, loose ground, and demanding routes. |
| Riders who want dirt-bike-style control | The full-twist throttle, folding footrests, suspension system, and compact frame create a more dirt-bike-like riding feel. |
| Riders who want high-speed electric performance | With a top speed of up to 50 mph, the S1 AMP is designed for riders who want more speed headroom than a standard ebike. |
| Adults looking for a powerful recreational ride | It is a strong fit for outdoor riding, private off-road routes, gravel, dirt paths, and weekend trail use. |
The S1 AMP is not positioned as a lightweight city commuter. It is better for riders who want a high-power electric dirt bike built around torque, speed, suspension, and off-road control.
If you want a more traditional bicycle-style ride for trails, gravel, and rough roads, compare the S1 AMP with Aipas off-road electric bikes.
| Spec | What It Means for Adult Riders |
| 4000W Mid-Drive Motor | Delivers stronger acceleration and better power delivery for dirt tracks, trails, steep climbs, and rough terrain. |
| 255 Nm Torque | Helps with hill starts, loose ground, heavier loads, and high-demand off-road riding. |
| 50 mph Top Speed | Gives the S1 AMP a performance feel closer to an electric dirt bike than a standard commuter ebike. |
| 60V 28Ah Battery | Supports longer outdoor riding sessions and up to 60 miles of electric-only range. |
| Full Suspension | Helps absorb bumps, trail impact, uneven ground, and rough outdoor surfaces. |
| 350 lb Load Capacity | Supports a wider range of adult riders and riding gear. |
| 105 lb Net Weight | Gives the bike a more planted dirt-bike-style feel, but it is not intended to be a lightweight portable commuter ebike. |
| 14×3 Front / 12×3 Rear Tires | Creates a compact dirt-bike-style setup designed for traction, control, and off-road handling. |
| 70° Max Gradient Rating | Shows the bike is built for serious climbing support on steep off-road terrain. |
This is the section that helps users understand the difference between “big numbers” and real riding benefits. It also helps Google connect the product’s specs with electric dirt bike search intent.
The S1 AMP is still part of the Aipas electric bike lineup, but its riding purpose is very different from a standard commuter, folding, or fat tire ebike. It is designed to feel closer to an electric dirt bike for adults.
| Feature | S1 AMP Electric Dirt Bike | Regular Ebike |
| Main Use | Dirt tracks, trails, steep climbs, gravel, outdoor riding | City commuting, casual rides, errands, paved roads |
| Motor | 4000W mid-drive motor | Usually lower-power hub motor |
| Torque | 255 Nm | Often much lower |
| Top Speed | Up to 50 mph | Commonly 20–28 mph |
| Suspension | Front and rear suspension | Varies by model |
| Throttle Feel | Full-twist throttle with dirt-bike-style response | Often thumb or half-twist throttle for casual riding |
| Riding Position | Dirt-bike-style frame and folding footrests | Bicycle-style pedaling position |
| Best Fit | Adult riders who want off-road power and speed | Riders who want practical daily transportation |
If you want a comfortable city ebike, a commuter model may be a better fit. If you want high torque, fast acceleration, full suspension, and dirt-bike-style off-road performance, the S1 AMP is the stronger match.
The S1 AMP is the most performance-focused electric dirt bike in the Aipas lineup. Riders who want to compare it with other Aipas electric bikes can explore the full collection before choosing a model.
Gear up with accessories like the Lighted Cycling Helmet and Off-Road Protective Gear Set to complete your ultimate off-road experience.
| Specification Name | Specification Value |
|---|---|
| Electric-Only Range | 60 Mile |
| Top Speed | 50 Mph |
| Dimensions | 59*28*37(Inch) |
| Max Load Capacity | 350Lbs |
| Ebike Net Weight | 105 Lbs |
| Torque | 255 Nm |
| Front Tire | 14*3.0, 40psi |
| Rear Tire | 12*3.0, 40psi |
| Battery | 60V*28AH IP65 Waterproof |
| Specification Name | Specification Value |
|---|---|
| Display | LCD display |
| Power mode | 1-ECO 2-Sport 3-Turbo |
| Throttle | Full-Twist Throttle |
| Maximum Output | 60V/80A, With Temperature Control Protection. |
| Motor | 4000W mid-drive motor |
| Motor Type | Permanent Magnet Synchronous Motor |
| Peak Efficiency | 95.3% |
| Turn Signals | Rear turn signals |
| Controller Type | Sine wave |
| Specification Name | Specification Value |
|---|---|
| Front Suspension | Aluminum Absorbers |
| Front Suspension | Travel Total Length 23.6" |
| Rear Suspension | Center-Mounted Rear Shock Absorber 10.2" |
| Handlebar | Grip Length 4", Total Length 28" |
| Pedals | Steel folding footrest |
| Rear Sprocket | 420-53T |
| Chain | 420-114 |
| Chassis Surface | Anodic Oxidation |
| Ground Clearance | 9.8" |
| Wheelbase | 43.3" |
A--Total Length: 59″
B--Wheelbase: 43″
C--Ground Clearance: 9.8″
D-- Minimum Seat to Floor: 28″
E --Rear to Tires Clearance: 9.8″
F-- Seat Length: 20″
G --Seat Center to Handlebar: 18″
H--Handlebar Length: 28″
I--Handlebar Height: 37″
J--Fork Length: 23.6″
K--Wheel Diameter: 14″
L--Rear Wheel Diameter: 12″
N--Seat to Footrest Height: 18″
M--Rear Absorber Length: 10.2″
Explore Aipas Ebike lineup, Pick the best ebike for you
| Field name |
Sale Price
$1,199.00
Regular Price
|
Sale Price
$1,148.00
Regular Price
|
Sale Price
$949.00
Regular Price
|
Sale Price
$689.00
Regular Price
|
Sale Price
$839.00
Regular Price
|
|---|---|---|---|---|---|
|
|
|
|
|
| |
| Motor |
4000W
|
1800W
|
1800W
|
750W
|
1500W
|
| Battery |
60V 28Ah
|
48V 17.5Ah
|
48V 17.5Ah
|
48V 12.8Ah
|
48V 12.8Ah
|
| Torque |
255N.m
|
110N.m
|
110N.m
|
55N.m
|
100N.m
|
| Max Range |
60Miles
|
85Miles
|
85Miles
|
62Miles
|
62Miles
|
| Brakes |
Hydraulic Brakes
|
Hydraulic Brakes
|
Disc Brakes
|
Disc Brakes
|
Disc Brakes
|
| Total Length |
59"
|
80"
|
80"
|
66"
|
66"
|
| Handlebar Height |
37"
|
44"
|
44"
|
47"
|
47"
|
Find quick answers to common questions
The price includes shipping insurance, a 1-year warranty, and unlimited technical support. We've also taken care of the 5%–15% sales tax for you—no additional tax will be charged at checkout.
The recommended rider height is 4'2" - 6'0".
We have already assembled 90% of the bike. You just need to tighten the wheel bolts, install the seat, and attach a few small components, and you'll be ready to go.
Since each e-bike is shipped separately, it’s possible that due to the shipping carrier, they may arrive at different times. Please don’t worry. If you have any questions, feel free to contact our customer service department for the latest updates.
Aipas offers a one-year warranty on all e-bikes, for more specific warranties, please check our warranty policy.
Customers are allowed to submit a return request within 14 days of delivery via service@aipasbike.com. For more specific return and refund, pls check our return policy.
Time of arrival includes order processing time and shipping time (3-5 working days).you can check more details on our Shipping Policy Page
Feel free to reach out to us!
