A
Acgocrazy Amazing bike, good size for bigger riders
Product highlights
Motor
Mid-Drive 3200 W Peak
Range
Up to 100 Miles
Fat Tire
17x2.47"
Battery
48V 28Ah
Brakes
Hydraulic Brake
Top Speed
28Mph
SM4 Electric Dirt Bike Built for Confident Off-Road Riding
(Extra $100 Off)
A lightweight electric motorcycle designed for new and confident riders
$1,399.00
Product highlights
Motor
Mid-Drive 3200 W Peak
Range
Up to 100 Miles
Fat Tire
17x2.47"
Battery
48V 28Ah
Brakes
Hydraulic Brake
Top Speed
28Mph
Ships from California, USA
- Fast & Free Domestic Shipping
-
Order Processing: 1–2 business days.
Shipping Time: 1–5 business days.
Delivered within 2–7 business days (48 contiguous United States). - Receive a confirmation email + tracking once shipped.
Size & Fit
Technical Specifications
PERFORMANCE
Peak Power
3200W
Max Torque
170Nm
Top Speed
Up to 28 MPH
ENERGY
Battery Pack
48V 28Ah LFP
Max Range
Up to 100 Miles
Charging
8 - 9 Hours
CHASSIS
Tire Specs
2.47 x 17"
Braking
Hydraulic (Liquid Cooled)
Suspension
Pro-Grade Full Suspension
DIMENSIONS
Size (L*W*H)
70 x 27.5 x 39"
Net Weight
134 lbs
Max Payload
330 lbs
Pairs well with
SM4 Electric Dirt Bike Built for Confident Off-Road Riding
Black
$1,399.00
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
-
Shipping Information
Use this text to answer questions in as much detail as possible for your customers.
-
Customer Support
Use this text to answer questions in as much detail as possible for your customers.
-
FAQ’s
Use this text to answer questions in as much detail as possible for your customers.
-
Contact Us
Use this text to answer questions in as much detail as possible for your customers.
Designed for Teens & Young Riders
The SM4 electric moped bike is built for teenagers and young adults who want a safe,powerful, and confidence-inspiring riding experience.
- Teen riders transitioning from bicycles
- Young riders learning off-road control
- Short-distance commuting & weekend riding
- Parents seeking safety-focused performance
3200W Peak Motor with
High Torque Control
- 48V High-output performance
- 170Nm max torque for rapid acceleration
- Top speed up to 28 MPH
Unlike oversized adult dirt bikes, the SM4 Pro delivers strong, controlled torque.
48V 28Ah Long-Range
LFP Battery
- Up to 100 miles per charge
- High-safety LFP battery chemistry
- Removable & protected by smart BMS
Designed for longer exploration without the need for frequent charging.
Pro-Grade Chassis &
330 lbs Payload
- Full suspension system absorbs heavy shocks
- 2.47 x 17" all-terrain stability tires
- Hydraulic liquid-cooled braking system
The Main Features
Precision Control Cockpit
Master every trail with the SM4 Pro's ergonomic handlebar, featuring an integrated twist throttle and high-brightness LCD for real-time tracking.
Laser-Focus LED Headlight
Piercing through the darkest nights, our signature ultra-bright headlight offers an extended beam pattern for safer high-speed exploration.
Off-Road Dual Suspension
The heavy-duty hydraulic spring system provides superior shock absorption and stability on rocks, roots, and ruts for a professional ride.
Intelligent Safety Braking
Safety is non-negotiable. Our ultra-bright LED rear system flashes instantly upon deceleration, keeping you visible to all surrounding traffic.
Ergonomic Memory Saddle
Featuring high-density memory foam with a pressure-relief channel, it offers elite-level support and luxury comfort for long-distance touring.
Adventure-Ready Utility
Maximize your range with our reinforced frame-mounted cage, designed for quick hydration or carrying essential gear during 100-mile rides.
Model Comparison
Compare the high-performance SM4 ebike motor with the fat tire SM2 ebike.
| Motor Power | 3200W High Output | 4000W Peak |
| Battery System | 48V 28Ah | 52V 23Ah |
| Max Torque | 170Nm | 160Nm |
| Tire Size | 2.47 x 17" Off-road | 4.0 x 20" Fat Tire |
| Max Range | 50-100 Miles | 30-100 Miles |
| Top Speed | Up to 28 MPH | 34-38 MPH |
| Charging Time | 8-9 Hours | 10 Hours |
| Waterproof | IP54 + BMS Protection | IP54 |
| Suspension | Pro Full Suspension | Full Suspension |
Full Specifications
Detailed technical data for SM4 Pro flagship model.
View All
Geometry & Sizing
Ergonomic design for control.
View Details
What's in the Box
Standard items included.
Check List
FAQs
Please read our FAQs page to find out more.
Can adults ride the SM4?
Yes.
While the SM4 is designed with teens in mind, its moderate top speed and stable frame make itsuitable for adults as well -especially those who prefer a safer, less aggressive riding experience.
Many parents choose the SM4 not only for their kids, but also enjoy riding it themselves.
Is the SM4 too slow for adults?
Not at all.
The SM4 offers enough power for fun off-road riding, without the extreme speed that can feelintimidating or unsafe. It's perfect for:
. Casual trail riding
. Backyard or private land use
. Learning off-road skills
. Family riding sessions
Why is a lower top speed actually better?
A controlled top speed means:
Safer learning curve
Less risk for younger riders. Easier handling for adults. Reduced maintenance stress. More confidence on uneven terrain
This makes the SM4 a shared family-friendly electric dirt bike.
Who Is SM4 Best For?
✔ Teen riders learning off-road control
✔ Adults who prefer safer, manageable speed
✔ Parents looking for a shared family ride
✔ Beginners transitioning from bicycles to e-bikes
✔ Riders who value control over raw speed
You may also like
Vendor:seemoonebike
Motor
Dual motor 4000 W Peak
Top Speed
38 MPH
Range
Up to 105 Miles
Fat Tire
26x4.0"
Battery
52V 20Ah
Brakes
Hydraulic Brake
Vendor:seemoonebike
Fat Tire
20x4.0"
Motor
Dual motor
Brakes
Hydraulic Brake
Range
Up to 100 Miles
Battery
52V
Top Speed
28 MPH
Vendor:seemoonebike
Motor
Dual Motor 4000 W Peak
Battery
52V 20Ah
Fat Tire
26x4.0"
Range
Up to 100 Miles
Top Speed
32-36 MPH
Brakes
Hydraulic Brake