Euybike S4 Electric Bike 1000W Motor, 48V 25Ah Fat Tire E-Bike
$699.99 Original price was: $699.99.$570.99Current price is: $570.99.

Euybike S4 Electric Bike is a moped-style fat-tire e-bike with a 1000W rear hub motor and 48V 25Ah lithium battery. It features 20 x 4-inch tires, dual suspension, hydraulic disc brakes, and a 7-speed drivetrain. In addition, the supplied specifications list a top speed of up to 28 MPH.
1000W Rear Hub Motor
The S4 uses a 1000W rear hub motor with a 48V/25A controller. Moreover, the supplied specifications list maximum torque at 96 Nm.
48V 25Ah Battery
A 48V 25Ah lithium battery supplies power to the bike. The listed battery energy is 1200Wh. In addition, the battery weighs approximately 9.3 lbs.
Up to 100-Mile Range
The supplied information lists a maximum range of up to 100 miles. However, actual range can vary with pedal-assist level, speed, rider weight, terrain, temperature, and battery condition.
Up to 28 MPH
The listed top speed is up to 28 MPH. Actual speed can vary depending on operating conditions and bike configuration.
20 x 4-Inch Fat Tires
The S4 uses 20 x 4-inch fat tires with spoke wheels. Therefore, the bike combines a compact wheel diameter with a wide tire profile.
Dual Suspension
A dual-shock configuration forms part of the moped-style design. In addition, the front uses a dual-crown suspension fork with lockout and adjustment.
Hydraulic Disc Brakes
The supplied specifications list Logan 180 mm hydraulic brakes. Furthermore, the brake levers include a motor cutoff switch.
Five Pedal-Assist Levels
The bike provides five pedal-assist levels. Meanwhile, a twist throttle provides another method of controlling electric motor assistance.
Shimano 7-Speed Drivetrain
A Shimano 7-speed gear system provides multiple mechanical gear selections. The supplied configuration also lists a KMC chain.
LCD Display
An LCD display provides access to compatible riding information and electric-bike settings.
400 lb Maximum Load
The supplied specifications list a maximum load of 400 lbs. Recommended rider height is listed from 5 ft 7 in to 6 ft 5 in.
Integrated LED Light
A 48V LED front light is included. In addition, the pedals feature reflectors as part of the supplied configuration.
Key Specifications
• Brand: EUY / Euybike
• Model: S4
• Product type: Moped-style fat-tire electric bike
• Motor: 1000W rear hub motor
• Controller: 48V / 25A
• Maximum torque: 96 Nm
• Battery: 48V 25Ah lithium battery
• Battery energy: 1200Wh
• Battery weight: 9.3 lbs
• Listed maximum range: Up to 100 miles
• Listed top speed: Up to 28 MPH
• Tires: 20 x 4 inches
• Wheels: Spoke wheels
• Pedal assist: 5 levels
• Throttle: Twist throttle
• Drivetrain: Shimano 7-speed
• Brakes: Logan 180 mm hydraulic brakes
• Front fork: Dual-crown suspension with adjustment and lockout
• Display: LCD
• Maximum load: 400 lbs
• Recommended rider height: 5 ft 7 in–6 ft 5 in
• Weight with battery: 76 lbs
• Weight without battery: 66.8 lbs
• Front light: 48V LED
• Saddle: PU seat with shock-absorbing design
• Handlebar: Height adjustable
• Fenders: Plastic
1. Order Processing Time
Orders are prepared and processed before being handed over for delivery.
- Processing Time: 1–2 business days (Monday to Friday)
- Order Cutoff Time: 5:00 PM (PT)
- Orders placed after the cutoff time, on weekends, or on public holidays will begin processing on the next business day.
2. Shipping Time
After your order has been processed and dispatched:
- Estimated Transit Time: 4–6 business days (Monday to Friday)
- Estimated Total Delivery Time: 5–8 business days, including processing
- Shipping Cost: Free
Delivery times are estimates and may occasionally be affected by carrier delays, weather conditions, holidays, or other circumstances outside our reasonable control.
3. Order Tracking
Tracking information is provided for shipped orders. Once your order has been dispatched, you will receive tracking details that can be used to monitor the delivery status of your package.
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