Review: Euy Bike S4 Moped Style Electric Bike

Key Features

• Battery Pack: 25 amp hour
• Motor: 1000 watt hub motor
• Suspension: Full suspension, dual crown fork
• Price Point: Relatively low
• Torque: 96 newton meters

Unboxing & Initial Impressions

• Surprised by 1000 watt motor (expected 750 watt)
• Seat looks comfy, has a tail light
• Hidden seat extension
• Controller not immediately visible

Battery & Controller

• Massive battery: 48 volt 25 amp hour (held by zip ties)
• Controller built into battery holder: 23-25 amp (1200 watts peak power)

Components

• Wheels & Tires:
  • 20-inch wheels, 4-inch wide Kenda tires
  • Red accents
  • 160mm disc brakes (drilled & slotted)
• Brakes: Logan hydraulic disc brakes
• Handlebars: BMX style with ergonomic hand grip, hydraulic disc brakes, and 7-speed shifter
• Display: Basic, shows pedal assist levels, current, time, odometer, trip, battery voltage, and percentage
• Charger: 2 amp charger (can upgrade to a stronger one)

Assembly & First Ride Impressions

• Assembly notes: battery took a long time to charge
• Display very basic but functional
• Initial tests: strong power (up to 34 mph), good brakes, loud horn, bright headlight
• Derailleur setting issue but fixed easily

Riding Experience

• Size suitable for adults
• Full suspension effective off-road
• Comfortable ride, especially for taller riders
• Pedal assist has a notable lag; throttle response immediate

On-Road Performance

• Good hill climbing ability, solid acceleration
• Strong showing in 20% hill grade test
• Smooth and effective hydraulic brakes

Off-Road Performance

• Handled off-road conditions well, full suspension is effective

Range & Battery Performance

• 5 miles intense riding: Read 52 volts (78-83%)
• Claims of 75 miles range (conservative under heavy use)
• After intense riding, strong charge remained

Final Thoughts

• Pros:
  • Good performance for the price
  • Full suspension
  • Large battery and powerful motor
• Cons:
  • Limited throttle assist on zero pedal assist
  • Handle grips not fixed, kickstand placement issue
• Overall: Recommend considering its price-to-performance ratio and features

Conclusion

• Link to purchase available in the video description for those interested