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Product Description

Eunorau | DEFENDER-S

The Defender S is a full-suspension fat-tire electric bike built for stable, comfortable rides on mixed terrain. It pairs dual 750W Bafang motors with long-range Samsung batteries and a rugged frame so you get powerful acceleration, confident handling, and the option to extend range with a second battery.

Benefits

  • Go farther between charges — dual-battery option delivers extended range for long rides and commuting.
  • Confident control on rough ground — wide 26 x 4.0 tires and full suspension smooth bumps and improve traction.
  • Easy, responsive stops — hydraulic disc brakes with motor cut-off provide safer braking under power.
  • Flexible use — speed is limited to road-legal 15.5 mph (25 km/h) but can be unlocked for off-road riding.
  • Comfort-focused setup — adjustable stem, comfortable saddle, and quality suspension reduce rider fatigue.

Features

  • Dual 48V 750W Bafang fat-tire hub motors (front and rear) for strong, balanced propulsion.
  • Dual-battery design available — mix-and-match battery capacity for longer trips.
  • Full suspension frame (Aluminum Alloy 6061) with RST 75mm front fork and KS rear shock for smoother rides.
  • Thumb throttle plus pedal-assist via a colorful C3 display with forward/reverse motor switch.
  • Shimano 9-speed drivetrain (Altus/Alivio) with 44T aluminum chainring for a wide gear range.
  • LED front headlight and taillight for visibility in low light.
  • Hydraulic disc brakes (180mm front and rear) with motor cut-off sensor in the brake levers.

Specifications

  • Motors: Front 48V 750W + Rear 48V 750W Bafang fat-tire motors (each ~80 N·m torque).
  • Battery options: Standard and optional Samsung lithium-ion cells. Typical configurations include 48V 15Ah (standard) or 48V 17Ah Samsung; dual-battery option (48V 17Ah + second 17Ah) for extended range.
  • Estimated range: Up to 80+ miles with dual 17Ah Samsung batteries (actual range varies by rider weight, terrain, assist level, and conditions).
  • Charging time: 4–6 hours (per battery).
  • Battery type: Lithium-ion (Samsung cells).
  • Frame: Aluminum Alloy 6061, full suspension.
  • Maximum speed: 15.5 mph (25 km/h) when speed-limited for on-road legal use (display can be adjusted for off-road use; manufacturer not liable for illegal on-road configurations).
  • Front fork: RST GUIDE, 75 mm travel.
  • Rear shock: KS 582, 165 mm travel.
  • Box dimensions (packaged): 170 cm L x 32.5 cm W x 85 cm H.
  • Throttle: Thumb throttle.
  • Display: New C3 color display with forward/reverse motor switch.
  • Lighting: Front LED headlight; taillight included.
  • Rear rack: Not included.
  • Fenders: Not included.
  • Rims: 26-inch black alloy.
  • Spokes: Stainless steel.
  • Tires: Kenda Sport 26 x 4.0 fat tires.
  • Gear shifting: Shimano Altus/Alivio 9-speed drivetrain and shifter.
  • Sprocket/chainring: 44T aluminum chain wheel with protection.
  • Brakes: Eunorau design hydraulic disc brakes, 180 mm front and rear, with motor cut-off sensor in brake handles.
  • Handlebar: Adjustable stem, matte black finish.
  • Saddle: Comfortable saddle included.
  • Pedals: High-quality nylon pedals.
  • Manual and basic tool kit: Included.
  • Note on legal use: Bikes are shipped with speed and power limits set to 15.5 mph / 25 km/h for on-road legality. Riders may change settings for off-road use; the manufacturer is not responsible for bikes operated illegally on public roads.
  • --- This Variant ---
  • Select Frame Size: 17"
  • Color: Gray

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