EUNORAU DEFENDER-S 2.0 — Dual-Motor Full-Suspension Fat-Tire E-Bike
Built for challenging terrain and all-season exploration, the DEFENDER-S 2.0 combines dual-motor traction, responsive torque-sensing assist, and a four-bar full-suspension frame.
Two 750W hub motors provide confident all-wheel-drive support, while the 48V 17Ah battery supplies the energy needed for demanding rides. Wide 26" × 4.0" fat tires, hydraulic disc brakes, and a Shimano 9-speed drivetrain help you stay in control across hills, loose surfaces, and uneven trails.
Dual-Motor All-Wheel Drive
A 750W hub motor at each wheel provides a combined rated motor output of 1,500W. Power is delivered to both the front and rear wheels, improving traction and giving you additional support when climbing or riding over loose terrain.
Natural Torque-Sensing Assist
The torque sensor responds to how hard you pedal and adjusts motor assistance accordingly. Pedal lightly for gentle support or apply more pressure when you need additional power, creating a smoother and more intuitive riding experience.
Four-Bar Full Suspension
The four-bar suspension design helps isolate bumps and maintain better wheel contact over uneven terrain. A suspension fork at the front and an air shock at the rear work together to improve comfort, stability, and control.
48V 17Ah Battery
The 48V 17Ah battery uses high-capacity cells and is designed to support the demands of the dual-motor system.
Estimated Range: Up to 40 miles / 64 km per charge
26" × 4.0" Fat-Tire Stability
Wide fat tires provide a larger contact area for enhanced grip and stability. They help the bike maintain control across gravel, dirt, sand, snow, and other loose or uneven surfaces.
Smooth 9-Speed Shifting
The Shimano 9-speed drivetrain gives you a practical range of gears for climbing, cruising, and adapting to changing terrain. The handlebar-mounted shifter makes gear changes quick and convenient.
Confident Hydraulic Braking
Front and rear hydraulic disc brakes are paired with large 203mm rotors for controlled stopping performance. Integrated motor cut-off sensors immediately interrupt motor assistance when either brake lever is engaged.
Clear, Connected Controls
The handlebar-mounted display provides convenient access to pedal-assist and speed settings. Bluetooth functionality supports compatible connected features, while the integrated front light and horn add everyday convenience.
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Dual-Motor All-Wheel Drive
A 750W hub motor at each wheel provides a combined rated motor output of 1,500W. Power is delivered to both the front and rear wheels, improving traction and giving you additional support when climbing or riding over loose terrain.
Natural Torque-Sensing Assist
The torque sensor responds to how hard you pedal and adjusts motor assistance accordingly. Pedal lightly for gentle support or apply more pressure when you need additional power, creating a smoother and more intuitive riding experience.
Four-Bar Full Suspension
The four-bar suspension design helps isolate bumps and maintain better wheel contact over uneven terrain. A suspension fork at the front and an air shock at the rear work together to improve comfort, stability, and control.
48V 17Ah Battery
The 48V 17Ah battery uses high-capacity cells and is designed to support the demands of the dual-motor system.
Estimated Range: Up to 40 miles / 64 km per charge
26" × 4.0" Fat-Tire Stability
Wide fat tires provide a larger contact area for enhanced grip and stability. They help the bike maintain control across gravel, dirt, sand, snow, and other loose or uneven surfaces.
Smooth 9-Speed Shifting
The Shimano 9-speed drivetrain gives you a practical range of gears for climbing, cruising, and adapting to changing terrain. The handlebar-mounted shifter makes gear changes quick and convenient.
Confident Hydraulic Braking
Front and rear hydraulic disc brakes are paired with large 203mm rotors for controlled stopping performance. Integrated motor cut-off sensors immediately interrupt motor assistance when either brake lever is engaged.
Clear, Connected Controls
The handlebar-mounted display provides convenient access to pedal-assist and speed settings. Bluetooth functionality supports compatible connected features, while the integrated front light and horn add everyday convenience.
Specs
Technical Specifications
Electrical System
- Motors: Dual 48V 750W hub motors
- Motor Positions: Front and rear
- Drive System: All-wheel drive
- Combined Rated Motor Output: 1,500W
- Maximum Torque: 85 N·m
- Controller: 48V 25A dual-drive controller
- Pedal Assist Sensor: Bottom-bracket torque sensor
- Battery: 48V 17Ah
- Battery Management System: 50A BMS
- Charger: 54.6V 2A
- Charging Time: Approximately 6–8 hours
- Display: MINI TOUCH display with Bluetooth functionality
Performance and Capacity
- Power-On Setting: Manufacturer-defined Class 2 mode
- Class 2 Speed Setting: Up to 20 mph / 32 km/h
- Manufacturer-Defined Class 4 Setting: Up to 28 mph / approximately 45 km/h
- Estimated Range: Up to 40 miles / 64 km per charge
- Maximum Load: 300 lb / 136 kg
- Net Weight: 89.3 lb / 40.50 kg
Frame and Suspension
- Frame: 6061 aluminum four-bar full-suspension frame
- Wheel Size: 26"
- Front Fork: RST GUIDE
- Front Suspension Travel: 75mm
- Fork Adjustment: Mechanical lockout
- Rear Shock: AOS01 air shock
- Rear Shock Size: 165mm eye-to-eye
Drivetrain
- Drivetrain: Shimano CUES 1×9-speed
- Shifter: Shimano CUES SL-U4000-9R RAPIDFIRE PLUS
- Rear Derailleur: Shimano CUES RD-U3020-SGS
- Cassette: Shimano CUES CS-LG300-9, 11–36T
- Chainring: 42T
- Crank Length: 170mm
Brakes
- Brake Type: Front and rear hydraulic disc brakes
- Safety Function: Integrated motor cut-off sensors
- Front Rotor: 203mm
- Rear Rotor: 203mm
Wheels and Tires
- Tires: 26" × 4.0"
- Rims: 26" × 4.0" 6061 aluminum rims
- Spokes: 12-gauge, 36-hole
Cockpit and Equipment
- Handlebar: 700mm wide, 25mm rise
- Stem: 105mm aluminum stem
- Grips: 130mm lock-on grips
- Seatpost: 31.6 × 280mm aluminum
- Pedals: 9/16" folding pedals
- Front Equipment: LED light with horn
- Rear Safety Equipment: Red reflector
- Kickstand: Adjustable aluminum kickstand
Product Highlights
Hydraulic Disc Brakes
26 × 4.0-Inch Fat Tires
Color Display + Bluetooth
Shimano 9-Speed
