COS GT20 PRO Electric Bike – Dual Motor, Long-Range Fat Tire E-Bike
Overview
The COS GT20 PRO is a powerhouse electric bike equipped with dual motors, dual batteries, and a rugged frame. Designed for long-distance rides and extreme terrain, it delivers exceptional performance, comfort, and control. With a peak output of 3000W and up to 233 km range, this e-bike is built for serious riders.
Top Speed & Range
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Top Speed: 25 km/h (Unlockable for off-road use – Class 2/3)
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Range:
- 128 km (Throttle only – Class 2)
- 233 km (Pedal Assist – Class 1)
Motor & Power
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Motor: 48V Brushless Dual Rear Hub Motors (Rated 1000W + 1000W / Peak 3000W total)
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Total Torque: 160 Nm
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Controller: 48V 28A
Battery & Charging
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Battery: Dual 48V Lithium Batteries (25Ah + 15Ah), 18650 cells
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Total Energy: 1920Wh
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Charger: 48V 3A
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Charging Time: 3.5 – 8 hours
Throttle & Pedal Assist
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Throttle: Thumb Throttle
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Pedal Assist: 3 Levels
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Sensors: Speed Sensor
Display
Easy-to-read LCD Display for real-time ride and system information.
Frame & Suspension
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Frame: Hydroformed Triple-Butted 6061-T6 Aluminum Alloy
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Front Suspension: 20" Shoulder Fork, 80mm Travel
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Rear Suspension: 850 lbs Coil Shock, 180mm Travel
Wheels & Tires
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Tires: ARISUN A820 20" × 4.0" Off-road Tires
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Reinforcement: Meimeng Tire + PVC lining
Brakes
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Braking System: Hydraulic Disc Brakes (Dual Piston)
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Brake Rotors: 180mm Stainless Steel Discs
Drivetrain & Components
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Crank: 46T 7-Speed ED Tooth Plate
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Chain: 7-speed, Anti-rust
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Rear Derailleur: Shimano 7-Speed
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Pedals: Aluminum Alloy with Reflectors
Lights & Visibility
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Front Light: Classic Angel Eye – 120 LUX
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Rear Light: LED
Dimensions & Weight
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Seat Height: 83 cm
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Bike Height: 106 cm
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Wheelbase: 121.5 cm
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Handlebar Width: 69 cm
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Bike Weight: ≥ 45 kg (Including battery)
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Max Load: 150 kg
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Recommended Safe Load: 120 kg
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Rider Height Compatibility: 155 – 195 cm
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Bike Size (L×W×H): 180 × 69 × 106 cm
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Package Size: 151 × 35 × 92 cm
Key Highlights
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Extreme Range: Dual battery system provides up to 233 km in pedal-assist mode – ideal for long-distance rides.
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Dual Motor Power: Combined 3000W peak output with 160 Nm torque offers superior climbing and acceleration.
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Comfort & Suspension: Front and rear suspension absorb impacts for a smooth, stable ride on rough surfaces.
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Advanced Braking: Dual-piston hydraulic system with 180mm rotors ensures strong, safe braking.
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Ride Control: LCD display, speed sensor, and 3-level PAS allow for seamless and smart control.
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Premium Build: Retro headlight, Shimano drivetrain, and 4.0" ARISUN tires for maximum style and functionality.