COS GT20 Electric Bike – High Performance Fat Tire E-Bike
Overview
The COS GT20 electric bike combines rugged design, powerful performance, and long-range capabilities, making it ideal for both urban commuting and off-road adventures. With a 1000W motor, 1200Wh battery, dual suspension, and hydraulic brakes, this e-bike offers reliability and comfort across various terrains.
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:
- 80 km in throttle-only mode (pure electricity – Class 2)
- 140 km in pedal-assist mode (Class 1)
Motor & Power
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Motor: 48V Brushless Rear Hub Motor – Rated 1000W / Peak 1500W
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Torque: 80 Nm
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Controller: 48V 28A
Battery & Charging
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Battery: 48V 25Ah Lithium Battery (18650 Cells)
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Energy Capacity: 1200Wh
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Charger: 48V 3A Fast Charger
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Charging Time: 3.5 – 8 Hours
Throttle & Pedal Assist
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Throttle: Grip Twist Throttle
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Pedal Assist: 3 Levels
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Sensor: Speed Sensor
Display
Easy-to-read LCD Display providing real-time riding data and system information.
Frame & Components
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Frame: Hydroformed Triple-Butted 6061-T6 Aluminum Alloy
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Crankset: 46T ED Tooth Plate, 7-speed
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Chain: Anti-rust 7-speed, 1/2" * 3/32"
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Rear Derailleur: Shimano 7-Speed
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Pedals: Aluminum Alloy, with Reflectors – 9/16" Axis
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Handlebar: Split Bar Design – φ32 / φ22 mm, Sand Black
Suspension & Brakes
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Front Suspension: 20" Shoulder Fork, 80mm Travel
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Rear Suspension: 850 lbs Coil Shock, 180mm Travel
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Brakes: Hydraulic Disc Brakes (Double Piston)
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Brake Rotors: 180mm Stainless Steel Discs
Wheels & Tires
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Tires: ARISUN A820 20" × 4.0" Off-Road Tires, 60 TPI
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Reinforcement: Meimeng Tire + PVC lining
Lights & Safety
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Front Light: Classic Angel Eye Headlight – 120 LUX
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Rear Light: LED Taillight
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
Feature Highlights
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High-Powered Motor: 1000W-rated (1500W peak) with 80 Nm torque for powerful climbs and tough terrains.
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Long-Range Samsung Battery: 48V 25Ah (1200Wh) offers up to 140 km in pedal-assist and 80 km in throttle mode.
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Advanced Suspension System: 80mm front + 180mm rear travel ensures smooth ride over rough trails.
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Heavy-Duty Hydraulic Brakes: Double-piston system with 180mm rotors for strong, consistent braking.
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Rugged Fat Tires: 20" × 4.0" ARISUN tires with high traction and durability for all surfaces.
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Smart Display & Control: Intuitive LCD, Shimano 7-speed gears, and ergonomic handlebar for easy handling.
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Classic Style, Modern Tech: Retro Angel Eye headlight and modern performance features in one durable frame.