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FREESKY Rocky Pro A-320 Step-Through Electric Bike – 2500W Peak Fat Tyre

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FREESKY Rocky Pro A-320 Electric Bike – 2500W Peak Step-Through Fat Tyre E-Bike

The FREESKY Rocky Pro A-320 Electric Bike is a high-power step-through fat-tyre electric bike built for comfort, stability, and strong off-road performance. Featuring a 2500W peak brushless rear hub motor, 120 Nm torque, torque-sensor pedal assist, and a 48V 25Ah Samsung/LG-cell lithium battery, it delivers responsive support across varied Terrain.

Built around an upgraded 6061 aluminium step-through frame, the Rocky Pro A-320 combines 20 x 4.0-inch fat tyres, three-point suspension, Shimano 8-speed gearing, a thumb throttle, an LCD colour display, steering lights, and 180mm 4-piston hydraulic brakes for a capable and confidence-inspiring riding setup.

⚡ Power & Performance

The 2500W peak brushless motor delivers strong acceleration and climbing support, with 120 Nm of torque for demanding Terrain. A torque sensor provides a smoother, more natural pedal-assist response, while 0–5 pedal-assist levels, a thumb throttle, a 48V /22A controller, and a Shimano 8-speed rear derailleur give riders flexible control.

🔋 Battery & Range

The 48V 25Ah Samsung/LG cell lithium battery delivers high capacity for extended use. The estimated range is 72–144 km (45–90 miles) under suitable pedal-assist conditions.

Range Notice:
Range figures are estimates and may vary depending on rider weight, Terrain, tyre pressure, assist level, temperature, motor output and riding style.

🛞 Tyres, Suspension & Ride Comfort

The 20 x 4.0-inch fat tyres provide a wide contact patch for grip, cushioning and stability. The Rocky Pro A-320 uses a three-point suspension system with a downhill full-suspension front fork, rear suspension and shock-absorbing comfort support to help smooth out rougher surfaces.

💡 Controls, Display & Lighting

The LCD colour display shows key ride information including pedal-assist level, headlight status, speed, battery power and mileage. Integrated handlebar steering lights make it easier to signal direction, while the thumb throttle is positioned for easy access.

🛡️ Braking, Safety & Build Quality

The Rocky Pro A-320 is equipped with 180mm 4-piston hydraulic brakes for strong stopping power and controlled braking feel. Its upgraded 6061 aluminium frame, KMC chain, adjustable heavy-duty aluminium kickstand and reinforced component set support dependable riding performance.

The bike is listed as UL2849 certified, and the battery system is tested to meet UL-2271 safety requirements.

🔐 Security & Smart Features

The torque sensor helps deliver responsive power based on rider input, while the LCD colour display provides clear visibility of key riding data. The removable battery design supports convenient charging and storage away from the bike.

🔌 Charger & Power Specification

The Rocky Pro A-320 is supplied with a 3A smart charger for the 48V battery system. A UK standard power cable is included.

📊 Technical Specifications

Brand FREESKY
Model Rocky Pro A-320
Product Type High-power step-through fat tyre electric bike
Frame Style Step-through
Motor Brushless rear hub motor
Peak Motor Power 2500W peak output
Torque 120Nm
Controller 48V / 22A
Sensor Type Torque sensor
Pedal Assist 0–5 levels
Throttle Thumb throttle
Battery 48V 25Ah Samsung / LG cell lithium battery
Estimated Range 72–144 km / 45–90 miles
Charger 3A smart charger
Transmission Shimano 8-speed rear derailleur
Chain KMC chain
Tyres 20 x 4.0-inch fat tyres
Suspension Three-point suspension system
Front Fork Downhill full suspension fork
Rear Suspension Dual spring rear suspension
Brakes 180mm 4-piston hydraulic brakes
Frame Material Upgraded 6061 aluminium
Display LCD colour display
Display Functions Pedal assist level, headlight status, speed, battery power and mileage
Lighting Front headlight and handlebar-integrated steering lights
Kickstand Adjustable heavy-duty aluminium kickstand
Seatpost 30.9 x 300mm alloy seatpost
Bike Weight Approx. 35 kg
Maximum Load 136 kg
Total Length 171.9 cm
Wheelbase 116.3 cm
Total Height 103.9 cm
Seat Height 78.0–94.0 cm
Reach 47.0 cm
Front Centre 71.6 cm
Chain Stay Length 45.0 cm
Rider Height 154.9–180.3 cm
Inseam Range 63.5–88.9 cm
Certification UL2849 certified; battery tested to UL-2271
Colour Options Black, Green, Blue, Red
In the Box Electric bike, battery, charger, power cable, pedals, multi-tool, user manual, mudguards

✅ Why Buy From Electric Scooters London?

Electric Scooters London is an authorised FREESKY reseller and authorised FREESKY repair centre in the UK, offering expert product advice, UK-based support and dependable after-sales service. We supply carefully selected electric bikes with professional guidance, servicing and long-term ownership support.