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 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.
This electric bike exceeds the UK Electrically Assisted Pedal Cycle (EAPC) limits due to its motor power and/or assisted speed capability. Under UK law, e-bikes over 250W or assisting 15.5 mph are classified as motor vehicles. They cannot be used on public roads, cycle lanes, pavements or other public spaces without full type approval, DVLA registration, insurance and a valid driving licence.
This model is supplied strictly for off-road/private-land use only, with the landowner's explicit permission. Use on publicly accessible land is not permitted.
Images or videos may show usage outside the UK and are for illustration only.
By purchasing and using this product, the customer accepts full responsibility and agrees to hold Electric Scooters London harmless from any claims, penalties, or damages arising from misuse.