Product Description
The RFN Rally Pro MK4 74V 12.5kW Electric Motorbike is a serious, full-power RFN electric motor bike engineered for riders who demand instant torque, extreme performance, and uncompromising off-road capability. Built for motocross tracks, trials riding, climbing, and stunt riding, this RFN motorbike delivers raw electric power with professional-grade engineering.
Manufactured by Apollo, one of the world’s leading off-road motorcycle producers, the Rally Pro MK4 benefits from over 20 years of off-road vehicle development. With distribution in more than 75 countries and over 1.5 million units worldwide, Apollo and RFN are recognized as leaders in electric motorbike innovation and reliability.
At the heart of the RFN Rally Pro MK4 motor bike is a 74V LG 21700 lithium-ion battery paired with a permanent magnet synchronous motor, delivering up to 12.5kW peak power. This advanced electric motorbike setup produces explosive acceleration and instant torque, pushing the Rally Pro to speeds of 55–60mph, while maintaining impressive efficiency.
Thanks to its direct-drive chain transmission, the Rally Pro MK4 operates with minimal power loss, increased reliability, and lower maintenance compared to traditional gear or belt systems. In Tortoise Eco Mode, riders can achieve a remarkable range of up to 100–120 miles, making this RFN electric motorbike ideal for long riding sessions.
The gearing is intentionally configured for instant torque rather than extreme top speed, delivering short, aggressive power bursts. When switched into Rocket Mode, the motor delivers a constant 12.5kW output, making this motor bike exceptionally capable for hill climbs, jumps, and technical terrain.
The MK4 upgrade introduces a new reinforced swingarm and rear linkage, improved front USD suspension, and powerful DOT4 hydraulic brakes with floating discs. A 2-level regenerative braking system further enhances control while improving battery efficiency.
A standout feature of the RFN Rally Pro MK4 electric motorbike is the removable seat, allowing the bike to be quickly converted for trials riding, climbing, or stunt use, making it one of the most versatile RFN motorbikes available.
Supplied by WHEELIEWWORLD, a trusted RFN electric motorbike dealer in Aberdeenshire, Scotland, this machine is backed by expert advice, spare parts availability, and professional after-sales support.
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Key Features
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✅ RFN High-Performance Electric Motorbike
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✅ 74V System with 12.5kW Peak Power
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✅ LG 21700 Lithium-Ion Battery
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✅ Direct-Drive Chain Transmission
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✅ Up to 60mph Top Speed
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✅ Up to 100–120 Miles Range (Eco Mode)
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✅ Rocket Mode for Constant Full Power
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✅ MK4 Reinforced Swingarm & Suspension
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✅ DOT4 4-Piston Hydraulic Brakes
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✅ Removable Seat for Trials & Stunt Riding
Offers & Benefits
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Fast Delivery across the UK & Scotland
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6-Month Warranty on parts
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Finance Options available for flexible payments
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Trusted Bike Dealer in Aberdeenshire
Specifications (SPECS)
Motor & Power System
| Specification |
Details |
| Motor Type |
RFN Permanent Magnet Synchronous |
| Throttle |
Electric Twist Throttle |
| Peak Power |
12.5kW |
| Nominal Power |
7.8kW |
| Battery Voltage |
74V (84V DC Peak) |
| Battery Capacity |
43Ah |
| Battery Type |
LG 21700 Li-Ion |
| Battery Energy |
3.182 kWh |
| Peak Torque |
61Nm (Motor) / 270Nm (Wheel) |
Performance
| Specification |
Details |
| Top Speed |
Up to 60mph (13T/58T sprocket) |
| Range |
Up to 100–120 miles (Eco @ 25mph) |
| Gear Ratio |
4.46 (13T / 58T) |
| Transmission Drive |
Direct-Drive Chain |
| Speedometer |
LCD Digital Display |
Chassis & Suspension
| Specification |
Details |
| Frame Material |
6082 Aluminium Frame |
| Swingarm |
New Reinforced MK4 Design |
| Front Suspension |
RFN USD Hydraulic 43mm – 210mm Stroke |
| Rear Suspension |
RFN 243mm 350LB – 51.5mm Stroke |
Brakes & Wheels
| Specification |
Details |
| Front Brake |
RFN 4-Piston DOT4 / 210mm Floating Disc |
| Rear Brake |
RFN DOT4 Hydraulic |
| Brake Regen |
2-Level Adjustment (On / Off) |
| Front Tyre |
CST CM721 – 70/100-19 |
| Rear Tyre |
CST CM722 – 90/100-18 |
Dimensions & Weight
| Specification |
Details |
| Net Weight |
68kg |
| Max Rider Weight |
120kg |
| Wheelbase |
1330mm |
| Seat Height |
860mm |
Important Notes
Want this bike delivered assembled? Choose our B2R (built to race) service in the check out and our team will get to work.
Why Buy from WHEELIEWWORLD
WHEELIEWWORLD is a specialist RFN electric motorbike and off-road motor bike dealer in Aberdeenshire, Scotland, supplying high-performance electric motocross bikes, trials bikes, and off-road machines. We provide expert guidance, spare parts, upgrades, servicing, and long-term support.
If you’re looking for a high-power RFN electric motorbike that delivers instant torque, extreme range, and race-ready engineering, the RFN Rally Pro MK4 74V 12.5kW from WHEELIEWWORLD is built to dominate.