RFN Warrior SX-E5 Youth Electric Dirt Bike | 5kW, 40 MPH

RFN Warrior SX-E5 Youth Electric Dirt Bike

The RFN Warrior SX-E5 is a 50cc-equivalent electric dirt bike built specifically for young riders who are ready for more power, capability, and room to grow. Combining a 5kW peak-power electric motor, adjustable performance settings, and youth-focused ergonomics, the SX-E5 delivers real dirt bike performance in a lightweight, adaptable platform.

With a top speed of up to 37.5–40 MPH, the SX-E5 offers plenty of performance while giving parents greater control over the riding experience. Adjustable ride modes and app-based settings allow the bike's performance to be tailored to the rider's experience and skill level.

One of the SX-E5's standout features is its adaptive frame design. The adjustable rear subframe allows the seat height to be changed from approximately 24 to 26 inches, helping the bike accommodate young riders as they grow. Fully adjustable suspension, hydraulic disc brakes, and a 12-inch front/10-inch rear wheel setup complete a package designed for confidence and control on the trail.

Key Features

• 5kW peak-power electric motor with instant torque
• Top speed: Up to 37.5–40 MPH (60 km/h)
• Range: Approximately 18–28 miles (up to 40 km) per charge, depending on riding conditions and use
• 48V lithium-ion battery with quick-swap capability
• Charging time: Approximately 3–5 hours
• Adjustable ride modes with app-based controls
• BIK500 high-strength lightweight steel frame
• Adjustable rear subframe to accommodate growing riders
• Adjustable seat height: Approximately 24–26 inches
• Fully adjustable front and rear suspension
• Hydraulic disc brakes
• 12-inch front / 10-inch rear wheels
• Approximate weight: 106 lbs (47 kg)
• Designed for youth riders and pre-teens, with fit depending on rider size, experience, and ability

Built to Grow With Your Rider

Instead of being quickly outgrown like many youth dirt bikes, the RFN Warrior SX-E5 features adjustable ergonomics that allow the bike to adapt as the rider gets taller and more experienced. Combined with configurable power delivery, this makes the SX-E5 an excellent progression bike for young riders developing their off-road skills.

With quiet electric operation, instant power, capable suspension, and no gas engine maintenance, the RFN Warrior SX-E5 brings modern electric performance to the youth dirt bike category.