RFN Warrior SX-E400 400W Electric Bike - Orange Blue
£499.00
£599.00
£100 off
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Description
RFN Warrior SX-E400 – Quick Overview
Best for: young riders aged around 3–6 years old.
Motor: 36V 250W brushless motor, 400W peak.
Seat height: 46cm.
Speed settings: 5mph / 8mph / 15.5mph.
Our view: a proper first electric MX-style bike for young riders who want motorbike looks with controlled, confidence-building power.
The RFN Warrior SX-E400 is a true first electric MX-style bike for younger riders who want real motorbike looks with smooth, controlled electric power.
Built for riders aged around 3–6, it combines a 36V brushless motor, proper suspension, all-terrain tyres, safety features and three speed modes to help young riders build confidence safely.
My Take as a British MX Rider
The RFN Warrior SX-E400 is a great option when a child wants something that feels more like a real little motorbike rather than a balance bike.
The key is that it still keeps the power manageable. The lower speed modes, magnetic kill switch and smooth controller make it much more parent-friendly than just giving a young rider too much bike too early.
For a young rider who wants proper MX styling but still needs controlled progression, the SX-E400 is a strong first step.
Helpful Buying Guides
Why Choose the RFN Warrior SX-E400?
First MX-Style Bike
Real off-road styling for young riders who want a proper little electric motorbike feel.
Three Speed Modes
5mph, 8mph and 15.5mph modes let parents control progression from day one.
Safety Features
Magnetic safety kill switch, speed setting cover and full chainguard help protect younger riders.
Removable Battery
36V 5.2Ah lithium battery gives up to 11 miles or around 75 minutes of ride time.
Built for Young Riders
Best for Ages 3–6
The RFN Warrior SX-E400 is designed for riders aged around 3–6, approximately 90–110cm tall.
With a 46cm seat height, 18kg weight and maximum rider weight of 50kg, it gives younger riders a stable and planted feel while still staying manageable.
Suitability always depends on the individual child’s height, weight, confidence and ability — at the parent’s discretion.
Speed Settings
Smooth Power and Safety Features
The 36V brushless motor uses a sine wave controller to deliver smooth, predictable acceleration. That means no harsh power delivery — just controlled progression as your rider improves.
Controlled from Day One
- 36V brushless motor
- 250W rated output, 400W peak
- Sine wave controller for smooth power delivery
- Speed setting cover to prevent accidental mode changes
- Magnetic safety kill switch with lanyard
- Full chainguard to cover moving parts
These features make the SX-E400 a strong first electric MX-style bike for younger riders.
Suspension, Tyres and Braking
Front and rear suspension help absorb bumps and uneven terrain, keeping the bike stable and confidence-inspiring across grass, dirt and mixed surfaces.
Off-Road Ready Setup
- Front and rear suspension
- 12 x 2.4 inch all-terrain tyres
- 140mm rear disc brake
- Stable 18kg chassis
- MX-style riding position
The result is a first electric bike that feels much more like a real off-road machine.
Battery, Range and Charging
Add a spare battery to extend riding time even further.
What’s in the Box?
- RFN Warrior SX-E400 electric bike
- 36V 5.2Ah lithium battery
- UK charger
- Owner’s manual
- Tool kit
The SX-E400 arrives semi-assembled and requires front wheel, handlebars and number board fitting. Controls come pre-installed.
Specifications
Warehouse Stock, Setup & Fast UK Delivery
Delivered Semi-Assembled
RFN Warrior bikes are supplied semi-assembled and require final setup before first use.
Each bike includes the required tool kit, UK charger and owner’s manual.
Our Verdict
The RFN Warrior SX-E400 is a strong first electric MX-style bike for younger riders who want proper motorbike looks without jumping into too much power too early.
It offers smooth power, safety-focused features and a stable off-road setup that helps children build confidence safely.
If your rider is aged around 3–6 and wants a true first electric MX-style bike, the SX-E400 is an excellent starting point.
Related Guides
Ready for Their First MX-Style Bike?
Order the RFN Warrior SX-E400 online from Garland Powersports with UK delivery available.
First electric MX-style bike for riders aged around 3–6.
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Delivery & Returns