RFN Youth Warrior SX-E5 Electric Motorcross Bike

RFN Youth Warrior SX-E5000

Key Features

• 3 Speeds settings for Parental control
• Up to 24.5 mile range 
• 48V / 1,200Wh, 25AH Lithium Battery (removable)
• Brushless Motor with a 5000 Watt (5KW) Peak output
  
• Lanyard “Power Off” switch and adjustable speed settings to suit different rider capabilities. 
  
• Adjustable Front and Rear Suspension
• Tough Steel Frame 
• Light Weight and easy to transport at 47Kg
• Suitable for ages 6-10
• 2 Colours Available - Black edition and Red/Blue.

Electric Muscle with Unmatched Torque

At the heart of the SX-E5 lies a 5kW Peak Output Motor, delivering an impressive 7 horsepower and a ground-gripping 145Nm of torque. With a top speed of 60 km/h, this electric warrior doesn’t just keep up with combustion-powered 50cc bikes it blows them away in acceleration and responsiveness, all without the noise, heat, or fumes.

High-Capacity Swappable Battery

Powered by a 48V 25Ah Lithium-Ion battery (1,200Wh). When the adventure’s not over, a 2-hour fast charging system and swappable battery design mean you can be back on the trails in no time.

Built for Real Off-Road Riding

Equipped with a 12” front and 10” rear knobby tire setup, the SX-E5 is ready to tackle everything from backyard dirt tracks to proper off-road trails. With 205mm of front suspension travel and 180mm rear travel, it soaks up bumps with ease and delivers a smooth, controlled ride ideal for developing skills in comfort and confidence.

Lightweight and Rider-Friendly

Weighing just 47kg, the SX-E5 is much lighter than petrol equivalents, making it easier for younger riders to handle, balance, and pick up if dropped. The adjustable seat height (615–665mm) ensures a perfect fit for a growing rider.

Clean, Quiet, and Low-Maintenance

Unlike petrol bikes, there’s no engine noise, no hot exhaust pipe, no fuel mixing, and no oil changes. That means less time maintaining, more time riding, and a safer, cleaner experience for both kids and parents.

Safety-First Features

Hydraulic Disc Brakes (Front & Rear) for reliable stopping power, Three-Speed Ride Modes for rider progression and parent-controlled limits, Steel Frame Construction for off-road durability, Electronic Controller with Advanced Motor Algorithms for smooth throttle control.

Electric vs Petrol: Why the Youth SX-E5 Wins

Compared to a traditional 50cc petrol dirt bike, the SX-E5 offers:

✅ More Torque: Instant power delivery for better climbing and off-the-line acceleration ✅ Lighter Weight: Easier to maneuver and recover after falls 
✅ Zero Noise: No screaming engine, great for suburban or shared-use trails
✅ No Hot Exhaust Pipe: Safer for young riders learning to ride and dismount
✅ No Fuel or Oil: Just plug, charge, and ride simple, clean and future-ready

The RFN Youth Warrior SX-E5 isn’t just a step up it’s a leap forward into the future of off-road riding. It delivers all the thrills of a 50cc petrol bike with fewer headaches and far more innovation. Perfect for young riders ready to progress, this bike is a serious machine designed for serious fun.

What is in the box? 

• Unbuilt bike x1
• Battery x 1
• Charger x 1
• Tool Kit x 1 
• Owners Manual
• Assembly Instructions

RFN Youth SX-E5000 build time

Around 25-35 minutes.

RFN Warranty (Please Read)

It is advised to keep your original box and packaging throughout your bikes warranty period of 12 months in case the bike needs to be returned to us.

Main components: 12 months excluding servicable items and subject to adherence to service schedule.

First Service must be carried out at 6 months without fail, Second Service at another 6 months and so on. Warranty valid from the date of delivery.

RFN Bikes is not responsible for any damage caused by incorrect assembly. So please be sure to take care in assembling your bike as the spare parts are difficult to come by. Ensure ALL bolts and components are tightened and properly lubricated.

This limited warranty does NOT cover normal wear and tear parts, bearings, tyres, tubes, chains, sprockets, cables or any damage, failure or loss caused by improper assembly, maintenance, storage or use of the Amped product.

This limited warranty will be void if this product is ever: Used in a manner other than for recreation and transportation. Modified in anyway.  Used in wet conditions.

Warranty is a PARTS ONLY WARRANTY, It does NOT include labour. If the bike needs to be repaired by us, the bike needs to be returned to us (the place of purchase) at the CUSTOMERS cost. 

Please note if you order a bike for delivery outside of the UK and Ireland you will be liable for the price of postage for any parts supplied under our warranty! Postage cost is only covered on warranty parts to the UK and Ireland.

Shipping For RFN E5, E8 and E15 

Future Riders are proud to be able to offer a Premium Delivery Service.

All Bikes are built for the order, During busy periods this can delay delivery but the Bikes can also built yourself.

Once an order is placed a member of the team will give you a call to arrange delivery with you and confirm how you would like to take delivery of the bike. 

All bikes will delivered on pallet and someone will need to be in to take delivery. On the day of delivery you should expect the delivery between the hours of 8am - 6pm.

Standard Delivery - 2/3 working days Via Palletways

Express Delivery - 1/2 Days When purchased before 10am via Palletways.

(We aim to deliver on the next working day but it is subject to where you live. so this is not always guaranteed.)

Returns

Customers have 30 days from when an item arrives to return a purchase to us. All items must be returned in new/unused condition and in original packaging.