The step up from a kids bike to a real off-road machine
The Warrior SX-E5 sits in the 50cc class and is aimed at youth riders who have outgrown toy-grade bikes and are ready for something with genuine torque. It's a proper dirt bike — steel frame, long-travel suspension, hydraulic brakes — scaled for a growing rider rather than an adult.
Rider fit: the seat height adjusts from 615mm to 665mm, so the bike grows with the rider over a season or two. At 47kg it is far lighter than a petrol 50, which matters enormously when a young rider has to pick it up.
Motor and performance
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5kW peak output — about 7 horsepower
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145Nm of torque, available instantly
- Top speed 60 km/h
- No clutch, no gears — the rider concentrates on lines and body position, not shifting
Battery and range
- 48V 25Ah lithium-ion — 1,200Wh
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Up to 40km at a steady 35 km/h cruise
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4–5 hour charge, and the pack is swappable
Suspension, brakes and wheels
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205mm front fork travel, 180mm rear travel
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Hydraulic disc brakes front and rear
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12" front / 10" rear knobby tyres
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Steel frame built for off-road use
Three ride modes
Selectable ride modes let power be capped while a rider builds skill, then opened up as they progress — useful for parents who want to control how much bike their child has access to. The electronic controller smooths throttle response so power arrives progressively rather than all at once.
Why electric over a petrol 50
- More torque off the line, and it arrives the instant you open the throttle
- Lighter, so easier to manoeuvre and to recover after a fall
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No hot exhaust pipe — a genuine safety difference for a young rider learning to dismount
- No fuel mixing, no oil changes, no carburettor
- Quiet enough to ride on shared-use trails and suburban blocks without complaints
Where it can be ridden
Not road registrable. Intended for private property, rural blocks and permitted riding areas. Check with your local authority before riding anywhere public.
Warranty
Backed by RFN Australia's 1-year nationwide Australian warranty, supported from their Burleigh Heads QLD facility. RFN are German Design Award winners 2023–2025.
Delivery and freight
Freight is $149 per bike to metro areas, charged separately from the bike price and passed through at cost. Regional and remote postcodes are re-quoted before despatch — we will contact you before anything ships.
⚡ Lithium battery — dangerous goods notice. This bike ships with a large lithium-ion battery and is classed as dangerous goods for transport. It must travel with a carrier certified to handle lithium batteries, which affects cost and available routes. Some remote, regional and air routes are restricted. Contact us with your postcode if you would like freight confirmed before you order.
Bikes are despatched directly from RFN Australia in Burleigh Heads, QLD. We monitor RFN stock and will confirm availability with you when you order.
Not sure between the SX-E5 and SX-E8?
The SX-E8 is the 65cc-class bike — more power, taller seat, bigger wheels. Tell us the rider's height, weight and experience and we'll give you a straight recommendation rather than upselling you.
