An 85cc-class motocross bike with no engine to service
The Warrior SX-E15 is RFN's full-size competition machine, built for advanced youth and adult riders who have outgrown a trail bike and want genuine MX-track pace. With a 920mm seat height and a 1,340mm wheelbase, it sits in the same physical class as an 85cc two-stroke — so it suits taller teenage riders and adults, not beginners. If the rider still needs a foot down at a standstill, look at the Warrior SX-E8 instead.
Motor and power delivery
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15kW peak output — around 20 horsepower
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650Nm of torque, delivered instantly from zero revs
- Top speed 85 km/h
- No gearbox, no clutch, no flooding a hot engine on the start line
Because there is no gearing to work through, the SX-E15 pulls hard off the line against a comparable petrol 85 — the torque is there the moment you open the throttle.
Battery and range
- 74V 40Ah Samsung lithium-ion pack — 2,960Wh
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Up to 80km range when cruising at 25 km/h (hard track riding will use it faster)
- 3.5-hour charge time
- Swappable pack — carry a second battery and keep riding through the day
Ride modes
An electronic controller with precision throttle mapping offers multiple selectable power modes, so the bike can be dialled back for a less experienced rider or wound up for race pace. Full mode details are covered in the owner's manual supplied with the bike.
Suspension, brakes and frame
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240mm of front fork travel and 250mm of rear shock travel — a genuine motocross suspension package built for jumps and rutted terrain
- Hydraulic disc brakes front and rear
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19" front / 16" rear motocross wheels and tyres
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86kg bike weight — light enough to move around underneath you and easy to pick up after an off
Quiet, clean, and legal to ride where petrol isn't
No fuel, no oil, no exhaust and no carburettor to tune. The SX-E15 runs near-silently and produces zero emissions, which makes it practical to ride on private property, rural blocks and noise-restricted tracks where a two-stroke would cause problems. Maintenance comes down to chain, brakes, tyres and suspension.
Warranty
Supplied with RFN Australia's 1-year nationwide Australian warranty, supported by RFN's service network 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 move with a carrier certified to handle lithium batteries, which affects both cost and available delivery options. Some remote and regional destinations, and some 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.
Talk to us first if you're unsure
Sizing a rider to the right bike matters more than headline power figures. If you are choosing between the SX-E8 and the SX-E15, tell us the rider's height, weight and experience and we will give you a straight answer.
