FXB SX-E2 Pro Cross vs RFN Warrior SX-E500 (2026 Compare)

The market for kids' electric dirt bikes in Australia has filled out fast. Two 14" bikes show up in nearly every shortlist for riders aged roughly 4–9: the FXB SX-E2 Pro Cross and the RFN Warrior SX-E500. Same wheel size. Similar age bracket. Both running 36V lithium systems and hydraulic disc brakes. On paper they look interchangeable.

They aren't. The difference is in the components inside each bike and the supply chain behind them.

The FXB SX-E2 Pro Cross is built in the same factories that supply electric dirt bike riders worldwide and ships direct from FXB's Tasmania warehouse — no importer, no distributor, no dealer floor. The RFN Warrior SX-E500 is an Apollo product sold through a reseller and dealer network. Both are real bikes. Only one is sold at the price the factory set.

Here's how they compare on the specs that decide how the bike actually rides.

FXB SX-E2 Pro Cross vs RFN Warrior SX-E500 — full spec comparison

Motor and power: 600W vs 500W

The FXB SX-E2 Pro Cross runs a 36V 600W brushless hub motor. The RFN Warrior SX-E500 runs a 36V 500W brushless hub motor. That's 100W of additional sustained power on the FXB — roughly 20% more.

On flat dirt the difference shows up in acceleration. On loose ground, wet grass, or any climb steeper than a gentle gradient, it shows up in whether the bike pulls through or bogs down. For a kid in the 5–9 age range — past the gentle-introduction phase — that extra torque headroom is what keeps the bike feeling responsive as confidence grows.

Top speeds reflect the same gap: 40 km/h on the FXB versus 35 km/h on the RFN. Both bikes have three speed modes, so a parent can set a lower ceiling for early rides. But the bike with more headroom is the bike a rider doesn't outgrow as fast.

Battery and range: 10.0Ah vs 7.5Ah

Battery capacity is where the FXB SX-E2 Pro Cross opens up its biggest lead. Both bikes run 36V lithium packs and both are removable. The numbers:

• FXB SX-E2 Pro Cross: 36V 10.0Ah (~360 Wh)
• RFN Warrior SX-E500: 36V 7.5Ah (~270 Wh)

That's 33% more battery on the FXB. Real-world range translates to 15–30 km per charge on the SX-E2 Pro Cross, depending on terrain and ride mode. The RFN sits around 25 km at the upper end of its quoted ride time.

The Warrior tops up faster — about 2 hours versus the FXB's 3 hours — which is the trade-off for the smaller pack. If a household runs two batteries and swaps mid-session, the RFN's faster charge is useful. If one battery has to last the session, the FXB's larger pack gets the kid more time on the dirt.

Suspension: named motocross componentry vs unbranded

This is the line where premium componentry stops being a marketing word and starts being parts you can actually look up.

The FXB SX-E2 Pro Cross runs:

• Front: 27mm regular hydraulic fork
• Rear: FASTACE 190mm adjustable spring shock

FASTACE is a real motocross suspension supplier — the same brand used on full-sized electric dirt bikes sold to riders internationally at twice the price. The 190mm of travel is matched to the bike's wheelbase. Adjustable preload means the shock tunes to the rider's weight, rather than sitting at a one-size compromise.

The RFN Warrior SX-E500 runs dual suspension — front and rear — but the brand and exact spec aren't disclosed on retail listings. That's not a fault, it's a position: RFN is selling on the category of dual suspension, not the componentry.

If a parent rides themselves, that distinction matters. If they don't yet, it will the first time the kid lands a jump and the rear shock either soaks it or doesn't.

Brakes: TIM hydraulics vs unbranded hydraulics

Both bikes run hydraulic disc brakes front and rear — that's the right spec for either. The difference is what's on the lever.

The FXB SX-E2 Pro Cross uses TIM hydraulic brakes, a named motocross brake supplier, listed transparently on the spec sheet. The RFN Warrior runs hydraulic disc brakes but doesn't publish the brand; independent reviews put the rotors at 140mm.

Both bikes will stop. The named-component bike has parts a parent can source, replace, and price-check against any other moto. The unbranded bike runs on a single supply line.

Geometry: 550mm seat vs 490mm seat — which rider fits which bike?

This is the one place the RFN Warrior has a real advantage — for a specific rider. The 490mm seat suits a smaller kid earlier — typically a 4-year-old or a small 5-year-old. The FXB SX-E2 Pro Cross sits at 550mm, fitting a slightly taller and more confident rider.

The trade-off is on the other end of the age range. The FXB's longer wheelbase (855mm) and taller stance scales with a rider into the 7–9 bracket — exactly when a kid stops wanting a bike that "still looks like a starter." The Warrior tops out earlier in the size curve.

Rough fit guide:

• Rider 100–115cm tall, age 4–5: RFN Warrior SX-E500 fits earlier
• Rider 115–135cm tall, age 5–9: FXB SX-E2 Pro Cross scales further with the rider

Training wheels — and why FXB doesn't offer them

The RFN Warrior SX-E500 ships with an optional training wheels kit. The FXB SX-E2 Pro Cross does not. That's a deliberate choice, not an oversight.

A real dirt bike — even at 14" — teaches a kid balance, not stability. Training wheels delay that lesson. FXB's position across the whole range is that the rider is learning to ride, not learning to be propped up. A kid who genuinely needs the propped-up stage first will get more from a push balance bike than a powered bike with stabilisers bolted on.

Two different philosophies. Worth knowing before either bike lands in the driveway.

Factory direct vs reseller: why two similar bikes can cost different money

Specs only tell half the story. The other half is who sits between the factory and the kid.

The RFN Warrior SX-E500 is sold through Apollo's reseller and dealer network — including in Australia. Every link in that chain adds margin: importer, distributor, retailer. By the time the bike reaches a driveway in Hobart or Geelong or Wagga, the price reflects the bike and the network that delivered it.

The FXB SX-E2 Pro Cross ships direct. Same calibre of factory, no importer markup, no dealer floor margin. Dispatched from Tasmania, free anywhere in Australia, with a real human on the other end of the email and phone.

That's why two 14" electric dirt bikes can carry similar sticker prices and contain very different componentry. Factory direct buys the difference in hardware — TIM brakes instead of unbranded, FASTACE suspension instead of generic, 100W more motor, 33% more battery.

Warranty, returns, and Australian support

The FXB SX-E2 Pro Cross comes with:

• Two-year warranty — twice the industry standard
• 30-day test ride — if the bike isn't right, full refund
• Free Australia-wide shipping from a Tasmania warehouse
• Direct contact with the Australian team — hello@ridefxb.au or 0400 986 352

The RFN Warrior SX-E500's warranty, returns policy, and shipping cost depend on the reseller. Cover typically ranges from 6 to 12 months depending on the seller, and shipping is usually charged on top of the bike price.

If something needs fixing, the line of accountability on an FXB is one company long. Not three.

FAQ — FXB SX-E2 Pro Cross vs RFN Warrior SX-E500

Is the FXB SX-E2 Pro Cross better than the RFN Warrior SX-E500?

For most riders aged 5–9, yes. The FXB SX-E2 Pro Cross has more motor power (600W vs 500W), more battery capacity (10.0Ah vs 7.5Ah), a faster top speed (40 km/h vs 35 km/h), named-brand FASTACE suspension and TIM hydraulic brakes, a longer warranty, and ships factory direct without dealer markup. The RFN Warrior fits genuinely smaller riders (490mm seat versus 550mm), which is its main advantage for riders at the bottom of the 4-year-old bracket.

What age is the FXB SX-E2 Pro Cross for?

The SX-E2 Pro Cross suits riders roughly aged 5 to 9, depending on height and confidence. The 550mm seat and 855mm wheelbase fit a rider who's past the smallest balance-bike stage and is ready for real performance.

What age is the RFN Warrior SX-E500 for?

Apollo positions the Warrior SX-E500 for ages 4–8, with a 490mm seat and a 50 kg rider weight limit. It suits the smaller end of that range better than the larger end.

What's the top speed of the FXB SX-E2 Pro Cross?

40 km/h in High mode. The bike also runs Low (12 km/h) and Mid (25 km/h) modes, so a parent can set a slower ceiling for early rides and increase it as the rider's skill grows.

Does the FXB SX-E2 Pro Cross come with a warranty?

Yes — every FXB bike includes a two-year warranty, twice the industry standard for kids' electric dirt bikes. The bike also includes a 30-day test ride with full refund if it's not the right fit, and free Australia-wide shipping from Tasmania.

Are FASTACE shocks and TIM brakes worth it on a kids' electric dirt bike?

For a rider past the entry-level stage, yes. FASTACE and TIM are real motocross componentry — the same suppliers used on full-sized electric dirt bikes sold overseas at higher price tiers. Named components are replaceable, serviceable, and priced against the rest of the moto market. Unbranded parts depend on whoever assembled the bike still being in the supply chain when something wears out.

Where does the FXB SX-E2 Pro Cross ship from?

The SX-E2 Pro Cross dispatches from FXB's Tasmania warehouse, free, to anywhere in Australia. Most orders ship within 1–2 business days.

Is the RFN Warrior SX-E500 made in Australia?

No. The RFN Warrior is manufactured overseas (Apollo's parent network) and imported through Australian resellers. The FXB SX-E2 Pro Cross is also manufactured overseas — at factories supplying riders worldwide — and shipped direct to a Tasmania warehouse, with no importer or dealer layer in between.

Can the FXB SX-E2 Pro Cross be registered for road use?

No. Like the RFN Warrior and every other kids' electric dirt bike in this category, the SX-E2 Pro Cross is for off-road use only — private property, motocross tracks, and designated trail areas. Check local council rules for where off-road bikes can be ridden in your area.

Bottom line

The RFN Warrior SX-E500 is a real entry-level kids' electric dirt bike with a genuinely small seat that suits younger riders. For a rider at the very bottom of the 4-year-old bracket who's just stepping off a push balance bike, it's a fair option.

For everyone past that — a rider ready for real componentry, real adjustability, and a bike that scales with them into the 5–9 bracket — the FXB SX-E2 Pro Cross is the bike. 600W motor. 10.0Ah battery. FASTACE adjustable suspension. TIM hydraulic brakes. Two-year warranty. 30-day test ride. Free Australia-wide shipping from Tasmania.

Factory direct. No dealer markup. The bike your kid wants — at the price it should have been all along.

Shop the FXB SX-E2 Pro Cross →