RFN Warrior SX-E15: Everything You Need to Know
US carts print 8 kW rated and 15 kW peak, a 74V 40Ah pack, and $5,499. A UK page also prints 21 kW and 72V. This desk’s ~$3,699 line is not on those carts. Off-road only.
By SickEBike desk
The short answer
The RFN Warrior SX-E15 is a full-size electric dirt bike, not a Class 1–3 e-bike. Ride RFN prints $5,499, 8 kW rated and 15 kW peak, a 74V 40Ah pack labeled 2,960 watt-hours, and 56 mph. rfnbike.com prints 55.9 mph. A UK page also prints 21 kW and 72V. The product of 74 and 40 is 2,960. The list’s roughly $3,699 price is not on those carts.
The RFN Warrior SX-E15 is a full-size electric dirt bike, not a Class 1–3 e-bike. Ride RFN’s 2026 page prints $5,499, 8 kW rated and 15 kW peak, a 74V 40Ah pack labeled 2,960Wh, 56 mph, and up to 49.7 miles. rfnbike.com prints 55.9 mph and a 35-inch seat on a page that also says $5,499 and the same peak. A UK shop page prints £4,599, and on that page the peak is both the US figure and 21 kW, and the pack is both 74V and 72V. The row on the list said about $3,699. That figure is not on these carts. The row links here.
The US peak cell, and 21 kW further down a British shop page
Ride RFN’s 2026 product page, rfnbike.com, Golden Spike Powersports’ 2026 dealer card, and RFN’s UK shop page. Not averaged.
| What is printed | |
|---|---|
| Price | Ride RFN: $5,499. The taller-wheel sibling on that page is $5,649. rfnbike.com: $5,499. Golden Spike: $5,399, and the card says the price does not include doc, license, registration, or tax. UK: £4,599. The list’s ~$3,699 does not appear. |
| Motor | Ride RFN and the dealer card: 8 kW rated, 15 kW peak. rfnbike.com’s hero: the same peak. The British intro says a 15 kW peak motor. Lower on that page: 21 kW peak, and a line that says 21 kW from a 72V 40Ah battery. Do not average 15 and 21. |
| Battery | US pages that print the pack: 74V, 40Ah, 2,960Wh. The product of 74 and 40 is 2,960. The British spec list also prints 74V 40Ah and 2,960Wh, then a later sentence prints 72V. The product of 72 and 40 is 2,880. A 72-volt sentence cannot be the 2,960Wh cell. |
| Speed | That US cart and the dealer: 56 mph. rfnbike.com: 55.9 mph. British intro: up to 85 km/h. British spec list: up to 60 mph. Eighty-five kilometers an hour is 52.8 miles an hour. Three speed stories, not one average. |
| Seat and wheels | That US cart: 34.6 in, 19 in front and 16 in rear, wheelbase 53 in. Dealer card: 34.5 in and the same 19/16 and 53 in wheelbase. Britain: seat 880 mm, which is 34.6 in, and wheelbase 1,340 mm, which is 52.8 in. rfnbike.com’s highlight says a 35-inch seat. The taller sibling on that page is 36.2 in with 21/18 wheels. This row is the 19/16 bike. |
| Weight and brakes | That US cart: approximately 190 lb, hydraulic discs, 240 mm front and 220 mm rear, five ride modes, charge about 2–4 hours, range up to 49.7 miles and a ~50 mile bullet. The other pages read here did not print a curb weight. Range on the £4,599 page is up to 80 km at 40 km/h, which is the same 49.7 miles if you convert it, and a different sentence if you do not. |
| Use | That US cart: off-road recreational use only. Not classified or equipped as a street-legal electric bicycle, moped, or motorcycle. The £4,599 page says it is not legal on public roads, cycle paths, or pavements, unless a government-approved rental scheme applies. |
Two thousand nine hundred sixty is the product of 74 and 40. Two thousand eight hundred eighty is the product of 72 and 40. The watt-hour cell on the US pages matches the first product. The 72-volt sentence that pairs the higher peak with that voltage does not match the watt-hour cell. Publishing 2,920 would invent a third pack. Fifty-six, 55.9, 60, and 52.8 are four speed claims. The dealer’s 56 and the US cart’s 56 agree with each other. They do not agree with the British spec list.
The product of 74 and 40 is 2,960. A 72-volt sentence on the UK page is a different pack. Pick the cell you are quoting.
Who it is for
The list filed this chassis as value against an Ultra Bee. That comparison was easier when the row said about $3,699. At $5,499 the US cart sits near Voro’s Ultra Bee money, and the peak cell is not 24.5 kW. The taller sibling is a higher seat and bigger wheels on that same page, not a second motor printed there. Do not buy the 21/18 bike and expect the 34.6-inch number. About 190 pounds is a two-person lift. A 35-inch highlight and a 34.6-inch spec are not the same fit.
Fifteen kilowatts and a mid-50s speed claim fail the three-class bicycle test before anyone argues about pedals. Class 2 stops at 20. Class 3, where it exists, is pedal assist to 28. Private land and an off-road park that allows an electric motorcycle are the map. The park’s rule is the rule. The watt-hour page is the multiplication above. A Segway X160 is a smaller dirt bike with a 3 kW manual rating and a 31.1 mph cap. Different weight, different voltage, different job. Do not put a child on this chassis because a UK URL says youth. That page’s own line is experienced riders 16 and older, and the US page does not call it a kids’ bike.
Questions people ask
Is the RFN Warrior SX-E15 an e-bike?+
No. Ride RFN says it is off-road only and not a street-legal electric bicycle. Fifteen kilowatts and a mid-50s speed claim are not Class 2 or Class 3.
How fast do the carts say it is?+
Ride RFN and a dealer card print 56 mph. rfnbike.com prints 55.9. The UK intro prints 85 km/h, which is 52.8 mph, and the UK spec list prints 60 mph. Do not average them.
What battery does the US cart print?+
74 volts, 40 amp-hours, labeled 2,960 watt-hours. That product matches. A later UK sentence prints 72 volts and 40 amp-hours. 72 times 40 is 2,880. That is a different pack claim.
How much do the carts charge?+
Ride RFN and rfnbike.com print $5,499. A dealer card prints $5,399 before fees. The UK price is £4,599. This desk’s old ~$3,699 line is not on those pages.
Keep riding
Sur-Ron Ultra Bee: Everything You Need to Know
The Sur-Ron Ultra Bee is a 24.5 kW, 74V 60Ah dirt bike, about 195 lb. It is not a Class 1–3 e-bike. Voro’s cart showed $5,995.95 and a 20 mph governor. Canada’s card says 59 mph.
SEP 24, 2026
Segway X160: Everything You Need to Know
The shared manual prints 3 kW, 31.1 mph, 48V 20Ah, and 105.8 lb with the pack. The age line is 18–55. Shop prices run from about $2,939 to $4,950. Not a Class 1–3 e-bike, and not a kids’ bike.
SEP 25, 2026
What Is a Class 1, 2, and 3 E-Bike?
Class 1 is pedal-assist to 20. Class 2 adds a throttle to 20. Class 3 is pedal-assist to 28. A Tuttio is none of these. The sticker is not the trail.
SEP 23, 2026