Bigger Wheels, Better ride
The Ultimate Electric dirt bike
74V
40 AH
Battery
61
MPH
Top Speed
15
KW
True Peak Power
205
LBS
Weight
50
MILE
Range
2-4
HOUR
Charging Time
For off-road use only.

SX-E15 Plus / Stark Varg Race

SX-E15 at Redbull TKO

SX-E15 Review at the track!

2026 RFN Warrior Pro SX‑E15 Plus

61 MPH • 74V • 15kW • Full-Size 21/18 Wheels

The fastest production electric dirt bike in its class. Delivering true 250cc trail performance and 85cc track capability without gas, noise, or constant maintenance.

Proven at the Red Bull TKO Enduro and race-ready straight out of the box.

Made for riders who want real 250cc-level performance — without the hassle

Instant torque. No clutch. No shifting. No power band.

Just smooth, predictable acceleration and total control — especially in tight, technical singletrack where gas bikes wear you out.

Up to 50 miles of range and fast 2–4 hour charging means more trail time and less garage time. No oil changes. No jetting. No warm-ups. Just load it up and ride.

The SX-E15 Plus is built for riders who’d rather spend their time on the mountain than working on their bike.

1 of 5

$5,699

+ Shipping/Tax

PRODUCT SPECS

Specifications

Performance

  • Top Speed: 61 MPH
  • Range: Up to 50 miles
  • Power Modes: 5
  • Reverse: Yes
  • Peak Power: 15 kW

Powertrain

  • Battery: 74V Samsung 40Ah
  • Regenerative Braking: Yes
  • No oil changes
  • No top-end rebuilds
  • No fuel mixing

Chassis & Suspension

  • Frame: Chromoly race frame
  • Front Suspension: Fully adjustable race suspension
  • Rear Suspension: Fully adjustable race suspension
  • Wheels: 21” front / 18” rear (full-size)
  • Brakes: Double-piston moto brakes

Ergonomics & Weight

  • Seat Height: 36.2”
  • Weight (Ready-to-Ride): 205 lbs

Other

  • Real moto geometry & capability
  • Track or trail ready
  • Minimal maintenance
  • Designed for true dirt bike performance

Premium Samsung Battery

74V 40Ah pack delivers class-leading power, reliability, and range. Built to withstand thousands of charge cycles, with quick-swap capability for all-day riding. The battery is resilient and has 5-10 years of life.

Plus-Sized 21"/18" Wheels

The first AMA Certified electric dirt bike in it's class with plus sized wheels!

Bigger wheels mean better rolling efficiency, smoother handling over rocks, roots, and logs, and a taller 36.2" seat height for riders who want maximum control and capability.

After Purchase Support

✔ Replacement parts warehoused in Orem, Utah
✔ 10+ dealerships in Utah and Idaho

Regenerative Braking 

Allows the battery to charge while decelerating or coasting down hill.

RFN App

See stats, control top speeds, and customize all settings from your phone.

Warranty

Comprehensive warranty protects customers from defective parts.

Battery - 24 months

Motor - 24 months

Controller - 24 months

Charger - 24 months

F/R wheel without tire - 10000km

Front suspension fork - 6 months or 3000km

Rear shock - 6 months or 3000km

Display - 12 months

Chain - 1500km

Sprocket - 5000km

Saddle - 12 months

Harness - 12 months

Disc rotor - Lifetime

Speed mode button - 12 months

Emergency power off switch - 12 months

Front brake assembly (without brake pads) - 12 months

Rear brake assembly (without brake pads) - 12 months

 

Return Policy

Unopened items in original packaging can be returned 30 days after the product is received.