2025 KTM 300 SX

$9,599.00
$9,599.00
Sale Sold out
Plus Destination: $650

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2025 KTM 300 SX – TWO-STROKE DOMINANCE, SAN DIEGO STYLE

The 2025 KTM 300 SX brings unmatched two-stroke fury to motocross tracks across San Diego, from the sand whoops of Ocotillo to the tight corners of Barona. With no throttle delay, no weight penalty, and absolutely no mercy, this machine is engineered for riders who crave raw performance and control in equal measure.

Armed with a potent 300 cc 2-stroke engine and revolutionary electronic fuel injection (EFI), the 300 SX redefines what a large-displacement two-stroke can be. It delivers explosive power through a lightweight chassis, while advanced WP XACT suspension keeps the ride razor-sharp and responsive lap after lap.

If you're ready to ditch the four-stroke routine and experience a new level of race-winning edge, the KTM 300 SX answers the call. It's loud, fast, and engineered to lead the pack in Southern California’s most competitive scenes.

UNIT SPECS

Engine

  • Transmission: 5-speed
  • Clutch Primary Drive Teeth: 72
  • Starter: Electric starter
  • Stroke: 72 mm
  • Bore: 72 mm
  • Clutch: Wet, DDS multi-disc clutch, Brembo hydraulics
  • Displacement: 293.2 cm³
  • EMS: Vitesco Technologies EMS
  • Design: 1-cylinder, 2-stroke engine
  • Fuel System: Keihin EFI, throttle body 39 mm

Chassis

  • Weight (without fuel): 99.4 kg
  • Tank Capacity (approx.): 7.2 l
  • Wheelbase: 1493 mm
  • Front Brake Disc Diameter: 260 mm
  • Rear Brake Disc Diameter: 220 mm
  • Front Brake: Disc brake
  • Rear Brake: Disc brake
  • Chain: 520, Non-sealed
  • Frame Design: Central double-cradle-type 25CrMo4 steel
  • Front Suspension: WP XACT-USD (AER), Ø 48 mm
  • Ground Clearance: 354 mm
  • Handlebar: Neken, aluminium Ø 28/22 mm
  • Rear Suspension: WP XACT Monoshock with linkage
  • Seat Height: 958 mm
  • Silencer: Aluminium
  • Steering Head Angle: 63.9°
  • Rear Subframe Design: Aluminum-reinforced polyamide
  • Suspension Travel (Front): 310 mm
  • Suspension Travel (Rear): 300 mm
  • Wheels: Spoked wheels with aluminium rims

FEATURES

  • FUEL-INJECTED POWER: The 300 cc 2-stroke engine is equipped with cutting-edge EFI, delivering consistent power, smoother throttle response, and improved rideability at all altitudes and temperatures.
  • ELECTRIC STARTER: No more kicking — the 2025 300 SX features a reliable electric starter system powered by a lightweight Li-Ion 2.0 Ah battery, making restarts quicker and easier on the track.
  • 2-STROKE DOMINANCE: Combining a 300 cc displacement with race-developed engineering, this engine delivers explosive torque and top-end speed with the simplicity and minimal weight of a two-stroke.
  • PREMIUM SUSPENSION: Outfitted with WP XACT 48 mm AER front forks and a linkage-equipped WP XACT rear shock, the suspension system delivers unmatched adjustability and terrain compliance for aggressive riding.
  • OPTIMIZED FRAME DESIGN: The frame design provides flex characteristics ideal for high-performance motocross, giving riders precise feedback and unmatched control in every situation.
  • ERGONOMIC BODYWORK: Narrow ergonomics and grippy seat textures allow for better rider movement and control, even during long motos or technical sections.
  • LIGHTWEIGHT ADVANTAGE: Thanks to its 2-stroke design, compact electronics, and mass-centralized layout, the 300 SX remains incredibly light, responsive, and flickable.
  • READY TO RACE: Like every KTM motocross model, the 300 SX comes track-ready with minimal setup. The only thing left to do is drop the gate and go full throttle.

📄 Download Owner's Manual

See TERMS for details. Plus government fees and taxes, any finance charges, dealer document processing charges, electronic filing fees, emission testing charges, and freight. All sale prices include applicable factory incentives. Availability may vary. Some items may not be in immediate dealer stock and may require ordering. Estimated order time ranges from 1 to 90 days. Please see terms for full details. Please call to confirm availability.