2025 KTM 150 SX

$8,499.00
$8,499.00
Sale Sold out
Plus Destination: $650

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2025 KTM 150 SX – TWO-STROKE PUNCH FOR SAN DIEGO’S FASTEST

The 2025 KTM 150 SX brings championship-grade adrenaline to San Diego's motocross scene, combining the best of 125 cc agility with just the right boost of torque to power through deep ruts and steep jumps. Whether you’re ripping laps at Pala or threading through the whoops at Barona Oaks, this two-stroke rocket is made to launch you ahead of the pack.

This year’s 150 SX features a powerful EFI-fed engine housed in KTM’s latest-generation frame, delivering instant response and explosive acceleration. With electric start, a lightweight chassis, and factory-inspired ergonomics, it’s designed to reward aggressive riders with razor-sharp feedback and superior ride control.

If you're looking to move up from a 125 without sacrificing agility — or want a full-throttle training machine to hone your speed — the 2025 KTM 150 SX is San Diego’s secret weapon. It’s compact, capable, and READY TO RACE.

UNIT SPECS

Engine

  • Transmission: 6-speed
  • Starter: Electric starter
  • Stroke: 54.5 mm
  • Bore: 58 mm
  • Clutch: Wet, DDS multi-disc clutch, Brembo hydraulics
  • Displacement: 144.6 cm³
  • EMS: Vitesco Technologies EMS
  • Design: 1-cylinder, 2-stroke engine
  • Fuel System: Keihin EFI, 39 mm throttle body

Chassis

  • Weight (without fuel): 92.4 kg
  • Tank Capacity (approx.): 7.2 l
  • Wheelbase: 1,485 mm ± 10 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: 359 mm
  • Handlebar: Neken, aluminum Ø 28/22 mm
  • Rear Suspension: WP XACT Monoshock with linkage
  • Seat Height: 958 mm
  • Silencer: Aluminum
  • 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 aluminum rims

FEATURES

  • FIERCELY COMPETITIVE 150 CC ENGINE: The 2-stroke engine delivers a high-revving powerband with more punch than a 125 cc, making it ideal for racers seeking to bridge the gap between classes.
  • ELECTRONIC FUEL INJECTION (EFI): Keihin EFI replaces traditional jetting, ensuring consistent performance across altitudes and conditions, while improving fuel efficiency and throttle response.
  • ELECTRIC STARTER: A push-button start system eliminates the need for kickstarting, powered by a lightweight lithium-ion battery for quick restarts under pressure.
  • LIGHTWEIGHT CHASSIS: The hydro-formed, laser-cut, and robot-welded steel frame is tuned for optimal stiffness and flex, delivering sharp handling and high-speed stability.
  • WP XACT SUSPENSION: Features 48 mm AER forks and a linkage-equipped WP XACT rear shock, providing premium adjustability and class-leading comfort on rough terrain.
  • CENTRALIZED MASS: Engine placement and components are optimized for mass centralization, improving flickability and rider confidence through corners.
  • RACE-FOCUSED ERGONOMICS: Narrow bodywork, a flat seat profile, and ergonomic shrouds give the rider maximum control and freedom of movement in all racing conditions.
  • BUILT TO WIN: The 150 SX carries KTM’s READY TO RACE DNA into every lap — with proven durability, elite componentry, and a ride feel designed to dominate the gate drop.

📄 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.