KTM 300 SX 2026 – Raw power and lightweight design for MX Open

The 2026 KTM 300 SX sets the standard in motocross with extreme performance, low weight and complete control , inspired by the experiences of the KTM Factory Racing teams. This 2-stroke 300cc machine combines a lightweight engine, precise suspension and ergonomics that allow the rider to focus on going as fast as possible.

Key features

• Engine : 300 cc 2-stroke engine, only 23.9 kg, provides uncompromising power and low weight

• Electric start : Lithium-ion battery of 12.8V, 2 Ah located under the seat means you always get started quickly, even after stopping in a deep ditch

• Adjustability : Tool-free front and rear suspension adjustment; dual-compression rear shock, front fork with click adjustments

Suspension and damping

• Front : 48mm WP XACT AER air fork with encapsulated air spring and pressurized oil chamber for progressive, consistent damping

• Rear : WP XACT rear shock with Factory Racing-inspired settings and linkage geometry for optimal ground clearance and response

Ergonomics

• Driver triangle for improved knee contact and grip on footpegs

• Two-component plastic covers that direct air to the radiators and protect the fuel tank

• Compact, lightweight and ergonomic chassis provides optimal freedom of movement

Stability and frame

• Forged steerer tube connection and CNC machined triple clamps for precise fork alignment

• Optimized frame and shock geometry provides stability at high speeds and on demanding tracks

• Specially designed rear brake pedal for increased stiffness and better braking feel

The KTM 300 SX 2026 is designed for riders who want maximum motocross performance with low weight, precise control and electric start , with technology taken directly from the world of racing.