KTM 50 SX - 2026 Specifications and Reviews

The 2026 KTM 50 SX is an entry-level motocross machine engineered for young riders and beginners seeking authentic off-road performance. Its lightweight frame, responsive WP suspension, and automatic clutch deliver manageable yet engaging handling on dirt tracks. Known for durability and aggressive styling, it bridges the gap between children's bikes and larger competition models.

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Engine and Transmission Specifications

ClutchCentrifugal clutch (adjustable)
GearboxSingle-speed automatic
Capacity49.9 cm³
 
 

Physical measures and capacities

Fuel Capacity2.3 l
Ground Clearance233 mm
Seat Height653 mm

KTM 50 SX dimensions and frame

Rear SuspensionXACT WP mono shock
Front SuspensionXACT 35 WP Upside-Down fork, Ø 35 mm
Rear BrakesDisc brake
Front BrakesDisc brake
FrameCentral-tube frame with double-cradle
 
 

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay

Performance Profile & Rider Fit

Best For

Track55%
City5%
Cornering60%
Daily Riding5%
Touring5%
Passenger0%

Rider Profile

Best ForThis is a first motorcycle built for young children just starting out in motocross, not for teen or adult riders of any skill level.
PurposeIt exists purely to teach a child the fundamentals of balance, throttle control, and off-road riding in a safe, low-powered package.
Rider FitIts very low 653 mm seat height and lightweight small-bore chassis are sized specifically for small children, with an adjustable centrifugal clutch to tailor power delivery to their skill.
CharacterIt behaves like a purpose-built miniature dirt bike, docile and forgiving with an automatic single-speed gearbox that removes clutch and shifting complexity so a child can focus on riding.
Not Ideal ForIt is not suitable for adults, taller teens, road use, touring, or anyone seeking real speed or highway capability.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Reviews

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