Ktm Sx 250
The KTM 250 SX is a two-stroke motocross motorcycle that has been a cornerstone of KTM's off-road lineup since the early 1990s, evolving continuously through decades of factory racing development. It gained significant credibility through numerous motocross world championship victories and became a benchmark in the 250cc two-stroke motocross class for its power delivery and handling. The model is renowned among amateur and professional riders alike for its aggressive power characteristics and lightweight chassis, keeping the two-stroke motocross tradition alive in an era increasingly dominated by four-strokes.
Approx. 46–49 hp
Power
Approx. 42–45 Nm
Torque
Approx. 102 kg
Weight
Approx. 110–120 km/h (note: estimate; top speed is limited in motocross use and varies by gearing)
Top Speed
Estimated 6–9 L/100km depending on riding intensity (note: highly variable in off-road/motocross use)
Fuel
Naked
Body
What Buyers Should Know
High Maintenance Demands
The KTM SX 250 is a high-performance 2-stroke that requires top-end rebuilds every 25-40 hours of riding. Always ask the seller for a maintenance log and when the last piston/ring replacement was done.
Strong Resale Value
KTM SX models hold their value well compared to Japanese competitors, often retaining 70-80% of market value after one season if properly maintained. Orange bikes have a loyal buyer base that keeps demand high.
Watch the Power Valve
The BOING power valve system is a known wear point — a sticky or dirty power valve causes noticeable power loss and flat mid-range response. Budget for cleaning or replacement if buying used.
Full Specifications
Rivals & Alternatives
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