What is the engine displacement of the 2026 KTM 250 SX?

The 2026 KTM 250 SX has an engine displacement of 249 cc.

2026 KTM 250 SX Price, Specs, Review

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Review

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The KTM 250 SX 2026 is a high-performance motocross motorcycle designed for enthusiasts. It features a 249 cc single-cylinder, 2-stroke engine equipped with a Keihin EFI 39 mm throttle body. Managed by Vitesco Technologies EMS, the engine is paired with a 5-speed transmission. The wet, DDS multi-disc clutch is operated via Brembo hydraulics. The frame is a central double-cradle type made from 25CrMo4 steel. Front suspension consists of WP XACT-USD (AER) 48 mm inverted forks, while the rear suspension is a linkage-connected WP XACT Monoshock. Front wheel travel is 310 mm, and rear wheel travel is 300 mm. Both front and rear disc brakes ensure reliable stopping power. The seat height is 958 mm, ground clearance is 354 mm, and the fuel capacity is approximately 7.2 liters. With a dry weight of 99.4 kg, this model stands out for its lightness and agility.

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License Class (EU)

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Rule of thumb: under 125cc / 15HP → A1, under 47HP → A2, above → A.

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Fuel Economy & Running Costs

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Estimated average for 249cc class: 55-80 mpg (3.0-4.5 L/100km)

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Insurance Class

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Insurance grouping for KTM 250 SX (249cc):