CYLINDER KIT 81mm KTM 250 SX-F EXC-F 23-26 ATHENA P400270100026 STD BORE
The Athena standard bore cylinder kit is designed for KTM SX-F 250 and EXC-F 250 4-stroke models, providing a complete top-end rebuild solution that maintains original engine geometry, tolerances, and operating characteristics. The kit includes a high-silicon aluminium cylinder, forged piston, wrist pin, circlips, and a full gasket set, ensuring compatibility with OEM components and consistent performance under demanding conditions.
Features
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Complete top-end rebuild kit for KTM 250 4-stroke engines
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Maintains original bore size and engine configuration
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Direct replacement for OEM components
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Plug-and-play installation with no modifications required
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High wear resistance and durability under off-road use
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Stable performance under high thermal and mechanical loads
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Reduced friction during engine operation
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Suitable for professional engine rebuilds and workshop use
Specifications
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Bore diameter: 81 mm (standard bore)
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Cylinder material: high-silicon aluminium with wear-resistant coating
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Piston type: forged, CNC-machined
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Piston coating: molybdenum disulphide
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Head gasket type: multi-layer steel (MLS), stainless steel, laser-cut
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Kit reference: P400270100026
Vehicle Fitments
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KTM SX-F 250 cc 2023–2026
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KTM EXC-F 250 cc 2024–2026