PISTON KIT 90-94 KTM250 67.50, WOSSNER 8005DA FORGED
PISTON KIT 90-94 KTM250 67.50, WOSSNER 8005DA FORGED
Wossner Forged Piston Kit 67.50mm Bore – KTM GS250 / SX250 (1990–1994)
This Wossner forged piston kit is designed for KTM GS250 and SX250 models from 1990 to 1994. With a standard bore size of 67.50 mm and a piston diameter of 67.44 mm, this component is tailored for 2-stroke engines requiring high-performance durability and thermal efficiency. The elliptical profile ensures consistent load distribution under heat-induced expansion, minimising stress and potential failure. Precision-forged and made in Germany.
Features
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Forged construction for superior strength and reliability
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Designed to optimise heat transfer to cylinder walls
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Elliptical shape for uniform pressure distribution under piston expansion
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Manufactured in Germany for consistent quality
Specifications
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Bore Size: 67.50 mm
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Piston Diameter: 67.44 mm
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Engine Displacement: 249 cm³
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Stroke: 69.50 mm
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Clearance: 0.06 mm
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Compression Height: 29.70 mm
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Compression Ratio: 2-stroke (Wossner and OEM)
Cross-Reference Wossner Part Numbers
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Piston Kit: 8005DA
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Lock: CW18
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Pin: WP033
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Ring Set: RSB6750 x 2
Vehicle Fitments
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KTM GS250 (1990–1994)
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KTM SX250 (1990–1994)