The Story
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
-
Forged construction for superior strength and reliability
-
Designed to optimise heat transfer to cylinder walls
-
Elliptical shape for uniform pressure distribution under piston expansion
-
Manufactured in Germany for consistent quality
Specifications
-
Bore Size: 67.50 mm
-
Piston Diameter: 67.44 mm
-
Engine Displacement: 249 cm³
-
Stroke: 69.50 mm
-
Clearance: 0.06 mm
-
Compression Height: 29.70 mm
-
Compression Ratio: 2-stroke (Wossner and OEM)
Cross-Reference Wossner Part Numbers
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Piston Kit: 8005DA
-
Lock: CW18
-
Pin: WP033
-
Ring Set: RSB6750 x 2
Vehicle Fitments
-
KTM GS250 (1990–1994)
-
KTM SX250 (1990–1994)
Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
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
-
Forged construction for superior strength and reliability
-
Designed to optimise heat transfer to cylinder walls
-
Elliptical shape for uniform pressure distribution under piston expansion
-
Manufactured in Germany for consistent quality
Specifications
-
Bore Size: 67.50 mm
-
Piston Diameter: 67.44 mm
-
Engine Displacement: 249 cm³
-
Stroke: 69.50 mm
-
Clearance: 0.06 mm
-
Compression Height: 29.70 mm
-
Compression Ratio: 2-stroke (Wossner and OEM)
Cross-Reference Wossner Part Numbers
-
Piston Kit: 8005DA
-
Lock: CW18
-
Pin: WP033
-
Ring Set: RSB6750 x 2
Vehicle Fitments
-
KTM GS250 (1990–1994)
-
KTM SX250 (1990–1994)
