WOSSNER 68mm FORGED PISTON KIT KTM 250 2T 1990-1994

Wossner Forged Piston Kit 68.00mm Bore – KTM GS250 / SX250 (1990–1994)
This Wossner forged piston kit is designed for KTM GS250 and SX250 models from 1990 to 1994. It features a 68.00 mm bore and a piston diameter of 67.94 mm (+0.50 mm oversize), suitable for high-performance 2-stroke applications. The piston’s forged construction and elliptical design ensure optimal heat transfer, even thrust distribution, and high durability under thermal expansion. Made in Germany with precision engineering.

Features

• Forged piston for enhanced strength and longevity

• Superior heat dissipation from the combustion chamber

• Elliptical design promotes balanced thrust load and prevents piston collapse

• Precision manufactured in Germany

Specifications

• Bore Size: 68.00 mm

• Piston Diameter: 67.94 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: 8005D050

• Lock: CW18

• Pin: WP033

• Ring Set: RSB6800 x 2

Vehicle Fitments

• KTM GS250 (1990–1994)

• KTM SX250 (1990–1994)