PISTON KIT ROTAX SWM250 75.00, WOSSNER 8290D100

This Wossner forged piston kit with a 75mm nominal bore (actual 74.93mm) is specifically designed for ROTAX SWM250 models from 1979 to 1982. Built for two-stroke engines, it combines advanced metallurgy with precision engineering for enhanced durability and thermal efficiency.

Features

• Forged construction delivers superior strength and resistance to deformation under high stress

• Optimised for efficient heat dissipation from combustion chamber to cylinder walls

• Elliptical skirt profile promotes uniform surface contact and load distribution

• German-made for high precision and quality

Specifications

• Bore Size: 75.00mm (actual 74.93mm)

• Stroke: 57.50 mm

• Clearance: 0.06 mm

• Wossner Compression Ratio: 2 stroke

• OEM Compression Ratio: 2 stroke

• Compression Height: 34.00 mm

• Lock Part Number: CW18

• Pin Part Number: WP033

• Ring Set Part Number: RDC7500

Vehicle Fitments

• ROTAX SWM250 1979–1982