PISTON KIT 01-08 KTM50 SX, WOSSNER 8225DC FORGED MX

This Wossner forged piston kit with a 39.52mm bore (+0.02mm oversize) is specifically engineered for KTM SX50 models from 2001 to 2008. Designed to deliver consistent performance in high-revving two-stroke engines, it features a precision-machined elliptical profile for even load distribution and superior durability. Manufactured in Germany, this piston is ideal for engines requiring minimal oversizing during rebuilds.

Features

• Forged construction ensures enhanced strength and long-lasting performance

• Optimised for effective heat transfer from combustion chamber to cylinder walls

• Elliptical design minimises stress concentrations and prevents piston collapse

• Made in Germany

Specifications

• Bore: 39.52mm

• Actual Bore: 39.47mm

• Engine Displacement: 50 cm³

• Stroke: 40.00mm

• Clearance: 0.04mm

• Compression Ratio: 2-stroke (Wossner and OEM)

• Compression Height: 21.60mm

• Lock Part Number: CW12

• Pin Part Number: WP101

• Ring Set Part Number: RSB3950

Vehicle Fitments

• 2001 KTM SX50

• 2002 KTM SX50

• 2003 KTM SX50

• 2004 KTM SX50

• 2005 KTM SX50

• 2006 KTM SX50

• 2007 KTM SX50

• 2008 KTM SX50