This Wossner Piston Kit with a 72.02mm bore (+0.02 oversize) is designed for KTM and Husqvarna 300cc 2-stroke models. Precision-forged and made in Germany, it features an elliptical profile for optimal load distribution and superior resistance to deformation under high temperatures. The kit ensures efficient heat transfer, enhancing performance and durability in demanding off-road environments.

Features

• Forged construction for increased strength and reliability

• Optimised heat transfer from combustion chamber to cylinder walls

• Elliptical design reduces localised pressure and prevents piston collapse

• Manufactured in Germany

Specifications

• Bore: 72.02 mm

• Measured Bore: 71.96 mm

• Clearance: 0.06 mm

• Compression Ratio: 2-stroke

• OEM Compression Ratio: 2-stroke

• Compression Height: 38.00 mm

• Display: 297 cm³

• Hub Stroke: 72.00 mm

• Part No.: 56-W854.C.WO

• Piston Kit Model: 8250DC (+0.02)

Vehicle Fitments

• KTM EXC 300 2008–2015

• KTM MXC 300 2008–2014

• Husqvarna WR300 2009–2013

• Husqvarna TE300 2014–