KTM 640 Duke Special Edition [2006] - WÖSSNER forged pistons

WÖSSNER forged pistons for the KTM 640 Duke Special Edition

The WÖSSNER forged piston is intended as a forged aluminum version for the KTM 640 Duke Special Edition built in 2006. The specified dimensions and characteristics support a targeted selection of the appropriate engine structure.

Technical features

• Material: aluminum
• Piston Type: Forged
• Diameter Ø: 101.94 mm
• Bore diameter: 102.00 mm
• Oversize: +1.00
• Letter oversize: 100
• Compression ratio: 11.7:1
• Rings Quantity: 3
• Stroke: 4T

Vehicle assignment

The piston is assigned to the KTM 640 Duke Special Edition, built in 2006. The specified diameter of 101.94 mm, the bore diameter of 102.00 mm and the oversize +1.00 are particularly relevant for the selection.

Selection Notes

The combination of forged design, aluminum and a compression ratio of 11.7:1 describes the technical design of this piston. Before ordering, the existing motor dimensions should be compared with the values ​​mentioned. The marking of the oversize with the letter 100 is also part of the clear assignment of the component.

The designation “Stroke: 4T” indicates the intended four-stroke version. The three rings specified and the defined diameters provide further technical reference points for selecting the appropriate piston.