KTM 640 LC 4 Rally [1997] - WÖSSNER forged pistons

WÖSSNER forged pistons for KTM 640 LC 4 Rally

The WÖSSNER forged piston is intended as a forged aluminum version for the upper engine area of the KTM 640 LC 4 Rally. The piston diameter, the oversize, the letter of the oversize and the compression ratio are decisive for the selection.

Technical features

• Material: aluminum
• Piston Type: Forged
• Diameter Ø: 100.95 mm
• Letter oversize: B
• Oversize: +0.01
• Bore diameter: 101.01mm
• Compression ratio: 11.7:1
• Rings Quantity: 3
• Stroke: 4T

Matching vehicle assignment

The piston is assigned to the KTM 640 LC 4 Rally, built in 1997. The specified year range therefore includes the model year 1997.

Selection note

Before making your selection, check in particular the specified diameter of 100.95 mm, the bore diameter of 101.01 mm and the marking B and oversize +0.01. These values ​​support the assignment to the existing cylinder bore. The compression ratio of 11.7:1 and the design for a 4T engine complement the key technical data of the piston.