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

WÖSSNER forged pistons for the KTM 640 LC 4 Rally

The forged WÖSSNER piston is designed for the KTM 640 LC 4 Rally from 1997. It is made of aluminum and offers a defined design for use in the upper engine area. The precisely specified dimensions support the selection of a suitable piston for the specified engine variant.

Design and technical data

• Piston Type: Forged
• Material: aluminum
• Diameter Ø: 101.94 mm
• Letter oversize: 100
• Oversize: +1.00
• Bore diameter: 102.00 mm
• Compression ratio: 11.7:1
• Number of piston rings: 3

With the diameter of 101.94 mm, the bore of 102.00 mm and the oversize +1.00, the relevant dimensions can be specifically compared before selection. The compression ratio of 11.7:1 describes the intended technical design of the piston. The version with three piston rings complements the specified design data.

Vehicle assignment

The WÖSSNER forged piston fits the KTM 640 LC 4 Rally, built in 1997. For a reliable assignment, the model name, year of manufacture and the piston dimensions mentioned should be compared with the existing engine.

Selection note

When ordering, pay particular attention to the piston diameter of 101.94 mm, the bore of 102.00 mm and the oversize marking. This information serves as an objective basis for the selection within the specified vehicle allocation.