KTM 640 Supermoto LC 4 [1999-2006] - WÖSSNER forged pistons

WÖSSNER forged pistons for the KTM 640 Supermoto LC 4

The WÖSSNER forged piston is assigned to the KTM 640 Supermoto LC 4 in the full year range from 1999 to 2006. The version is made of aluminum and is designed as a forged piston.

Technical execution

The specified piston and bore dimensions are decisive for selection and assignment. The piston diameter is 101.94 mm, the bore diameter is 102.00 mm. The version is indicated with an oversize of +1.00 and the letter oversize 100.

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

Vehicle assignment

The forged piston is assigned to the KTM 640 Supermoto LC 4 from the years 1999 to 2006. Before making your selection, please compare the diameter, bore diameter and oversize with the intended motor version.

Selection guide

The combination of 101.94 mm piston diameter, 102.00 mm bore diameter and +1.00 oversize supports a clear selection within the specified vehicle assignment. The compression ratio is 11.7:1; the version has 3 piston rings.