KTM 640 LC 4 Adventure R [1998-2004] - WÖSSNER forged pistons

WÖSSNER forged pistons for the KTM 640 LC 4 Adventure R

The WÖSSNER forged piston is designed for the KTM 640 LC 4 Adventure R from the entire 1998-2004 model year range. Its technical characteristics support the targeted selection of a suitable piston for the engine of this vehicle version.

Piston type and material

The piston is made of aluminum and is designed as a forged version. This means that the material and design for the technical assignment are clearly defined.

Technical data

• 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

Vehicle assignment

The forged piston is assigned to the KTM 640 LC 4 Adventure R, built between 1998 and 2004. The selection should be based on the vehicle model, year of manufacture and the dimensions listed.

Selection note

The diameter of 100.95 mm, the bore diameter of 101.01 mm, the oversize letter B and the oversize dimension +0.01 are particularly relevant for the clear assignment. The stated compression ratio is 11.7:1.