KTM 250 SX-F Factory Edition [2026-2027] - WÖSSNER forged pistons

WÖSSNER forged pistons for KTM 250 SX-F Factory Edition

The WÖSSNER forged piston is designed for the KTM 250 SX-F Factory Edition built in 2026-2027. As a forged aluminum piston, it combines the defined design with a precise selection of diameter, oversize and compression ratio.

Function and execution

The piston skirt has an anti-friction treatment. The standard piston compression is designed for a compression ratio of 14.4:1. The design with two piston rings supports the intended configuration of the 4T engine.

Technical data

• Material: aluminum
• Piston Type: Forged
• Piston compression: standard
• Diameter Ø: 80.97 mm
• Letter oversize: C
• Oversize: +0.02
• Bore diameter: 81.02mm
• Compression ratio: 14.4:1
• Rings Quantity: 2
• Stroke: 4T
• Specificity: Double forged bridge/gas connection

Vehicle assignment

Suitable for the KTM 250 SX-F Factory Edition, built between 2026 and 2027. The information on diameter Ø 80.97 mm, letter oversize C, oversize +0.02 and bore diameter 81.02 mm makes it easier to select the intended piston version.

Scope of delivery

The piston includes piston ring(s), circlip and bolt. Wössner forged pistons are manufactured in Germany by specialists in engine parts for 2- and 4-stroke engines.