Yamaha YZ 250 F (CG 40) [2019-2021] - WÖSSNER Pro Series forged pistons

WÖSSNER Pro Series forged pistons for Yamaha YZ 250 F

The WÖSSNER Pro Series forged piston is designed for the Yamaha YZ 250 F (CG 40) built between 2019 and 2021. The forged aluminum piston has an anti-friction coated skirt and a high-compression design.

Technical features

• Material: aluminum
• Piston type: forged
• Piston compression: highly compressed
• Diameter: 76.96mm
• Letter oversize: A
• Oversize: STD
• Bore diameter: 77.00 mm
• Compression ratio: 14.2:1
• Rings Quantity: 2
• Stroke: 2T

Construction

The version features a double forged bridge, a 3D crown and a gas connection. The anti-friction coated shaft complements the forged aluminum construction.

Vehicle assignment

Suitable for the Yamaha YZ 250 F (CG 40), built between 2019 and 2021.

Scope of delivery

The scope of delivery includes the forged piston with 2 rings, locking ring(s) and axle.

Wössner forged pistons are manufactured in Germany by specialists in 2- and 4-stroke engine parts. The specified dimensions and the compression ratio support the targeted selection for the vehicle assignment mentioned.