Yamaha YZ 250 F (CG 40) [2019] - 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 in 2019. It therefore offers a clearly defined selection for this vehicle and can be specifically assigned based on the specified piston and bore dimensions.

Design and technical features

• Piston Type: Forged
• Material: aluminum
• Specificity: Forged double bridge
• Piston diameter Ø: 76.95 mm
• Letter oversize: A
• Oversize: STD
• Bore diameter: 77.00 mm
• Compression ratio: 13.7:1
• Rings Quantity: 2

Suitable for

The forged piston is intended for the following motorcycle:

• Yamaha YZ 250 F (CG 40), built in 2019

Selection Notes

The specified piston diameter of 76.95 mm, the bore diameter of 77.00 mm and the markings “A” and “STD” are particularly relevant for the selection. The compression ratio of 13.7:1 and the design as a forged double bridge complement the technical characteristics of the piston. The assignment is limited to the Yamaha YZ 250 F (CG 40), built in 2019.