Yamaha YZ 250 F (CG 21) [2005] - WÖSSNER forged pistons
Description
WÖSSNER forged pistons for the Yamaha YZ 250 F (CG 21)
The WÖSSNER forged piston is designed as a replacement component for the engine of the Yamaha YZ 250 F (CG 21), built in 2005. The piston is made of aluminum and has a forged double bridge as a specific design.
![Yamaha YZ 250 F (CG 21) [2005] - WÖSSNER forged pistons – product view](https://cdn.shopify.com/s/files/1/0871/4616/8646/files/1093771001-1_f15337f1-9ac3-49dd-9ca0-8e3e95120047.jpg?v=1788438022)
Technical features
- Material: aluminum
- Piston Type: Forged
- Diameter Ø: 76.96 mm
- Bore diameter: 77.00 mm
- Compression ratio: 12.5:1
- Rings Quantity: 3
- Letter oversize: A
- Oversize: STD
- Specificity: Forged double bridge
Vehicle assignment
The specified area of application includes the Yamaha YZ 250 F (CG 21) in the full year of manufacture 2005. Both the model name and the year of manufacture are decisive for the selection.
Execution and selection aid
The combination of forged piston type, aluminum as a material and a diameter of 76.96 mm describes the design of this piston. The specified bore diameter is 77.00 mm; the compression ratio is shown as 12.5:1. The marking “A” for the oversize letter and the “STD” for oversize must be taken into account when selecting parts.
![Yamaha YZ 250 F (CG 21) [2005] - WÖSSNER forged pistons – detailed view](https://cdn.shopify.com/s/files/1/0871/4616/8646/files/1093771001-2_f4b8942e-750a-4ac5-a1a5-0eaf1d0eed63.jpg?v=1788438022)