ATHENA Forged 4T Piston 82.97mm 250CC Pin 16 Big Bore Cylinder for Yamaha
for YAMAHA WR F, YZ F
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FIND YOUR BIKE - compatibility table
-15%
Special Price €200.10 Regular Price €235.36The forged 4T piston from ATHENA, with a bore of 82.97 mm, is designed to optimize the performance of your engine. With a compression height of 22.20 mm, this piston is perfect for 250 cc Big Bore cylinders, ensuring a compression ratio of 12.5:1 that maximizes power and engine efficiency.
Its forged construction offers superior strength, ideal for the high stresses that occur during sports riding. The piston features a biconical pin with a diameter of 16 mm, a length of 45 mm, and a section of 9 mm, ensuring a precise fit and perfect integration with the connecting rod. With two rings, this piston is designed to provide optimal sealing, minimizing compression losses and improving engine response.
- Bore: 82.97 mm
- Compression height: 22.20 mm
- Compatible with 250 cc Big Bore cylinders
- Compression ratio: 12.5:1
- Construction: Forged
- Pin diameter: 16 mm
- Pin length: 45 mm
- Pin section: 9 mm
- Number of rings: 2
Whether you are looking to enhance your vehicle or replace a worn component, the ATHENA 4T piston is an excellent choice for those seeking high performance and long-lasting reliability.
Race Use Only Product - Not intended for road use
| Type | Forged |
|---|---|
| Bore | 82,97 |
| Displacement | 250 |
| Compression height | 22,20mm |
| Compression ratio | 12.5:1 |
| Number of segments | 2 |
| Piston pin | biconical |


