ATHENA Forged 4T Piston 82.95mm 250CC Pin 16 Big Bore Cylinder for Yamaha YZ 250 F

The forged 4T piston Ø 83 mm for the Athena Big Bore cylinder is designed to optimize the performance of your engine. With a bore of 82.95 mm and a compression height of 22.20 mm, this piston is ideal for 250 cc displacement engines, ensuring a quick and dynamic response. The diameter of the connecting rod pin, measured at 16x8.5x44 mm, ensures perfect integration with the connecting rod system, while the compression ratio of 12.5:1 helps maximize engine efficiency and power.

The forged type of the piston offers superior strength, making it suitable for extreme usage conditions and high performance. With two rings, this piston is designed to maintain optimal sealing, reducing the risk of compression loss and improving engine longevity. The biconical shape of the pin allows for an even distribution of forces, contributing to smooth and reliable operation. Choosing the 4T ATHENA piston means investing in a component that can make a difference in your vehicle's performance, taking your driving experience to the next level.

• Piston diameter: Ø 83 mm
• Bore: 82.95 mm
• Compression height: 22.20 mm
• Ideal for engine displacement: 250 cc
• Connecting rod pin diameter: 16x8.5x44 mm
• Compression ratio: 12.5:1
• Type: Forged
• Number of rings: 2
• Pin shape: Biconical

Product Race Use Only - Not intended for road use