4T Forged Piston Φ95 mm for Athena Cylinder and OE

Big End Pin Diameter (mm)：50.8×20×12
Compression Height (mm)：25.10
Compression Ratio：13.0：1
Net Weight (Kg)：0.48
Number of Piston Rings：3
Piston Pin Type：Biconical
Piston Type：Forged
Skirt：Forged side relief

※Race Use Only Product - Not intended for street use.
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Athena，leader in producing motorcycle spare parts for over 40 years，unveils its new range of 2-stroke and 4-stroke off-road forged pistons made by reverse extrusion. Produced with cutting-edge CNC machining tools，which ensure dimensional tolerances of less than 0.01 mm，Athena pistons are made of a special high-performance aluminum alloy with high silicon content that guarantee the same reliability of the OE piston，while at the same time providing greater resistance and excellent performance. The perfectly smooth profile ensures a regular flow and the perfect flame propagation.
Some pistons’ skirts are moreover treated with a molybdenum disulfide coating applied by screen printing which further reduce friction to enhance performance and durability.
Athena engineers ensure advanced technical solutions and the highest quality standards equal to or better than those adopted in OE production，so as to guarantee performance and reliability.Each piston，engineered in Italy by Athena R＆D department，is tested on engine dynamometer benches under progressive stress load，and thereafter on track to validate its performance even in the most extreme conditions.The proven quality of Athena pistons is offered at an extremely affordable price.

Bullet points
High resistance to mechanical and thermal stresses
Maximized and reliable performances
Excellent price-quality ratio

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