- Big Bore Kit
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Athena Big Bore Piston 105cc / A piston S5F05300001A
Athena has developed a wide range of forged pistons specifically for use in the off-road / ATV market and manufactured using a revolutionary computerized technology originating from GP & F1 racing. Athena forged pistons offer the best solution in terms of performance and reliability thanks to redesigned squish areas, modified compression characteristics and advanced surface treatments, which improve their fluidity. Replacement standard piston for the Athena Big Bore Kit. Specially designed, high-performance Cast-Lite, flat top piston. Athena Big Bore Piston - 105cc / A piston S5F05300001A.