The ATHENA Big Bore Cylinder Kit guarantees a performance increase comparable to the original cylinder. This high-quality kit includes an aluminum cylinder with an enlarged bore, a cylinder head, a complete piston with a piston pin and rings, as well as all the necessary gaskets. Designed to enhance your engine’s power and durability, this kit offers a seamless upgrade for your KTM or HQV bike, ensuring optimal performance and longevity. Crafted with precision, the aluminum cylinder ensures excellent heat dissipation and structural integrity, making it an ideal choice for racers and enthusiasts looking to get the most out of their engine. ATHENA, known for its reliability and engineering excellence, delivers a product that not only boosts power but also maintains the engine's original reliability and balance.