Athena

Athena Big Bore Cylinder Kit 58 mm YZ125/144 22-.. The Athena Big Bore Cylinder Kit 58 mm is a top-of-the-line upgrade for Yamaha YZ125/144 models. Designed for serious riders and professionals looking to boost their bike's performance, this kit is the perfect solution for those seeking more power and torque on the track or trails. This cylinder kit features a 58 mm bore size, which is larger than the standard cylinder, allowing for increased displacement and improved overall engine performance. The precision engineering and high-quality materials used in this kit ensure durability and optimal performance under demanding riding conditions. Constructed by Athena, a renowned brand in the motorsport industry, this kit includes all the necessary components for a complete upgrade, including the cylinder, piston, rings, and gaskets. The components are designed to work seamlessly together, providing a perfect fit and reliable performance. Upgrade your Yamaha YZ125/144 with the Athena Big Bore Cylinder Kit 58 mm and experience a noticeable increase in power and responsiveness. Whether you're a competitive racer or a dedicated off-road enthusiast, this kit will elevate your riding experience and help you reach new levels of performance. MPN: P400485100101, Brand: ATHENA, EAN / Bar Code: 8050506053798. Notes Race Use Only Product – Not intended for street use – Please check details on the “Race use only” footer’s section WARNING: crankcases boring is required for proper cylinder kit installation