Standard Bore Cylinder Kit by Bronco ATV®. 80.00 mm Bore. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading materials using up-to-date equipment, it ensures everlasting reliability and enduring value. This product is distinguished by total quality assurance, unsurpassed by anybody else. Features: Designed by riders for riders All products are manufactured to meet or exceed OEM standards Engineered with dependability and quality