Flex-Hone Cylinder Ball-Hone 84-89mm for KTM 450 EXC 4-Stroke 2003-2007

Fast and efficient deglazing and finish honing, providing a consistent cross-hatch pattern for oil retention and piston ring seating. Ball hone style features 320 grit globules of silicone carbide making it perfect for steel sleeved and Nikasil coated cylinders. Several sizes available for optimal cylinder bore fitment.