FujiKura Speeder 765 Evolution 2, TS X Flex Shaft for Callaway Drivers Featured $65.00 FujiKura Speeder 765 Evolution 2, TS X Flex Shaft for Callaway Drivers Misc Clubs Tom Virs July 7, 2019 Lightly used Fujikura Speeder 765 Evolution 2 TS X Flex Shaft fits Callaway Great Big Bertha and Big Bertha Drivers.