Shimano BB-X Disassembly Special Tool. Red This special tool allows you to disassemble the bearing retaining ring by hand. Made of rust-resistant all stainless steel. Includes 2 spare tubes for the 4-pin spring (see photo). (Compatible Models) 13, 17 BB-X Hyper Force 11, 16, 23 BB-X Despina, Larissa 11, 13, 16 Exsence LB 12, 18 BB-X Remare (Compact type not compatible) Please research the compatible models and structure thoroughly before purchasing. Please perform modifications at your own risk, understanding the reel's structure. Also selling the Hissatsu Yaen Cobra and the New Haneage Kai K2! I will send a comment message soon after purchase, so please be sure to check and reply. Please do so to prevent any trouble.