BG66 ULTIMAX RACKET RESTRING | YONEX JAPAN STRING VERION | SP MY CODEBelow is BG66 Ultimax racket restring review:- BG66UM is One of the more famous and preferred string utilized by a lot of badminton players in Singapore. There is no doubt that in expression of repulsion and hitting seem, BG66 Ultimax is the greatest string to date. We've got bee