Hi, I bought a babolat speeder series racket and the string broke. I want to re-string the racket but I do not know the maximum tension for it. Thank you. Pictures: http://www.bbeshop.com/babolat/racket_13647_bbe.jpg http://www.bbeshop.com/babolat/racket_13647_frame_01.jpg http://www.bbeshop.com/babolat/racket_13647_frame_02.jpg http://www.bbeshop.com/babolat/racket_13647_shaft.jpg