Method and apparatus for selectively adjusting the stiffness of a ski

摘要: Method and apparatus for selectively adjusting the stiffness of a ski using prestressed, curved rod members. The members are positioned lengthwise in bores can be adjusted by rotating about their longitudinal axes. For stiff ski, each member is rotated so that prestressed curve faces upwardly soft downwardly. By between these extremes, intermediate degrees obtained. One or more used when plural used, both crosswise. Indicating means provided showing rotational position rod. placed directly drilled out housing which then inserted tubes mounted within atop ski. force varied along its axes if desired one disclosed embodiment includes hollow solid whereby individually to vary ski's stiffness. disposed main body adapted adjust any flexible body.