Use the following code in your SCSS file that will allow you to change the max width at which a menu item is allowed to collapse. There is no need to edit the core bootstrap files. Place code in
@media (max-width: 900px) { .navbar-header { float: none; } .navbar-toggle { display: block; } .navbar-collapse { border-top: 1px solid transparent; box-shadow: inset 0 1px 0 rgba(255,255,255,0.1); } .navbar-collapse.collapse { display: none!important; } .navbar-nav { float: none!important; margin: 7.5px -15px; } .navbar-nav>li { float: none; } .navbar-nav>li>a { padding-top: 10px; padding-bottom: 10px; } .navbar-text { float: none; margin: 15px 0; } /* since 3.1.0 */ .navbar-collapse.collapse.in { display: block!important; } .collapsing { overflow: hidden!important; } }