Teleflex Marine 18' XTREME Mechanical Boat Steering SSX17618 FEATURES â¢ Smoothest and lowest steering effort mechanical helm offered in the market place yet still offers easy installation. â¢ Complete steering system including new helm, high efficiency XTREMETM steering cable design and new style bezel. â¢ Quick connect feature on both steering cable and spent travel tube for easy quick installation. â¢ Installs in same mounting pattern and bracket location as current SeaStar Solutions® steering systems. â¢ Smallest footprint possible to accommodate small/tight dash helm stations. â¢ Made, designed and assembled in the USA.