The DLX Bar Adapter from Swagman allows you to use bikes with sloping or step-through frame designs on bike racks that require a horizontal crossbar. Both sides of the bar open up wide for ease of use, to mount on the stem and seat post of your bike. The DLX Bar Adapter extends from 22.5" to 30". (For longer frame lengths, please consider the Cruiser Bar Adapter #63999 , which features an extended length from 25.5" to 35" ) Please note that when being used on hanging racks like the Trailhead, Titan, or XP, the DLX Bar Adapter is limited to 35 lbs or less.