The Thule 822XTR - Bed Rider is a telescoping truck bed bike carrier helps carry bikes in style. The bar fits across the width of the truck bed behind the cap. The adjusting bar extends from 47.75 to 72 inches so it will fit nearly any width truck bed. End brackets have rubber grippers to brace the bar against the top of the bed rail for a no slip installation. No drilling is required for installation, however, each bed rail bracket has holes for those who wish to bolt the rack into place. The BedRider is compatible with bed liners. The high quality aluminum construction will provide years of dependable use. The BedRider includes two LOCKING Low Rider fork mount holders that are adjustable on the bar. The holders are fastened to the bar using special tamper resistant fasteners. If space permits an additional fork mount, the Thule BRLB2 - Locking BedRider Add On, may be added to transport a third bicycle, this item is sold separately.