Haul Up To Four Bikes In Your Truck Bed Without Removing Any Wheels Assembles Quickly, With No Tools Required, And Lockable Cable Included Extends From 53.5" To 63.75" Without A Spacer, And Extends From 59.5" To 69.5" With A Full-Size Spacer (Included) Can also be used away from your truck as a standalone outdoor bike rack