Add a flat, front-to-back mounting surface to one side of your bed rack. This is the single-side version of the XTR Parallel Bars Set — one bar that runs the length of your rack on the inside, parallel to the bedrail (not at an angle). Choose it when you only need a mounting surface on one side, want to add a second bar to an existing setup, or are building an asymmetric storage layout. The same level, lengthwise surface for mounting drawer slides, adding low side bracing, or building a custom bottom — a versatile addition to your bed rack accessories. Made from the same solid T-slot Xtrusion as your rack, the bar becomes more mounting surface for whatever you’re building — slide-out drawers for an overland kitchen, low bracing for heavy gear, or a flat base for a custom cargo floor. What you can do with it Mount drawer slides — a parallel front-to-back surface to build a slide-out drawer system on. Add low side bracing — extra structure down low for heavier loads. Build a custom bottom surface — a base for a cargo floor or platform. Expand mounting — more T-slot surface running the length of one side of your rack. Single side vs. full set This kit includes the parallel bar and bracket hardware for one side only. Need a level surface on both sides — the typical base for a full-width drawer system? Choose the full XTR Parallel Bars Set (both sides) instead. Choose your bracket angle & length The bar mounts via an angle-specific bracket — match the bracket type to your rack: 20D — standard angle (most racks). 13D — Softopper racks (except Gladiator). 9D — Gladiator racks. Then select your rack length to match the rack you ordered (46"–84"). Not sure which angle your rack uses? Email us before ordering. Estimated lead time: 4–5 weeks (cut to your rack length). Build out your bed rack Parallel bars are the foundation for a slide-out storage build. Mount the XTR Slide Out Kit on the bar for bed-organizer access, add XTR Modular MOLLE Plates for gear up top, and an XTR Rotopax Adapter Plate for fuel and water. Need a rack? Start with an XTR1 bed rack XTR3 bed rack or Shop TrailGate Panels Install reference video: XTR rack & accessory assembly Fitment questions: FAQ or email [email protected] Pictures may show accessories sold separately.