Tonneau Cover Crossbars for Your Truck: The KB Voodoo Crossbar System Guide

Not every truck owner needs a full overland rack. Some of you have a tonneau cover you're not giving up, a roof top tent you want to run on weekends, or mountain bikes, cargo boxes, skis, or snowboards that need to go somewhere other than inside the cab. What you need is a strong set of truck bed crossbars that mount over your tonneau cover without drilling holes in your truck, fighting with your cover's hardware, or ordering a product that shows up and doesn't fit. KB Voodoo Fabrications built three different crossbar systems to solve exactly that, and they fit all trucks on the road today.

KB Voodoo makes tonneau compatible truck bed crossbar systems in three distinct lines, the VRS, the CXR Tonneau Compatible Crossbar System, and the PRO-XE, each engineered for a different tonneau cover setup and truck configuration. All three are fabricated in Western New York, require no drilling, and ship to all 50 states and Canada in 5 to 7 business days.

Compare all three systems side by side on the Product Line Comparison page, or browse directly at Truck Bed Crossbar Systems.

Why Truck Bed Crossbars and Tonneau Covers Usually Don't Get Along

The standard truck bed crossbar on the market was designed for a bare bed. Most of them assume you have nothing else going on back there. The moment a tonneau cover enters the picture, the geometry changes. The cover sits above the bed rails. Its hardware occupies the same real estate most crossbar systems want to use.

KB Voodoo's approach starts from a different premise. Instead of designing a crossbar and then asking how it could accommodate a cover, the entire system architecture was built around tonneau compatibility from the ground up. The Voodoo Rail System (VRS), the Base Rail System (BRS) on the CXR, and the PRO-XE mounting platform all treat the tonneau cover as part of the truck, not an obstacle to work around.

What that means in practice: the crossbars don't rest on the cover's surface, the load sits on the rack rather than the tonneau, and you never have to choose between keeping your cover and using your crossbars. It's worth noting that with any crossbar system installed over the bed, most folding covers will not be able to open, while retractable and roll-up covers will still function. If you need full bed access, all three KB Voodoo systems are easily removable. The cover stays on the truck. Your gear stays dry and secure underneath it.

The Three KB Voodoo Crossbar Systems and How to Choose

KB Voodoo makes truck bed crossbars for three distinct situations, and the right system depends on what you're already running on your truck.

The VRS Tonneau Compatible Crossbar System is available for all truck platforms and installs using no-drill clips that clamp to the bed sides, or by bolting directly to factory accessory rails on Tacoma, Tundra, and Gladiator. For trucks running tonneau covers with integrated T-tracks, a common setup on retractable and folding covers like Retrax, Pace Edwards, Roll'n Lock, and others across Ford F-150, Chevy Silverado, GMC Sierra, RAM 1500, Toyota Tacoma, and other platforms. VRS versions are also available that mount directly to those cover tracks. No drilling, no modification, no adapters regardless of which installation method applies to your truck. Available in steel and aluminum builds, with a Hi-Rise option that puts crossbars 6 inches above the bed rails. Steel VRS Voodoo Rails are 58 inches long, and aluminum versions are available in 58 and 70 inches. The entire system is removable without leaving any trace of installation on the truck or the cover. Check tonneau compatibility for your specific cover at the VRS Tonneau Fitment Guide.

The CXR Tonneau Compatible Truck Bed Crossbar System is built on the Base Rail System (BRS), an aluminum foundation that covers the full length of your truck bed. The CXR attaches with no drilling on any truck, using no-drill clips or factory accessory rails where available. It's available for standard tonneau covers as well as in a version specifically designed for covers with integrated tracks such as Retrax, Pace Edwards, and Roll'n Lock. The 6-inch low-profile crossbar height and full bed-length BRS coverage make this the right choice for truck owners who want maximum bed coverage at a streamlined, low height. Available in bed lengths from 4.5 feet up to 6.5 feet, rated for 500 pounds dynamic and 1,000 pounds static. See the CXR Tonneau Fitment Guide and CXR Bed Length Selection Guide to dial in your configuration.

The PRO-XE Crossbar System is KB Voodoo's standalone crossbar line, available in 5-inch and 8-inch height configurations for all trucks. A version specifically designed for tonneau covers with integrated T-tracks is also available. The PRO-XE Lo-Rise crossbar sits directly on the side rails for the absolute lowest possible profile. This model is not intended for use with tonneau covers. The PRO-XE Reversible crossbar is a unique option designed to attach to factory accessory rails on Toyota Tacoma, Toyota Tundra, and Jeep Gladiator, and can be installed in two positions for different height and clearance needs. Uprights are 3/16-inch steel with black powder coat, and crossbars are T-track aluminum, black anodized. Load rating is 300 pounds dynamic and 800 pounds static per set of two bars on the standard 5-inch and 8-inch versions. Tonneau fitment guidance for the PRO-XE is available at the PRO-XE Tonneau Fitment Guide. Browse all configurations at Truck Bed Crossbar Systems.

What Can You Actually Do with Truck Bed Crossbars?

This is where a lot of buyers undersell what a good crossbar system can do. Crossbars are not just for roof top tents, though they handle that well. The capacity ratings on KB Voodoo crossbar systems run up to 400 pounds dynamic and 800 pounds static on the steel VRS Hi-Rise, which means they carry real loads in real use.

Practically speaking, crossbars open up everything from mountain bike transport and cargo box storage to ski and snowboard carrying, without committing to a full overland rack build. The PRO-XE reversible crossbar specifically addresses the use case of versatile day-to-day and weekend configurations, flipping between positions depending on what you're hauling or how you're using the truck.

For truck owners ready to go further, the VRS crossbar system is designed to expand into a full overland rack. A truck owner who starts with a VRS crossbar setup can add accessories, increase the height, and eventually build into the full VRS overland rack system without replacing the foundational components. The modular architecture was designed with that upgrade path in mind from the start.

Which Trucks Does the KB Voodoo Crossbar System Fit?

The short answer is all of them. The VRS, CXR, and PRO-XE systems cover Ford F-150, Ford F-250, Ford Ranger, Ford Maverick, Toyota Tacoma, Toyota Tundra, Chevy Silverado, Chevy Colorado, GMC Sierra, GMC Canyon, RAM 1500, RAM 2500, Nissan Titan, Nissan Frontier, and Jeep Gladiator platforms. Fitment depends on your specific tonneau cover model and whether your cover has integrated tracks.

KB Voodoo provides tonneau fitment guides on the Fitment Guides page for the VRS, PRO-XE, and CXR systems so you can verify compatibility before you order. If your situation is outside the standard configurations or you're running an older cover and aren't sure how the geometry works, the team handles those conversations directly at (716) 296-0086 or support@kbvoodoo.com. Getting the fitment right before the order ships is something KB Voodoo takes seriously, and the team will tell you honestly if a configuration won't work rather than letting you figure it out at the tailgate.

Starting with Crossbars, Building from There

One of the things that separates KB Voodoo from standalone crossbar brands is that the crossbar systems are designed to be the foundation of something larger if you want them to be. A truck owner who starts with a PRO-XE crossbar setup today can add accessories including molle panels, hi-lift jack brackets, bike mounts, awning hardware, and traction board brackets without replacing the base system. For those ready to move into a full overland rack, the VRS crossbar system specifically is designed to expand directly into the full VRS overland rack system.

For owners who want to go further, the full Overland Style Truck Bed Racks line picks up where the crossbar systems leave off, adding the structural depth and accessory capacity of the CXR Fortress and VRS overland rack systems for serious expedition builds. The Softopper Compatible Bed Racks line extends that same modularity to trucks running Softopper and BesTop canvas canopies specifically.

If hauling capacity for work is the priority, the Utility Racks line is built for contractor and worksite use with the same American-made construction and no-drill installation that runs through every KB Voodoo product.

Every system ships to all 50 states and Canada with current lead times of 5 to 7 business days after order placement.

Why KB Voodoo Crossbars Hold Up Where Others Don't

The crossbar market is full of products that look fine in photos and fail in use. Mounting hardware that slowly damages the cover rails it's clamped to. Powder coat that chips after one winter. KB Voodoo crossbars are built to a different standard because they come from the same shop and the same team that builds full overland rack systems rated for 600 pounds dynamic and 1,200 pounds static. The crossbar line isn't a separate, lower-priority product category, it shares the same materials, the same coatings, and the same fabrication standards as everything else that ships out of Western New York.

The CXR crossbar system specifically features aluminum construction with black textured powder coat, bronze-colored strengthening plates, and black stainless steel hardware, details that reflect the build quality KB Voodoo applies across its product lines. All three crossbar systems mount with no drilling, and ship within 5 to 7 business days.

Frequently Asked Questions

What is the difference between the VRS, CXR, and PRO-XE crossbar systems? The VRS Voodoo Rail system installs on all trucks using no-drill clips or factory accessory rails, and is also available in versions for tonneau covers with integrated tracks. It comes in steel and aluminum with a Hi-Rise option for roof top tent use, and the VRS system can be expanded into a full overland rack. The CXR Tonneau Compatible Crossbar System uses the Base Rail System (BRS) for full bed-length coverage and is available for both standard covers and covers with integrated tracks. The PRO-XE is a standalone crossbar line available in multiple heights for all trucks, with a separate version for covers with integrated tracks, a Lo-Rise option for bare-bed use, and a Reversible option for Tacoma, Tundra, and Gladiator. All three are made in Western New York and require no drilling for installation.

Will KB Voodoo crossbars work with my tonneau cover? Compatibility depends on your specific cover model. KB Voodoo provides tonneau fitment guides on the site for the VRS, PRO-XE, and CXR systems. If you're unsure, the team can advise directly at (716) 296-0086 before you order.

Can I use KB Voodoo crossbars to carry a roof top tent? Yes. All three KB Voodoo crossbar systems, the VRS, CXR, and PRO-XE, are designed for roof top tent use. The VRS Hi-Rise puts crossbars 6 inches above the bed rails specifically for tent setups. The CXR and PRO-XE 5-inch and 8-inch crossbars also provide tent-compatible height. Capacity ratings support tent and occupant loads across all three systems.

Can KB Voodoo crossbars be expanded into a full rack system later? The VRS crossbar system is specifically designed to expand into a full VRS overland rack system. Accessories including molle panels, bike mounts, awning hardware, and jack brackets integrate with the VRS base system, and the full overland rack lines are available when you're ready to go further.

Article by Nicholas Bellanti