BakFlip Revolver X4s – Premium Rolling Tonneau Cover
We engineered the Revolver X4s to give you the best of both worlds: the quick roll-up convenience you need for hauling oversized cargo and the security of a hard tonneau cover. This premium rolling truck bed cover features our signature aluminum slat construction wrapped in a commercial-grade vinyl that withstands extreme weather while rolling smoothly into a compact canister.
The X4s sits flush with your truck bed rails and locks securely at the tailgate, giving you 250 pounds of load capacity when you need to mount crossbars or a rack system. Whether you're loading lumber at the yard or securing tools on the jobsite, our Revolver X4s adapts to your workday without the hassle of removing panels or folding sections.
Revolver X4s specifications
Aluminum Construction Meets Roll-Up Convenience
We built the Revolver X4s around a core of lightweight aluminum slats that deliver rigid protection without the weight penalty of solid covers. Each slat connects through our precision hinge system, creating a continuous surface that rolls smoothly into the storage canister mounted behind your cab.
The heavy-duty vinyl covering bonds permanently to the aluminum framework, creating a weatherproof barrier that sheds rain and snow while resisting UV damage and temperature extremes. Unlike fabric roll-up covers that sag or tear, our aluminum-reinforced design maintains tension across the bed and returns to factory specifications even after years of daily use.
Installation and Bed Rail Integration
Our patented rail system clamps securely to your truck bed sides without drilling into the paint or bed liner. The low-profile rails sit flush with your bed edge, preserving your truck’s factory appearance while creating the mounting foundation for the Revolver X4s canister and locking mechanism.
Installation Process
We ship the Revolver X4s as a complete assembly – simply position the rails, tighten the provided clamps to manufacturer specifications, and roll the cover into operating position. Most customers complete installation in under 45 minutes using basic hand tools. The system includes all mounting hardware, a full-length weather seal, and detailed instructions with truck-specific fitment notes.
Operating the Roll-Up Cover System
We designed the Revolver X4s around our sealed ball bearing roller assemblies that eliminate binding and resistance as you open or close the cover. Simply release the tailgate lock, pull the cover toward the cab, and watch it roll smoothly into the storage canister.
The spring-assisted mechanism maintains even tension throughout the rolling cycle, so you never fight against sagging sections or misaligned slats. When you need full bed access, the entire cover stores in a compact 14-inch canister that leaves your bed floor completely clear from the canister forward to the tailgate.
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Common Questions About the Revolver X4s
The Revolver X4s supports up to 250 pounds of evenly distributed weight when you install our compatible crossbar rack system. This capacity covers most recreational equipment including kayaks, canoes, lumber, and rooftop cargo carriers.
The load must be properly secured and balanced across the rack mounting points. We do not recommend exceeding the 250 lb rating or placing point loads that concentrate weight in one area, as this can damage the cover's aluminum framework or hinge assemblies.
We engineer the Revolver X4s specifically to operate in extreme cold. The sealed ball bearing rollers continue functioning smoothly well below zero degrees Fahrenheit, and the aluminum-vinyl composite resists brittleness that affects cheaper covers in winter.
The cover's crowned surface sheds snow naturally, and the weatherstripping maintains its seal integrity in freezing conditions. You may need to clear heavy snow accumulation before rolling the cover open, but normal winter weather won't affect the system's performance or durability.
The Revolver X4s features our no-drill clamp system that most customers install in 30-45 minutes using basic hand tools. We ship the cover fully assembled – you simply position the rails on your bed sides, tighten the clamps to the specified torque, and roll the cover into place.
Our detailed instructions include truck-specific notes for popular makes and models. If you can follow directions and use a socket wrench, you can install this cover yourself. Professional installation is available through our dealer network if you prefer expert assistance.
Yes, the Revolver X4s mounting rails accommodate both drop-in plastic bed liners and spray-in bedliner coatings. Our clamp system adjusts to account for the additional thickness, maintaining proper alignment and weatherseal compression.
For spray-in liners, ensure the bed rails are clean and the liner has fully cured before installation. With drop-in liners, the cover rails typically mount over the liner's top edge. Check our fitment guide for specific compatibility with your bed liner brand and style.
When fully rolled up, the Revolver X4s stores in a compact canister measuring approximately 14 inches from the bulkhead forward. This leaves the majority of your bed floor – from the canister to the tailgate – completely open for tall cargo or oversized loads.
The canister mounts flush with your bed rails and sits low enough that you can still use the space above it for lightweight items or tie-down anchor points. The design prioritizes maximum usable bed space while keeping the rolled cover secure and protected.
We design the Revolver X4s for minimal maintenance. Wipe the vinyl surface clean with mild soap and water as needed, and periodically inspect the weatherstripping for debris that could affect the seal.
The sealed ball bearing rollers require no lubrication or adjustment. Check the rail clamps annually to ensure they maintain proper torque, especially if you frequently haul heavy loads. Avoid using harsh chemicals or abrasive cleaners on the vinyl surface, as these can damage the protective coating.
The Revolver X4s can work with gooseneck hitches depending on your specific hitch design and truck bed configuration. When the cover rolls forward into the storage canister, it typically clears most gooseneck mounting systems mounted in the bed floor.
For fifth-wheel hitches that extend higher into the bed, you may need to remove the hitch head when using the cover in the closed position. We recommend measuring your hitch's clearance requirements and consulting our <a href="/fit-guide/">compatibility guide</a> to confirm fitment with your towing setup before ordering.