BAKFlip Revolver X4S vs X2: Which Retractable for Your Truck?
The BAKFlip Revolver lineup gives truck owners two distinct retractable tonneau options, and knowing which one fits your priorities means understanding more than just the price gap. Both the X4S and X2 roll up into a front-mounted canister, both lock in multiple positions, and both deliver the low-profile aluminum slat look BAKFlip is known for.
Yet the construction differs in ways that matter once you’re using the cover daily — slat gauge, hinge hardware, canister height, and how each design handles weather over time. This BAKFlip Revolver comparison walks through those differences so you can decide which retractable matches your truck’s needs and your maintenance style.
Slat Construction: Gauge and Panel Overlap
The BAKFlip Revolver X4S uses thicker aluminum slats — each panel measures a heavier gauge than the X2’s slats, which translates to less flex under a load. If you occasionally need to place gear on top of the closed cover, or if hail is a regular concern in your region, that extra metal thickness adds a margin of protection.
The X2 slats are thinner by design, shaving weight from the canister assembly and making the roll-up motion lighter to operate by hand. For daily commuting with an empty bed most of the time, the lighter slat profile means less strain on the spring mechanism inside the canister. Both models overlap each slat along the hinge line to block direct water entry, but the X4S overlap runs slightly deeper front-to-back.
Canister Design and Height Profile
Both covers store the rolled slats in a canister mounted against the bulkhead, but the X4S canister sits about an inch taller than the X2 canister when measured from the bed rail. That height difference comes from housing the thicker slats and the larger-diameter drum they wrap around.
If your truck already carries a toolbox or bed rack near the cab, measure the clearance before ordering — the X4S may not leave enough vertical space for certain setups. The X2’s lower profile keeps more overhead room free, which matters if you regularly slide tall items under the cover when it’s rolled open. The BAKFlip Revolver X2 also weighs less overall, a detail that shows up when removing the entire cover for service or winter storage.
Hinge Hardware and Long-Term Durability
Each slat-to-slat hinge on the X4S uses a steel pin rather than the composite hinge material found on the X2. Steel pins resist wear when the cover cycles through hundreds of open-close movements, especially in dusty or sandy environments where grit works into the hinge gaps. The trade-off is a slightly louder operation — metal-on-metal contact produces more noise than the polymer hinge design.
The X2’s composite hinges run quieter and require no lubrication, but they do show wear grooves over time if dirt isn’t kept out of the folds. Replacement hinge components are available for both models, though pin replacements on the X4S tend to be simpler to swap in the field. If you prefer a cover that stays quiet during daily use, the X2 delivers that — if you prioritize hinge longevity above noise, the X4S steel pins are the better bet.
Locking Positions and Bed Access
Both the X4S and X2 lock at intervals as you roll the cover open, allowing partial bed access without fully retracting the slats. The X4S offers one additional locking position compared to the X2, which can be useful if you frequently haul items that need exactly three-quarters of the bed length exposed while keeping the front quarter covered.
In practice, most users rely on just two positions: fully closed or fully open. The extra stop on the X4S becomes relevant mainly for irregular loads that don’t fit standard bed lengths. Both models use the same rotary latch system at the tailgate, so security and ease of opening are identical once you’re standing at the rear of the truck.
Weather Sealing and Seasonal Performance
Neither the X4S nor the X2 is marketed as waterproof — both are water-resistant retractable covers that shed most rain but allow some moisture in during heavy downpours or when snow melts and pools along the slat seams. The X4S’s deeper slat overlap reduces the amount of water that can wick through the hinge gaps, though it doesn’t eliminate it entirely.
If you’re storing tools or cargo that can’t tolerate any dampness, plan to use a secondary tarp or sealed case inside the bed regardless of which model you choose. In winter, ice buildup along the canister face can lock both covers in place — the X4S’s heavier slats require more force to break free, while the X2’s lighter assembly sometimes flexes enough to crack surface ice without manual intervention. The BAKFlip MX4 bulkhead seal also fits the Revolver canister mounting area and can reduce air and dust intrusion year-round.
Choosing the Right Retractable for Your Needs
The X4S makes sense if you value long-term hinge durability, need the extra load support from thicker slats, or want the quietest highway performance in high-wind conditions. The X2 fits better when weight, ease of operation, and a lower canister profile matter more — especially if your truck already has limited vertical clearance near the cab.
Both covers deliver the core benefits of a retractable tonneau: quick full-bed access, multiple locking positions, and the clean aluminum slat look that complements modern truck styling. The choice comes down to whether the X4S’s construction upgrades justify the price difference for your specific hauling habits and climate. Measure your bed clearances, consider how often you’ll cycle the cover open and closed, and pick the model that matches those real-world priorities rather than chasing features you won’t use.
Common Questions When Choosing Between the X4S and X2
Both the X4S and X2 install with clamp-on rails that require no drilling into the truck bed. Most owners complete the installation in under an hour using basic hand tools — a socket set and an adjustable wrench cover the hardware.
The X4S weighs more, so having a second person to lift the canister assembly onto the bed rails makes alignment easier. The X2 is light enough that a single installer can usually manage it alone.
The X4S spring mechanism is calibrated for the heavier slat stack, so the effort required to roll it open feels roughly the same as the X2 despite the weight difference. Over time, if the spring loses tension, the X4S will feel slightly stiffer — but that typically doesn’t show up until several years of regular use.
Both models operate smoothly when new, and neither requires two hands to pull open under normal conditions.
The X4S’s heavier slats and steel hinge pins resist flutter at highway speeds better than the X2’s lighter assembly. If you regularly drive at 70+ mph or operate in open prairie or desert where crosswinds are constant, the X4S stays quieter and shows less panel movement.
The X2 is still secure at highway speeds — it won’t come loose or lift off the rails — but you may notice a low hum or vibration from the slats when wind hits the cover at certain angles.
The rail clamp hardware is the same for both covers, but the canister mounting brackets differ slightly due to the height and weight difference. If you’re swapping from an X2 to an X4S on the same truck, you’ll need to remove the old canister bracket and install the new one that comes with the X4S.
The side rails themselves can remain in place if they’re in good condition, though BAKFlip recommends replacing the rubber seals when switching models to ensure a fresh weather seal.
The X4S typically holds a slightly higher resale price on the used market, largely because buyers perceive the heavier gauge slats and steel hinges as premium features. That said, both models depreciate at similar rates — a well-maintained X2 in clean condition will sell for nearly the same percentage of its original price as an equivalent X4S.
If resale is a priority, keep the original packaging and hardware, and document any maintenance or seal replacements you’ve performed.
Yes — both the X4S and X2 leave the factory bed tie-down anchors fully accessible when the cover is rolled open. When the cover is closed, the slats sit low enough that most anchor points remain reachable if you’re using shallow D-ring or cleats, though deeper recessed anchors may be blocked depending on your truck model.
Neither cover interferes with stake pocket use along the bed rails, so auxiliary tie-downs and bed dividers install normally.