BAKFlip G2 vs MX4: Which Hard Folding Cover? (November 2026)

On this page (12 sections)

1. The quick verdict on BAKFlip G2 vs MX4
2. BAKFlip G2 vs MX4 side by side
3. Strength and materials: how much does the MX4 gain?
4. Sealing and water protection
5. Security and latching
6. Bed access and daily use
7. Warranty and long-term value
8. Which truck bed does each cover fit?
9. Who should buy the MX4?
10. Who should buy the G2?
11. Alternative covers worth a look
12. Final verdict: BAKFlip G2 vs MX4

The BAKFlip MX4 wins the G2 vs MX4 comparison for most buyers. It uses heavier aluminum construction, a newer auto-latch system, revised seals and a 5-year warranty, while the G2 carries the original design and a 3-year warranty.

Both are hard folding tonneau covers from RealTruck, and both fit the same trucks. The choice comes down to how much you value the newer locking and sealing hardware over the lower price tier of the original.

The quick verdict on BAKFlip G2 vs MX4

Pick the MX4 if your budget allows it. The bakflip g2 vs mx4 decision is straightforward once you weigh the newer cover's upgrades, because the price gap buys real hardware differences.

The MX4 is RealTruck's best-selling cover, now in its third generation. BAK says the Gen 3 design delivers a 22 percent increase in strength over the previous generation thanks to aluminum side rails and top panels reinforced with polymer cores.

The G2 keeps the older layout that made BAKFlip a known name. Its 300 lb evenly distributed weight rating and automatic latching still cover the basics of a hard folding cover.

Where the two split is durability and locking. The MX4's auto-latch secures the cover when it closes, and BAK says the lock parts resist tampering better than before.

The G2 also latches automatically and opens from either side of the bed using quick-release cables under the panels. For many drivers that is enough security over a vinyl cover.

If you just want a hard cover that folds and locks, the G2 does the job. If you want the best version BAK sells, spend the extra on the MX4.

BAKFlip G2 vs MX4 side by side

The table below lines up the specs that matter. Both covers share a material and lock type, so the differences sit in warranty, weight rating and the newer design work on the MX4.

The shared lock type matters: both covers secure through the tailgate, so locking the truck locks the cover. Neither uses a separate keyed handle on the rail.

The MX4's flush-mount design and textured matte black finish make it sit closer to the bed rails. The G2 has a machined finish and a no-profile look that also lays flush.

Both fit the MultiPro or Flex tailgate trucks, and both refuse the Carbon Pro bed. That shared fitment means you cross-shop on features, not on whether the cover will bolt up.

Our BAKFlip MX4 vs Rough Country comparison covers how the MX4 stacks up against a budget rival if the G2 still feels expensive.

Strength and materials: how much does the MX4 gain?

The MX4 is the sturdier cover of the two. BAK calls it alloy-based construction with heavy-duty aluminum side rails and top panels, plus high-density polymer cores inside the panels.

That core reinforcement is the big difference. It adds stiffness without turning the cover into a heavy steel lid, and BAK credits it for the 22 percent strength gain over the previous MX4.

The G2 relies on aluminum panels alone. It still holds up to 300 lb of evenly distributed weight, which is a real number you can plan around for light cargo resting on the closed cover.

Be careful with that rating on the MX4. BAK doesn't publish a matching evenly-distributed figure for the third-generation cover, so don't stack loads on it based on the G2's number.

For daily use, both panels handle weather and road spray. The polymer cores inside the MX4 panels are the reason its stiffness feels different from the older cover.

If you regularly carry a ladder or plank on top of a closed cover, the G2's published rating gives you a number. If you want the strongest panels BAK makes in this price range, the MX4 is the pick.

Sealing and water protection

The MX4 wins on weather sealing. BAK redesigned the perimeter seals and clamps for the Gen 3 cover to keep water out along the bed rails.

The MX4 uses revised EPDM perimeter seals and tight-fit clamps. A longer dual-action tailgate seal runs the full width of the gate while letting it open whether the cover is shut or open.

The G2 has full-perimeter seals too, and BAK includes dual drain tubes to route water away from the bed. A dual-action tailgate seal lets the gate close without lifting the cover.

So both covers keep rain out reasonably well. The gap is in the details: the MX4's newer seal geometry and clamp design target the rail corners where water usually sneaks in.

If your truck sits outside in heavy rain, the MX4's tighter seals and clamps are worth the money. If your truck lives in a garage or you park under cover most days, the G2's sealing is fine.

For snow and sun exposure, BAK tested the MX4 from -40 to 180 degrees Fahrenheit at zero to 95 percent humidity. That is a claim about the design, not a promise about your specific climate.

Security and latching

The MX4 has the more advanced locking system. Its patented auto-latch secures the cover automatically when you close it, and BAK says the lock components now resist tampering and forced entry better than earlier designs.

The G2 uses a patented automatic latching panel system too. Close the panels, lock the tailgate, and the cover is protected.

Quick-release cables under the panels let you open it from either side.

The practical difference is the generation of the hardware. The MX4's latch parts are newer and were engineered specifically around the Gen 3 panel design.

Both covers rely on the tailgate as the primary lock. That means a locked truck bed and a locked cover go together, and neither one offers a separate keyed latch at the cab end.

If theft is a real concern where you park, the MX4's updated lock hardware is the safer bet. If the truck mostly sits in a driveway behind a house, the G2's automatic latching covers the basics.

Bed access and daily use

Both covers give you the whole bed when you need it. Fold the panels up to the cab and you have 100 percent bed access on the MX4; the G2 offers the same open, folded or flipped options.

Driving open is the feature that sets hard folding covers apart. The MX4 folds to the cab, secures, and lets you drive with the cover fully open.

The G2 lets you drive closed, folded or flipped up without hiding the third brake light.

The G2 adds prop rods that hold the cover upright while it is open. They stow away when you close the cover partially or fully.

On the MX4, the older prop-rod approach gives way to a simpler fold-and-secure routine, and BAK says the new click-in rail system cuts install time by up to 12 percent.

For hauling tall items like furniture or a fridge, both covers free the bed in seconds. The G2's prop rods make propping it open easier during loading, while the MX4's newer rails make the initial install quicker.

If you load the bed every weekend, you will use this feature constantly, and either cover handles it. The MX4 just gets you there with fewer steps.

Warranty and long-term value

The MX4 carries the longer warranty. BAK backs it with a 5-year extended warranty, compared with the G2's shorter coverage.

The G2's packaging lists a 3-year warranty in some places and a 2-year warranty in others. That is a conflict in the product data, so plan for the shorter figure when you weigh the two covers.

For a cover that lives outside in sun, rain and road salt, warranty length is a real value signal. Five years covers more of the panel, seal and latch life than two or three.

The MX4 also inherits the newer rail and seal design, which is the stuff that tends to wear first. Its 5-year coverage lines up with that hardware.

The G2 remains the lower-cost entry into the BAKFlip line. If budget is tight and you plan to keep the truck a few more years, its coverage is still reasonable for the price tier.

If you keep trucks for a decade, the MX4's warranty and updated hardware make it the better long-term buy.

Which truck bed does each cover fit?

Both covers fit the same short-bed 1500 trucks. The MX4 and the G2 both fit 2019 to 2026 Chevy and GMC Silverado and Sierra 1500 trucks with the MultiPro or Flex tailgate and a 5 ft 10 in bed (69.9 in).

Neither cover fits the Carbon Pro bed. That is a hard stop, and it applies to both, so check your bed material before you order either one.

Fitment here is vehicle-specific. Both covers are built for the MultiPro and Flex tailgate trucks, which means the tailgate seal and mounting points are designed around that gate.

If you have a different bed length, neither of these part numbers is right for you. Look for the matching bed length in the same BAKFlip line rather than forcing one of these to fit.

The shared fitment makes the decision easier: if your truck is not on the list, stop here and shop a cover built for your bed. If it is, move on to the feature comparison above.

Who should buy the MX4?

Most truck owners should buy the MX4. It is the newer, stronger, better-sealed cover of the pair, and the 5-year warranty adds years of coverage over the G2.

Buy the MX4 if you park outside, carry valuable tools or gear, and want the upgraded auto-latch hardware resisting forced entry. The polymer-core panels and tighter clamps pay off in wet climates.

It also suits anyone who keeps a truck for a long time. The warranty and the newer seals mean fewer replacement parts down the road.

The one reason to skip it is price. If the MX4 stretches your budget and you mostly want a hard folding cover that locks, the G2 is the sensible fallback.

For a broader look at cover styles before you commit, our tonneau cover vs topper guide explains when a cap suits a truck better than a folding lid.

Who should buy the G2?

Buy the G2 if you want a hard folding cover at a lower price tier and don't need the newest hardware. It still gives full bed access, automatic latching and a 300 lb weight rating.

The G2 suits work trucks that spend most days hauling and only lock up occasionally. Fold it open, load, prop it with the rods, and close it when you are done.

It also fits buyers who like the original BAKFlip look. The machined finish and no-profile flush fit look clean on a Silverado or Sierra.

Skip it if you park in a high-theft area or want the longest warranty. The MX4's newer latch parts and 5-year coverage are worth the step up in those cases.

Our guide to choosing a tonneau cover helps if you are still deciding between folding, roll-up and retractable styles.

Alternative covers worth a look

Neither BAKFlip is the only hard folding option. If you want to compare against another premium cover, the UnderCover Ultra Flex is the closest rival to the MX4.

Our UnderCover Ultra Flex vs BAKFlip MX4 comparison breaks down how the two premium hard folding covers differ on panels, finish and price tier.

That comparison is worth reading if the MX4's textured matte finish is not your style. Different covers suit different trucks.

Final verdict: BAKFlip G2 vs MX4

Pick the BAKFlip MX4. In this bakflip g2 vs mx4 head-to-head, the MX4 scores higher on strength, sealing, latching and warranty, and it fits the same trucks as the G2.

Choose the MX4 if you park outside, carry gear worth locking up, or plan to keep the truck for years. The polymer-core panels, upgraded auto-latch and 5-year coverage make it the better cover overall.

Choose the G2 if the MX4 is out of reach and you mainly want a hard folding cover that locks and gives full bed access. Its 300 lb rating and automatic latching still cover the core job.

Either way, confirm your bed first: both covers fit the 5 ft 10 in Silverado and Sierra 1500 with the MultiPro or Flex tailgate and neither fits the Carbon Pro bed. Once that checks out, the MX4 is the one to order for most readers.

Frequently asked questions

Does the BAKFlip MX4 fit the same trucks as the G2?

Both covers fit 2019 to 2026 Chevy and GMC Silverado and Sierra 1500 trucks with the MultiPro or Flex tailgate and a 5 ft 10 in bed. Neither fits the Carbon Pro bed, so check your bed before ordering.

Can you drive with either cover fully open?

Yes. The G2 allows driving with the cover closed, folded or flipped up without covering the third brake light.

The MX4 folds to the cab and can be driven fully open after you secure it.

Which cover holds more weight, the G2 or the MX4?

BAK rates the G2 at up to 300 lb of evenly distributed weight. The MX4 is the stronger design overall, with heavier duty aluminum side rails and top panels plus polymer cores, but BAK does not publish a matching weight figure for it.

Is the MX4 harder to install than the G2?

The MX4 comes with a click-in rail system that BAK says cuts install time by up to 12 percent. Both covers ship with rails, hardware and an installation guide, so either is a bolt-on job for a patient DIYer.