BAKFlip MX4 TS Truck Bed Cover
The BAKFlip MX4 TS delivers the proven performance of our MX4 tonneau cover with integrated TrackRack compatibility built right in. We engineered this folding cover with heavy-duty aluminum panels that protect your truck bed from weather and theft while maintaining full bed access. The TS designation stands for TrackRack System — a factory-integrated T-slot channel that lets you mount our modular rack accessories without drilling or compromising the cover’s seal.
Every panel features our FRP (Fiber Reinforced Polymer) coating for scratch and UV resistance, and the cover supports up to 400 pounds of evenly distributed weight when closed. Whether you’re securing tools during the week or loading gear for the weekend, the MX4 TS adapts to how you use your truck.
- Heavy-duty aluminum panels with FRP coating resist scratches and UV damage
- Integrated TrackRack T-slot channels accept modular rack accessories
- Supports 400 lbs evenly distributed on closed panels
- Folds completely open for full bed access in seconds
- Automatic latching secures cover at every fold position
Aluminum Construction & Durability
We build the BAKFlip MX4 TS with extruded aluminum panels engineered to withstand years of daily use. Each panel receives our proprietary FRP coating that bonds directly to the aluminum surface, creating a finish that resists scratches from cargo, UV degradation, and road chemicals. The coating won’t peel or flake like paint, and it maintains its matte black appearance through all weather conditions.
The four-panel design uses heavy-duty aluminum hinges with stainless steel pivot pins that won’t bind or corrode. We reinforced every hinge point to handle the stress of thousands of open-close cycles while maintaining the cover’s structural integrity. When closed and latched, the panels form a rigid surface that supports up to 400 pounds — enough to stand on for loading roof racks or securing oversized cargo.
TrackRack System Integration
The TS model includes our TrackRack mounting channels machined directly into the cover’s side rails. These T-slot channels run the full length of the cover and accept our complete line of TrackRack accessories — from bike mounts and cargo baskets to kayak carriers and ladder racks. You can add or remove accessories in minutes without tools, and the system doesn’t require drilling holes in your truck bed or compromising the tonneau cover’s weather seals.
When you’re not using TrackRack accessories, the mounting channels remain flush with the cover rails and don’t affect aerodynamics or appearance. The modular design lets you configure your truck bed for different jobs throughout the week, switching from enclosed storage to open hauling as your needs change.
Installation & Fit
We designed the bakflip mx4 ts for clamp-on installation that takes about 30 minutes with basic hand tools. The cover ships with vehicle-specific clamps and detailed instructions for your exact truck make, model, and bed length. Our clamp system attaches to your bed rails without drilling, and the clamping force distributes evenly to prevent rail damage or finish scratching.
The cover sits flush with your bed rails when closed, maintaining a low profile that doesn’t interfere with your sight lines or add wind noise. We precision-cut each panel to match your truck’s bed dimensions, ensuring proper panel alignment and consistent gaps between sections. The automatic latching system engages as you lower each panel, and you can secure the cover at any fold position for partial bed access.
More BAKFlip Folding Tonneau Covers
What people are saying
Common Questions About the MX4 TS
No drilling is required. The MX4 TS uses our clamp-on installation system that secures to your truck’s bed rails with specialized clamps. Installation typically takes 30-45 minutes with basic hand tools, and the clamps won’t damage your bed rail finish. The cover can be removed completely if needed without leaving permanent modifications.
The integrated T-slot channels accept our complete TrackRack accessory line, including bike mounts, kayak carriers, cargo baskets, lumber racks, and ladder racks. All TrackRack accessories mount and remove without tools using our sliding clamp system. You can mix and match accessories or run the cover without any racks installed.
Yes, the automatic latching system secures the cover at any fold position. You can fold back one, two, or three panels and drive safely with the remaining panels latched closed. We recommend keeping your speed reasonable with panels folded back, and always ensure all latches are fully engaged before driving.
The MX4 TS supports up to 400 pounds of evenly distributed weight when all panels are closed and latched. This capacity allows you to stand on the cover for loading roof racks or securing tall cargo. Avoid concentrated point loads and ensure weight distributes across multiple panels for maximum safety.
The cover is compatible with most spray-in bed liners and drop-in liners that don’t have raised stake pocket covers. We manufacture the clamping system to accommodate the added thickness of spray-in liners. Drop-in liners with caps over the bed rails may require cap removal or modification for proper cover fit.
The FRP coating requires minimal maintenance. Wash the cover with automotive soap and water using a soft cloth or sponge — avoid abrasive cleaners or brushes. The coating resists most chemicals and won’t fade from UV exposure. For stubborn dirt or tree sap, use a mild degreaser and rinse thoroughly. No waxing or special treatments are needed.
Yes, you can fold panels back with the tailgate closed for access from the sides of your truck bed. The panels fold independently, so you can open just the sections you need while keeping the rest of your cargo covered. For full rear access, lower the tailgate and fold all four panels against the cab.