Seah Hardware Universal Roof Rack Cross Bars 2‑pc — 120 cm Tubes, 170 lb Load Limit

Seah Hardware Universal Roof Rack Cross-Bars (2-piece) are adjustable, strap-on crossbars that convert four-door cars without side rails into secure rooftop cargo carriers with a 170-pound load limit.

These two universal crossbars from Seah Hardware are built from heavy-duty steel tubing and designed to fit most four-door cars without factory rails. Each tube measures 120 cm long and secures to the vehicle using ratchet straps routed through the door frames. The system includes mounting hardware and lock nuts; it’s intended for temporary cargo transport and requires careful installation — do not overtighten the ratchet straps or attempt to mount additional roof racks on top.

How do these cross-bars attach to my vehicle?

The bars use high-strength straps that run through the car’s door frames and tension with ratchet buckles to hold the bars in place on the roof. Installation is tool-light but requires attention to strap routing and tensioning.

• Straps thread through each door frame and connect under the bar for secure anchoring.
• Included ratchet tie-downs let you tension the straps; avoid over-tightening.
• Mounting hardware includes four 1/4" x 2" screws and four 1/4" lock nuts for added stability.
• Designed for temporary install; remove when not in use to protect vehicle finish.

What size and load can I carry on these cross-bars?

Each tube is 120 cm (approx. 47 inches) long and the system is rated to carry up to 170 pounds (about 77 kilograms) when installed correctly. This capacity suits typical luggage, roof boxes, bikes, and other cargo within that weight limit.

• Tube length: 120 cm per bar for a broad range of vehicle widths.
• Maximum recommended load: 170 pounds total across both bars.
• Evenly distribute cargo and double-check strap tension before driving.
• Not engineered for permanent heavy-duty rooftop racks or mounts.

Which cars are compatible and what should I avoid?

These cross-bars are made specifically for four-door cars without side rails and will not fit two-door vehicles or MPVs. Confirm fit by measuring door-frame clearance and roof width; improper fit risks damage to both your car and the rack.

• Best for four-door sedans, hatchbacks, and compact cars without factory rails.
• Not suitable for two-door cars or MPVs—do not purchase if your vehicle is one of these types.
• Do not stack or install an additional rack on top of these cross-bars.
• Measure before ordering to ensure the 120 cm tube length and strap routing work with your doors.

How do I maintain and use the Seah cross-bars safely?

Correct installation and routine checks are essential to safe use. Follow the included instructions for strap routing and ratchet tension; inspect straps, screws, and locks before each trip and remove the bars when not needed to minimize wear and avoid stress on the vehicle.

• Do not over-tighten the ratchet—overtension can warp the rack or damage door seals.
• Regularly inspect straps, hardware, and the steel tube for wear or corrosion.
• Secure loads with additional tie-downs and confirm even weight distribution.
• Store bars indoors when not in use to prolong finish and hardware life.

Who is this for? The Seah Hardware Universal Roof Rack Cross-Bars suit drivers who need an economical, temporary way to carry extra cargo on four-door cars without factory rails. They’re ideal for weekend trips, moving light gear, transporting sports equipment or luggage, and for anyone who wants a removable, strong crossbar solution rather than a permanent roof-rack installation. Before buying, ensure your vehicle fits the strap-through-door design and that you follow safe-loading and tensioning practices to protect both the rack and your car.