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A lighter, slimmer way to run a backbone roof setup - exclusive to BGT4X4.

Our slimline aluminium cross bars for backbone systems were developed to give you an alternative to the weight and bulk of a traditional full roof platform. We were the first to offer this style of setup, and it remains exclusive to BGT4X4.

This complete set includes 4 × 1120mm cross bars, made from heavy-duty 4mm aluminium and weighing just 1.2kg each. Pair all four with our aluminium backbone and your complete roof setup weighs only 8.9kg, leaving more of your available roof load for the gear you actually want to carry.

The slimline design keeps your setup low, clean and lightweight, while three accessory slots per side give you plenty of mounting options for compatible rooftop tents, awnings, recovery boards and touring gear.

The bars can also be mounted above or below the backbone brackets, giving you flexibility depending on the clearance and overall height you want.

For those who don't need the size and weight of a full platform, it's a clean, versatile way to get the carrying capability you need without unnecessary weight on the roof.

Exclusive to BGT4X4 • 4mm aluminium • Set of 4 • Only 8.9kg with backbone • Slimline design

Shipping & Delivery Plus

In-stock products shipping from our Brisbane warehouse are generally dispatched within 1-3 business days. This timeframe excludes orders containing pre-order products, which will generally ship once all items are available.

To offer an even greater range of tried and trusted products, we also partner with selected brands that ship directly to you. These products are marked “Dispatches from supplier” on the product page and may arrive separately from other items in your order.

View our Shipping Policy

Pre-orders & mixed orders Plus

Products marked Pre-Order are not currently in stock. Ordering reserves your item from an incoming shipment.

Any estimated arrival date is a guide and may change due to manufacturing, freight, customs clearance, weather or other circumstances outside our control. We’ll keep you informed if there are any significant changes.

If your order contains both in-stock and pre-order products, your order will generally ship together once everything is available. If you would prefer the available items sooner, please contact us to arrange split shipping. An additional shipping charge will apply.

Learn more about Pre-Orders

Returns & exchanges Plus

Change-of-mind returns may be requested within 30 days, provided the product is unused, uninstalled and returned in its original packaging with all inclusions.

You can choose:

  • Full store credit
  • Refund to your original payment method: A 15% restocking fee applies

Return shipping is the customer’s responsibility, and original shipping charges are non-refundable.

*Supplier-direct and special-order products may still attract a restocking fee imposed by the supplier.

If your product arrives incorrect, damaged or faulty, please contact us as soon as possible with your order number and photos so we can help.

View our full Returns & Refunds Policy

  • 5 stars: 2 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
J
Jared (Queensland, Australia)
Just did an overnight camping trip with the new

Just did an overnight camping trip with the new backbone and cross bars. Really great product and easily had the rtt and awning hanging on them. Couldn't recommend them highly enough.

Hey Jared! Love the setup it looks great mate! Thanks for the review, appreciate it.

L
Liam (New South Wales, Australia)
Another good product from BGT4x4

Shipping was super quick, came packaged well and quality feels really good. Mounted a kings grand tourer lite rooftop tent to the crossbars which was extremely easy. Always rate any products from BGT4X4 very highly.

Hi Liam, thank you for your fantastic review! We're glad you're satisfied with the cross bars and that the installation was smooth. We appreciate your support for BGT4X4!

E
Edward

Hi what’s the dimensions of the bar LxWxH if mounted on top what is the clearance at it’s lowest point from the middle of the roof to underside of the bar thanks

BGT4X4

1200x40x20. Mounted at bottom is 10mm from roof. On top of backbone has a 34mm gap. RTT setups need to go on top, bottom is more for people running awnings or anything under 60kg on top.

What do you drive?

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