Low Profile Heavy Duty RHS Crossbars (RHS)
Please note the rail sides and rear wing are sold separately.
Designed with strength, versatility, and modularity in mind, Tier One Crossbars give you complete freedom to configure your setup.
Our Low Profile Heavy Duty (RHS) Crossbars are manufactured from premium 304 stainless steel and finished in the same satin black powder coat as our roof rack rails, these crossbars offer a premium, long-lasting solution while maintaining the clean, low-profile Tier One look you know and trust.
Each bar is fully adjustable, completely interchangeable, and can be mounted in any position along the rails, allowing you to tailor your roof rack for touring, trade use, or everyday driving.
Our original proven design combines heavy-duty strength with a slim, low-profile design, delivering a clean look without sacrificing durability. The ideal choice for those wanting maximum strength while keeping their setup as low as possible.
Recommended Setups
- Wagon: 6 bars
- Ute: 3 bars
- Rooftop Tent: 6 bars recommended
Specifications
- Weight: 3.6 kg per bar
- Material: 304 stainless steel
- Finish: Powder coated satin black
- Width: 50 mm
- Height: 25mm
- Roof clearance: ≈ 8-10mm (At closest point)
- Material Thickness: 3mm
Variant Sizes
GU-GQ-76-78
· 1120mm internal / 1220mm External (end tab to end tab)
79 Series:
· 1180mm internal / 1280mm External (end tab to end tab)
Prado:
With the Prado rails running out from front to rear we utilise two different lengths.
- Rear: 1045 mm internal / 1145 mm external
- Front: 1075 mm internal / 1175 mm external
What’s Included
- 6 bars: 1045 × 4, 1075 × 2
- 5 bars: 1045 × 4, 1075 × 1
- 4 bars: 1045 × 3, 1075 × 1
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3 bars: 1045 × 2, 1075 × 1
- 2 bars: 1045 × 1, 1075 × 1
100/105 Series and 200 Series roof profiles increasing significantly from front to rear, we manufacture three different bar lengths to ensure a precise fit.
100/105 Series Variants
- Rear: 1015 mm internal / 1115 mm external
- Middle: 1045 mm internal / 1145 mm external
- Front: 1075 mm internal / 1175 mm external
What’s Included
- 6 bars: 1015 × 2, 1045 × 2, 1075 × 2
- 5 bars: 1015 × 2, 1045 × 2, 1075 × 1
- 4 bars: 1015 × 1, 1045 × 2, 1075 × 1
- 3 bars: 1015 × 1, 1045 × 1, 1075 × 1
- 2 bars: 1015 × 1, 1075 × 1
200 Series Variants
- Rear: 955 mm internal / 1055 mm external
- Middle: 985 mm internal / 1085 mm external
- Front: 1015 mm internal / 1115 mm external
What’s Included
- 6 bars: 955 × 2, 985 × 2, 1015 × 2
- 5 bars: 955 × 2, 985 × 2, 1015 × 1
- 4 bars: 955 × 1, 985 × 2, 1015 × 1
- 3 bars: 955 × 1, 985 × 1, 1015 × 1
- 2 bars: 955 × 1, 1015 × 1
Need a custom combination?
Leave a note at checkout or contact us before ordering — we’re happy to help.
Important Notes
- All cross-bar sets include one rear-tab bar, unless ordering a ute setup
- If you do not plan to run a rear wing, please specify this in your order notes
- Otherwise, a tabbed bar will be included to suit the wing (excluding alloy extrusion setups)
- If the gap on your GQ is very minimal it is likely your roof skin has separated internally from the support beams, if this is so we recommend removing the roof lining and re sticking the roof skin to the support beams.
If you may add a rear wing in the future, we recommend keeping the tabbed bar and mounting it with the tabs facing inward for now.
Why Choose Tier One Cross Bars
- Australian-made and engineered in-house for real-world conditions
- Modular and interchangeable — add, remove, or reposition bars at any time
- Lightweight yet durable, proven under demanding loads
- Accessory-ready, with a growing range of modular bolt-on add-ons in development
Whether you’re mounting a rooftop tent, loading up for work, or heading off-road, Tier One Metalworks Cross Bars deliver a slim, strong, and practical solution for any setup.
