INEOS Grenadier Rooftop Tent Setup: Crossbars, Weight Limits & Install Guide
INEOS Grenadier Rooftop Tent Setup: Crossbars, Weight Limits & Install Guide
Quick Answer
Setting up a rooftop tent on an INEOS Grenadier means mounting crossbars to the factory roof rails, choosing a tent rated for a 2-inch crossbar profile, and staying under the 150 kg (330 lb) dynamic roof load limit. DVA DualTrack™ crossbars bolt directly to the Grenadier's integrated rail system with M8 hardware — no drilling, no rack frame required. Use a 4-bar configuration for rooftop tents to spread load evenly. Most installs take 60–90 minutes with two people. Torque crossbar bolts to 25 Nm; re-check after the first 80 km.
What You'll Need
- DVA DualTrack™ Crossbar System for INEOS Grenadier — 4-bar configuration recommended for rooftop tents ($549)
- DVA Versatile Mounting Clamps — 2-Pack — 2″ profile fits most RTT mounting brackets ($59)
- Rooftop Tent (user's own, compatible with crossbar mounting)
- Torque wrench (range: 0-50 Nm)
- Socket set (typically 13mm, 17mm, or sizes specific to RTT hardware)
- Measuring tape (metric and imperial)
- Marker or grease pencil
- Step ladder or platform (for safe roof access)
- Safety glasses
- Nitrile gloves
- Second person (highly recommended for RTT lifting and positioning)
Technical Specifications & Compatibility
The INEOS Grenadier's roof structure is engineered with integrated mounting rails designed to support significant loads. The vehicle's dynamic roof load capacity is 150 kg (330 lb), with a static load capacity of 300 kg (660 lb) when parked. It is imperative that the combined weight of the rooftop tent and any additional gear or occupants within the tent does not exceed these limits.
DVA DualTrack Crossbars are constructed from high-strength 6063-T5 extruded aluminum, finished with a durable black anodization. Each DVA DualTrack crossbar is rated for a distributed load of 75 kg (165 lb). For rooftop tent applications, a minimum of two crossbars is required, but a 4-rail DVA DualTrack system is strongly recommended to optimize load distribution and provide a more stable platform, ensuring the Grenadier's dynamic and static load limits are respected.
The DVA DualTrack crossbars integrate with the Grenadier's factory roof mounting rails via M8 stainless steel hardware. The crossbar profile features an upper T-slot channel, accommodating a wide range of RTT mounting systems, including DVA's 2-inch width mounting clamps or proprietary RTT hardware. The crossbar dimensions are 140 cm (55 inches) in width and 5 cm (2 inches) in height, providing ample clearance and mounting versatility.
Key Torque Specifications:
- DVA DualTrack crossbar mounting bolts (M8): 25 Nm (18.4 ft-lb)
- Rooftop Tent mounting hardware (M6/M8): 15-20 Nm (11-14.7 ft-lb), or as specified by the RTT manufacturer. Always defer to the RTT manufacturer's recommendations if higher.
Weight Considerations:
- Typical 2-person RTTs: 50-75 kg (110-165 lb)
- Typical 3-4 person RTTs: 68-100 kg (150-220 lb)
- Ensure the RTT's dry weight, plus any internal gear, remains within the Grenadier's 150 kg dynamic load limit. When deployed and occupied, the total static load must not exceed 300 kg.
Step-by-Step Installation Guide
1. Pre-Installation Preparation
- Tools Required: Measuring tape, marker, safety glasses, nitrile gloves.
- Position the INEOS Grenadier on level ground. Engage the parking brake.
- Clean the Grenadier's factory roof mounting rails to remove any dirt or debris that could interfere with secure crossbar attachment.
- Unpack all DVA DualTrack components and verify all hardware is present.
- Don safety glasses and gloves.
2. DVA DualTrack Crossbar Installation
- Tools Required: Torque wrench, socket set (typically 13mm), step ladder.
- Determine the optimal spacing for the crossbars based on your RTT's mounting rails or internal frame. For most RTTs, two crossbars positioned near the ends of the RTT base, and two evenly spaced in between, provide the best support. Mark these positions on the Grenadier's factory mounting rails using a marker or grease pencil.
- Attach the DVA DualTrack crossbar mounting feet to the Grenadier's factory roof rails at the marked locations. Ensure the crossbar T-slot profile will face upwards once installed.
- Insert the extruded aluminum DVA DualTrack crossbars into the mounting feet. Slide them into their final positions.
- Hand-tighten all M8 mounting bolts that secure the crossbars to the Grenadier's rails.
- Using a torque wrench, tighten the M8 mounting bolts to 25 Nm (18.4 ft-lb). Work systematically from one side of the vehicle to the other, ensuring even tension.
- Safety Precaution: Verify all bolts are securely engaged with the Grenadier's rails. Do not over-torque, as this can damage the mounting hardware or the vehicle's rails.
- Common Mistake: Uneven crossbar spacing or loose mounting bolts can lead to concentrated load points or crossbar shift. Ensure consistent spacing and verify torque values.
3. Rooftop Tent Positioning
- Tools Required: Second person (mandatory for RTTs over 30 kg), step ladder.
- With the assistance of a second person, carefully lift the rooftop tent onto the installed DVA DualTrack crossbars. Avoid dragging the RTT across the vehicle's paintwork or crossbars.
- Center the RTT laterally on the crossbars. Adjust its longitudinal position to ensure even overhang front and rear, which contributes to aerodynamic stability and balanced aesthetics.
- Safety Precaution: Maintain a firm grip on the RTT at all times. Communicate clearly with your assistant during the lift and positioning phases.
- Common Mistake: Attempting to lift and position a rooftop tent solo. This significantly increases the risk of injury to personnel and damage to the RTT or vehicle.
4. Rooftop Tent Mounting
- Tools Required: Torque wrench, socket set (specific to RTT hardware), DVA Mounting Clamps (if used).
- Align the RTT's internal mounting channels or rails with the DVA DualTrack crossbars.
- Insert the RTT's mounting hardware (bolts, plates, or DVA Mounting Clamps) into the T-slots of the DVA DualTrack crossbars.
- Ensure all mounting points are engaged. For optimal security, use all available mounting points provided by the RTT manufacturer.
- Hand-tighten all RTT mounting bolts evenly across all attachment points.
- Using a torque wrench, tighten the RTT mounting hardware to 15-20 Nm (11-14.7 ft-lb), or the specific torque value recommended by your RTT manufacturer if different.
- Safety Precaution: Tighten incrementally and evenly across all fasteners to prevent warping the RTT base. Ensure threads are fully engaged.
- Common Mistake: Forgetting to re-check bolt torque after an initial drive. Fasteners can settle and loosen. Re-check all RTT mounting hardware after the first 80 km (50 miles) of driving and periodically thereafter.
5. Final Inspection
- Visually inspect all DVA DualTrack crossbar mounting points and RTT attachment points for secure engagement and proper torque.
- Gently push and pull on the RTT to confirm there is no movement or play.
- Verify that the RTT and crossbars do not obstruct door openings, the rear hatch, or any other critical vehicle functions.
What Grenadier Owners Say
"5 minutes with a hardshell. Quite a bit longer with a softshell — cut the 5 minutes in half with two people." — Forum source
"I rocked the car side to side with my whole weight whilst there was 150 kg on the roof. I couldn't get them to flex at all." — Forum source
"Have asked DVA and they said static weight (including my wife and myself) is close to limit for the rails — but should be okay — and dynamic weight is fine." — Forum source
Troubleshooting
Pro Tips from the Field
- Optimize Crossbar Count: For larger or heavier RTTs, consider using a 4-rail DVA DualTrack system over a 2-rail setup. This significantly improves load distribution across the RTT's base, reducing stress on the RTT's internal frame and enhancing overall stability.
- Pre-Trip Inspection: Before embarking on any journey, especially off-road, perform a rapid visual and tactile inspection of all RTT and crossbar mounting hardware. Vibration and dynamic forces can gradually loosen fasteners.
- RTT Cover Security: Ensure your rooftop tent's travel cover is always securely fastened and free of tears. A loose or damaged cover can create significant wind noise at highway speeds and accelerate wear on the tent fabric.
- Weight Management Awareness: Beyond the RTT's dry weight, account for the weight of bedding, ladders, and any other gear stored within or on the RTT. This combined weight contributes to the Grenadier's overall roof load.
- Seasonal Removal for Efficiency: If your RTT is not in use for extended periods, consider removing it. This reduces aerodynamic drag, potentially improving fuel efficiency, and minimizes exposure of the RTT to environmental elements. Garage hoist systems can facilitate single-person removal and installation.
DVA Roof Products for This Install
DualTrack™ Low-Profile Roof Crossbar System
400 lb static / 200 lb dynamic. L-Track + T-slot channels. ~1" profile keeps garage clearance. Bolt-on to Grenadier factory rails.
$549
Versatile Mounting Clamps — 2-Pack
2″ or 3″ versions. Secure any RTT that uses standard crossbar mounting brackets to the DualTrack rail.
$59
Awning Mount for DualTrack Roof Rails
Run an awning alongside your rooftop tent. Set of 2 mounts slides into the DualTrack T-slot — no drilling.
$69
Shop all INEOS Grenadier Crossbars & Roof Rails →