INEOS Grenadier Roof Bars: OEM Gutter-Clamp vs DVA DualTrack-T™ MAX, What Owners Who’ve Run Both Say

The 4-bar DualTrack system rates at 300 lb total dynamic — outrating the INEOS OEM 2-bar kit's 242 lb on-road total (209 lb cargo + 33 lb bars). The OEM's remaining edge is static capacity: 826 lb parked vs 600 lb for 4-bar DualTrack. Owners who've run both describe the same split consistently, and the comparison below is the numbers behind it.

The Numbers Side by Side

Mount System and Positioning

The OEM bars clamp to the Grenadier’s rain gutter ledge. DVA describes the functional distinction directly, from a forum thread where owners compared both systems:

Both systems slide freely along their mounting surface. OEM bars move anywhere along the rain gutter’s length. DualTrack-T™ MAX bars slide along the factory roof rails across the same practical span. Trucks fitted with External Roof Power Outlet housings see those housings occupy part of the rail, narrowing usable range slightly, allowing an owner to use up to 6 bars on the roof. Grenadiers without them have the full rail length available and can fit more crossbars if needed.

Positioning adjusts without removing or swapping hardware. Slide, set, secure.

Load Ratings: Reading the Numbers Correctly

The INEOS OEM 2-bar kit carries 209 lb cargo on-road (242 lb total incl. 33 lb bars) and 165 lb cargo off-road (198 lb total incl. bars), with 826 lb static. Those figures are for the complete 2-bar kit. DualTrack-TTM MAX scales with configuration:

Dynamic ratings apply while the vehicle is in motion; static ratings apply when parked (rooftop tent with occupants, for example). The INEOS owner's manual sets model-specific vehicle ceilings that apply regardless of which crossbar system is installed — 330 lb dynamic for Station Wagon, 264 lb dynamic for Quartermaster (both figures include the weight of the rack itself).

At 7 lb per bar, the 4-bar DVA kit's hardware weighs 28 lb. On a Station Wagon (330 lb ceiling): 300 lb kit rating is the operative limit, leaving 272 lb for gear. On a Quartermaster (264 lb ceiling): the vehicle ceiling applies first — 264 lb minus 28 lb rack = 236 lb maximum gear load while driving. The INEOS OEM kit retains a static edge: 826 lb parked vs the 4-bar DualTrack's 600 lb. For most builds, the 2-bar DVA rating (150 lb total) covers awnings, lights, and light cargo on either variant. The 4-bar handles RTTs and heavier setups, with the Quartermaster's lower ceiling as the binding constraint.

The INEOS OEM kit's static rating of 826 lb is its real competitive advantage. A large RTT with occupants, or a full cargo platform with expedition gear, can push past the DualTrack-TTM MAX static limits. For those setups, the OEM kit earns its place. For awnings, lights, Starlink, and standard cargo, DualTrack-TTM MAX covers the load.

“I use the OEM for large loads. I leave the DVA on all the time.” aztec, The INEOS Forum, April 2026

Track Systems: L-Track + T-Slot vs T-Slot Only

OEM bars have a T-slot channel. Accessories using OEM T-slot hardware mount directly into that channel — no external clamps required for compatible gear. The limitation is compatibility: T-slot hardware is a fixed ecosystem. Third-party awning arms, L-Track tie-down rings, and aftermarket cargo sliders don’t fit without adapters.

The functional difference is the L-Track + 25mm T-slot built into each bar — precise accessory placement anywhere along the rail, with no fixed positions or separate adapter plates required for compatible gear.

DualTrack-T™ MAX combines both channels in a single bar. Any L-Track-compatible accessory slides to any position along the full bar length and locks with standard hardware. The 25mm T-slot accepts OEM-compatible accessories too, so owners switching from OEM bars keep their existing hardware. Two channels on one bar means a Starlink bracket and an awning arm can run simultaneously without competing for position. OEM bars give you T-slot only — which covers OEM accessories well, but adds adapters for anything outside that ecosystem.

Garage Clearance

Stock Grenadier height is 77.5” (1,969mm). OEM bars add 90mm (3.5”), bringing the loaded vehicle to approximately 81”. A standard residential garage door is 84”. That leaves 3 inches of clearance before the bars themselves are a problem. A light bar, a Starlink kickstand, or an awning arm bracket each reduce that margin further.

DualTrack-T™ MAX adds approximately 1”, keeping the truck at roughly 78.5” and preserving about 5.5 inches under a standard door. For owners who park inside daily, that delta determines whether accessories can stay mounted between drives.

One owner after their first drive with DualTrack-T™ MAX installed:

“When they say this is low profile they are not joking! This thing sits LOW! It is streamline and very clean. I have had the opportunity to drive with it and there is no humming, whirring, or loud whining sounds that sometimes come from roof racks.” Grenadiertrialgirl, TheIneosForum, December 2024

Stiffness Off-Road

In practice, the bars don’t flex under trail loads. The bolt-to-factory-rail attachment transfers load to the roof’s structural points directly. A 100 lb case over rough terrain produced no noise or movement from the roof mounting.

Installation

DualTrack-T™ MAX goes on in 45–60 minutes with basic hand tools. Allen keys are included. Bars bolt to factory attachment points and remove the same way, leaving no marks or residue. The OEM kit runs 30–45 minutes using gutter clamps that seat without torque reference. Both systems are fully reversible to stock without drilling.

Full Platform Racks

Platform racks and crossbars serve different purposes. A full roof rack sits 2–4 inches higher than the roofline and weighs 45–90 lb before gear. Leitner’s roll-cage mount design sits at the low end at 2 inches; gutter-mount full platforms run 3–4 inches; one bolt-on modular platform measures 3.68” from the roof center at the rear. Brands in this segment: LFD Off-Road, Trail-Racks, Leitner, Rhino Rack Backbone.

“I’m a fan of my LFD Off-Road full rack; with Maxtrax and a Hi-Lift on top it is quieter than stock (I have safari windows). The sides are stainless steel and have a bend for rigidity, the crossbars are aluminum.” anand, TheIneosForum — Roof Rack thread, Oct 2024

“Seems all the full roof racks have at least some mounts that attach to the gutter. If that isn’t your preference then there are no options.” angusmacg, TheIneosForum — Roof Rack thread, Oct 2024

DualTrack-T™ MAX crossbars avoid the gutter entirely. Every current full platform option for the Grenadier uses at least some gutter attachment.

2-Bar, 4-Bar, or 6-Bar

The practical question is load budget and use case.

• 2-bar: 150 lb dynamic / 300 lb static. Covers awnings, a single light bar, and light cargo.
• 4-bar: 300 lb dynamic / 600 lb static. Handles RTT setups, heavier cargo, and full overland builds.

Vehicle ceilings from the INEOS owner's manual (includes rack weight):

• Station Wagon: 330 lb (150 kg) dynamic — DVA 4-bar: 28 lb rack + up to 272 lb gear. Kit's 300 lb rating is the operative limit.
• Quartermaster: 264 lb (119 kg) dynamic — DVA 4-bar: 28 lb rack + up to 236 lb gear. Vehicle ceiling is the operative limit, not the kit's 300 lb rating.

The INEOS OEM 2-bar kit's 242 lb on-road total (209 lb cargo + 33 lb bars) stays within both vehicle ceilings. For 2-bar DVA (150 lb total, incl. 14 lb rack): also within both ceilings. Always verify your specific variant's limit before loading.