For most Grenadier owners, DVA DualTrack crossbars are the default answer: they bolt to the factory roof rail attachment points (no drilling, fully reversible), sit at ~1" profile to clear a 7' garage door even with a Starlink mounted, and include dual L-Track channels for accessory placement. A 4-bar kit delivers 400 lb static / 200 lb dynamic capacity — matching the price of just 2 OEM bars. OEM bars make sense if you need maximum gutter-clamp placement flexibility or plan to run very heavy static loads (795 lb static). Full platform racks (Leitner and similar) suit owners who want a fixed cargo deck and don't move their gear regularly.
Why the Grenadier's Roof System Changes the Equation
The INEOS Grenadier ships with factory roof rails on most trims — a pair of extruded aluminum longitudinal rails running the length of the roofline, attached to factory hard points. Those rails are the foundation of everything that goes on the roof: crossbars, platform racks, awning mounts, solar brackets.
What separates the Grenadier from most SUVs is that the rails themselves are structural — not just aesthetic. The factory attachment points are drilled and reinforced from the factory, which is why aftermarket manufacturers like DVA can build crossbar systems that bolt directly to those points without modification. You're working with a purpose-built platform, not improvising around a rain gutter.
That said, the three main crossbar systems available for the Grenadier use the roof differently — and choosing the wrong one for your use case means either paying for capacity you'll never use or discovering the system doesn't fit your load six months later.
Option 1: OEM INEOS Cross Bars
The INEOS factory cross bars use a clamp system that mounts to the rain gutter ledge — the outermost edge of the roof where the body panel meets the roofline. Because the clamp can position anywhere along the gutter length, you can adjust bar placement freely without being constrained to the factory rail attachment points.
The OEM bars are heavy-duty by design. Load ratings come in at 198 lb dynamic / 795 lb static per bar, which gives them the highest static ceiling of any of the three options. They also accept side awning mounts directly, which matters if you're planning an awning-forward build.
The trade-off is profile height. The OEM bars sit noticeably higher than the DVA system — which means garage height calculations need to account for that clearance, and some owners report wind noise at speed, particularly when bars are positioned forward of the roof rails.
"The OEM are very heavy duty and can be placed at any point on the rain gutters. The racks are higher. They can be noisy at speed if mounted forward of the roof bars. Dynamic load is 198 pounds and static of 795 pounds. They have options for side awning mounts."
— Owner running both OEM and DVA systems, TheIneosForum.com thread #12421619The same owner's conclusion after running both systems: "I use the OEM for large loads. I leave the DVA on all the time." That split is informative — it implies the OEM bars aren't daily-driver comfortable, while the lower-profile DVA system stays on the car year-round.
Option 2: DVA DualTrack Crossbars
The DVA DualTrack system takes a different approach: instead of clamping to the gutter, each bar bolts directly to the factory roof rail attachment points using the OEM hardware interfaces. No drilling, no permanent modification — the system is fully reversible to stock.
The profile result of that design choice is approximately 1 inch above the roofline. That's the difference between clearing a 7' garage door and not. In practice, it means owners running a Starlink Mini on the DVA mount (using the purpose-built bracket) can still pull into a standard parking garage without a second thought.
Load ratings on the DualTrack kit: 400 lb static / 200 lb dynamic for a 4-bar configuration. That covers RTTs, kayaks, solar panels, and gear cases within the Grenadier's roof budget. DVA confirmed the value math directly in a forum thread: a 4-bar DualTrack kit runs the same price as 2 OEM bars, with more mounting interface flexibility.
"To answer your question on the mounting systems: the OEM cross bars mount to the roof gutter ledge using a clamp system. Our DualTrack crossbars bolt directly to the factory roof rail attachment points. Fully reversible to stock since no drilling or permanent modification is needed. The big functional difference is the dual-row L-Track built into each bar. That gives you precise accessory placement anywhere along the rail without fixed mounting positions or adapter plates. The ~1\" profile keeps you under a 7' garage door, too — even with the Starlink installed using our mount."
— DVA Mechanics, TheIneosForum.com thread #12421619The dual L-Track channels built into each bar are the feature that owners mention most after installation. Instead of predetermining accessory positions before the bars go on, you slide accessories into the L-Track and lock them anywhere along the bar's length — then reposition whenever your load changes. It's the difference between a fixed rail and a modular platform.
"DVA Mechanics roof bars all day long. They are robust and low profile. Just check the weight ratings for what you intend to use them for, make sure you don't get bars when a rack was needed etc."
— okgo, INEOS Grenadier owner, TheIneosForum.com thread #12421619On rigidity — a common concern before purchase — owners who've run the DualTrack system under real load report no meaningful flex:
"The DualTrack Crossbars are extremely stiff. I have to stand on one with my full body weight (175 lbs) to see any deflection. During our Moab trip we had a case loaded to around 100 lbs up top, and I remember at least 3 hard rock hits on the side step. The impact sound never came from the roof."
— Grenadier owner, TheIneosForum.com thread #12421619Option 3: Full Platform Racks
Full platform racks — like the Leitner 3/4 platform, which regularly comes up in Grenadier owner discussions — offer something neither crossbar system can: a fixed deck surface for cargo that doesn't need to be strapped to individual bars. If you consistently carry the same load configuration (traction boards mounted flat, a cargo net over recovery gear, a rooftop tent that stays on), a platform rack removes the variable-placement problem entirely.
The trade-off is profile. Platform racks sit meaningfully higher than crossbars, add significant weight (~20-30 lbs for most Grenadier-compatible options), and reduce the effective dynamic payload budget because the rack itself counts against your roof load.
"I like the idea of more coverage with the Leitner rack, but I like the lower price and footprint of the DVA crossbars. My concern with the crossbars is the lack of coverage and flexibility in where they are placed."
— mister_bevilacqua, Grenadier owner (HTX), TheIneosForum.com thread #12422107Platform racks also tend to lock you into a specific accessory ecosystem — the mounting hardware for your tent, solar, or other gear is designed around the rack's cross-section. If you switch systems later, you're often replacing mounting hardware as well.
How Owners Actually Decide
Looking at the forum discussion patterns across dozens of build threads, three owner profiles emerge consistently:
DVA DualTrack fits owners who: park in garages or covered structures, carry varied loads that change trip-to-trip, want a year-round-on solution that doesn't affect daily driving, or plan to run a Starlink mount, kayak straps, and other accessories through the same bar interface.
OEM bars fit owners who: need maximum static load capacity for expedition-weight kit, want the option to run a side awning directly from the bar, or specifically need gutter-placement flexibility that the factory attachment points don't cover.
Platform racks fit owners who: run fixed, consistent overland setups (RTT on permanently, same recovery gear every trip), want a flat deck surface for cargo nets or crates, and are less concerned about garage clearance or daily-driver noise profile.
"I have the DVA bars and I carry all sorts every now and again, including fencing timber and once had half a ton of firewood on top with no problems. I am also fairly sure the roof has not bent in. I like the bars, they are minimalist and don't get in the way. I also don't have anything permanent on the roof."
— okgo, INEOS Grenadier owner (England), TheIneosForum.com thread #12422107DVA DualTrack: The Build Platform That Scales
What most owners discover after installing the DualTrack crossbars is that the L-Track channels unlock a modular build path that the OEM system doesn't offer. Starlink mounts, kayak cradles, gear tie-downs, awning brackets — all of them slide into the same L-Track channel without dedicated adapter plates.
The extruded aluminum construction (DVA uses extruded profiles, not CNC-machined), combined with the factory bolt interface, means the bars handle load through the same hard points the factory engineers designed for roof loads. That's a different structural equation than a gutter clamp, which distributes force through the painted body edge.
For owners comparing value at the point of purchase: a 4-bar DualTrack kit replaces 2 OEM bars at the same price point, with a lower profile, L-Track functionality included, and a reversible install that doesn't affect your warranty.
Featured Product
DualTrack™ Roof Crossbar System — INEOS Grenadier
Factory-bolt install, ~1" profile, dual L-Track channels, 400 lb static / 200 lb dynamic (4-bar). No drilling. Fully reversible. Fits all Grenadier trims.
View DualTrack System →Crossbar Count: 2-Bar vs 4-Bar vs 6-Bar
One practical question that comes up often: how many crossbars do you actually need? The answer depends on what you're carrying and how the weight distributes.
2-bar setup: Adequate for light, centered loads — a compact gear case, solar panels positioned mid-roof, or a short kayak with a tight span. Not recommended for RTTs or anything that spans the full roof length.
4-bar setup: The most common configuration, and what DVA rates the 400 lb static / 200 lb dynamic capacity against. Covers RTTs, dual kayaks, and most gear scenarios without concern about load distribution. Forum owners consistently report this as sufficient for regular overlanding use.
6-bar setup: Relevant if you're running the full roof length for cargo — long boards, timber, or very wide loads that benefit from an additional support point. The forum thread on DVA vs Leitner had a useful datapoint: one UK owner with 4 DVA bars noted he'd "never needed or thought about adding more," having hauled fencing timber and significant firewood loads without issue.
Browse the complete Grenadier roof rail system collection to see current kit configurations and bar count options.
Installation Overview: What the Process Looks Like
Both the OEM bars and the DVA DualTrack system are owner-installable without special tools. The DualTrack install involves removing the factory plastic end caps on the longitudinal roof rails, positioning each crossbar at the designated attachment point, and bolting through to the factory-threaded inserts. The whole process typically runs 45-60 minutes for a 4-bar kit.
The main practical constraint on DualTrack placement is that the bars can only go where the factory roof rail attachment points are — they can't float to arbitrary positions like a gutter clamp. In practice, the factory points are positioned to distribute load optimally across the roof span, so this constraint is rarely a problem. The only scenario where it matters is if you have the factory aux power outlets at the roof rail, which can block one bar position depending on trim — something worth confirming before ordering.
Complete Grenadier Roof Build
INEOS Grenadier Roof Rail System — All Options
Crossbars, rail extensions, and Starlink mounts for the INEOS Grenadier. All bolt-on, no drilling.
Shop Roof Rail System →For owners still deciding between systems, the complete INEOS Grenadier upgrades collection covers the full DVA ecosystem — from crossbars to side carriers to recovery mounts — if you're planning a full build rather than a single-accessory install.