2024 Forest River Rockwood Freedom 1640LTD vs 2025 Opus OP4

Detailed Comparison

Both the 2024 Forest River Rockwood Freedom 1640LTD and the 2025 Opus OP4 have loyal followings, and for good reason. Here's an objective look at how they measure up.

Starting with size, the Forest River Rockwood Freedom 1640LTD measures 18.0 ft long and tips the scales at 1,500 lbs dry weight. The Opus OP4 comes in at 16.5 ft with a dry weight of 3,300 lbs.

The Forest River Rockwood Freedom 1640LTD sleeps 6 while the Opus OP4 accommodates 4.

For boondocking enthusiasts, tank sizes matter. Solar-wise, you get 50W on the Forest River Rockwood Freedom 1640LTD and 100W on the Opus OP4.

At $24,000 MSRP for the Forest River Rockwood Freedom 1640LTD and $24,000 for the Opus OP4, the Opus OP4 saves you $0. With only a 0% price difference, the choice comes down to features rather than cost.

If you're traveling with a family, look for the model with more sleeping positions and better storage. If you're a weekend camper, don't over-buy — the smaller, lighter model may serve you perfectly.

The numbers tell one story, but the feel of a floor plan is personal. Schedule a walkthrough before you decide.

When it comes to water management, tank capacity plays a major role in how long you can stay off the grid. The 2024 Forest River Rockwood Freedom 1640LTD features a 27-gallon fresh water tank for self-contained camping. Gray water capacity favors the 2024 Forest River Rockwood Freedom 1640LTD at 12 gallons versus 9 gallons, which directly affects how often you need to find a dump station. The 2024 Forest River Rockwood Freedom 1640LTD also leads in black water capacity with 12 gallons compared to 6 gallons, an important consideration for families or full-time travelers.

Electrical systems are increasingly important as RVers rely on more electronics and appliances. With 100W of solar, the 2025 Opus OP4 outpaces the 2024 Forest River Rockwood Freedom 1640LTD's 50W setup, offering better energy independence away from hookups. The 2025 Opus OP4's 1000W inverter can handle heavier loads than the 500W inverter in the other unit, which matters if you plan to run a microwave, coffee maker, or hair dryer without shore power.

For solo travelers and couples who value maneuverability, the 2025 Opus OP4 with its more compact footprint will be easier to navigate through tight campgrounds and mountain passes. Families with children should lean toward the 2024 Forest River Rockwood Freedom 1640LTD, which sleeps up to 6 and provides more flexibility for overnight guests. Full-time RVers who spend extended periods off-grid will benefit most from the 2025 Opus OP4's power setup and the 2024 Forest River Rockwood Freedom 1640LTD's water reserves, as these directly impact daily comfort and independence from hookups. Weekend warriors and seasonal campers who primarily stay at full-hookup campgrounds may find that the differences in tank sizes and power systems matter less, allowing them to focus on floor plan preference and overall comfort instead.

Both models carry the same $24,000 MSRP, so the buying decision comes down purely to features, floor plan preference, and brand loyalty rather than budget constraints. It is also worth considering that Forest River and Opus have different dealer networks and warranty programs, which can significantly impact your long-term ownership experience and resale value down the road.