2025 Grand Design Solitude 280RK vs 2025 Grand Design Momentum G-Class 28G

Detailed Comparison

Shopping for an RV and torn between the 2025 Grand Design Solitude 280RK and the 2025 Grand Design Momentum G-Class 28G? We've put together a detailed spec comparison to help you decide.

Dimensionally, you're looking at 34.5 ft for the Grand Design Solitude 280RK and 43.0 ft for the Grand Design Momentum G-Class 28G. The Grand Design Momentum G-Class 28G carries an extra 3,700 lbs, which affects tow vehicle requirements and fuel economy.

Capacity-wise, expect to sleep 6 in the Grand Design Solitude 280RK versus 10 in the Grand Design Momentum G-Class 28G. With 4 and 0 slide-outs respectively, the parked floor plans differ significantly.

Tank capacities are a key off-grid consideration. The Grand Design Solitude 280RK carries 57 gal of fresh water, 74 gal gray, and 43 gal black. The Grand Design Momentum G-Class 28G offers 56 gal fresh, 80 gal gray, and 46 gal black. The Grand Design Solitude 280RK has the edge for extended dry camping.

Budget-wise, the Grand Design Momentum G-Class 28G is listed at $70,000 compared to $171,000 for the Grand Design Solitude 280RK. The $101,000 difference could cover upgrades, accessories, or several seasons of camping.

For family camping trips, the larger floor plan and additional berths make a real difference. For boondocking, the model with superior solar and battery setup will keep you comfortable off the grid longer. If you're going full-time, the larger tanks and more robust build quality matter enormously.

Remember, the perfect RV is the one you'll actually use. Pick the one that excites you most and hit the road.